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href="/archive/issues/1985/">1985</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1986/">1986</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1987/">1987</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1988/">1988</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1989/">1989</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1990/">1990</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1991/">1991</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1992/">1992</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1993/">1993</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1994/">1994</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1995/">1995</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1996/">1996</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1997/">1997</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1998/">1998</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/1999/">1999</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2000/">2000</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2001/">2001</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2002/">2002</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2003/">2003</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2004/">2004</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2005/">2005</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2006/">2006</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2007/">2007</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2008/">2008</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2009/">2009</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2010/">2010</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2011/">2011</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2012/">2012</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2013/">2013</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2014/">2014</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2015/">2015</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2016/">2016</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2017/">2017</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2018/">2018</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2019/">2019</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2020/">2020</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2021/">2021</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2022/">2022</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2023/">2023</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2024/">2024</a><a class="date-selector" style="cursor:pointer;border:none;color:var(--color-black);border-radius:0.5rem;padding:0.25rem 0.5rem;font-weight:400;text-decoration:none" href="/archive/issues/2025/">2025</a></div></div></div><div class="issue__list-8JHD2"><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/12-31/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/6B4EDB2E-8CF4-4702-AE0B8B4804865963_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 27" srcSet="https://static.scientificamerican.com/sciam/cache/file/6B4EDB2E-8CF4-4702-AE0B8B4804865963_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/6B4EDB2E-8CF4-4702-AE0B8B4804865963_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-31">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/12-24/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/2B8D6CF6-D59A-4AFE-9B2DA5582979C3DD_source.gif?w=600" alt="SA Supplements Vol 24 Issue 625supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/2B8D6CF6-D59A-4AFE-9B2DA5582979C3DD_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/2B8D6CF6-D59A-4AFE-9B2DA5582979C3DD_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-24">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/12-24/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/20B0B421-E0DA-4579-8403AF7F6ABE170D_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 26" srcSet="https://static.scientificamerican.com/sciam/cache/file/20B0B421-E0DA-4579-8403AF7F6ABE170D_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/20B0B421-E0DA-4579-8403AF7F6ABE170D_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-24">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/12-17/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/9862FCAA-A71D-4863-98483AEFDF1470D6_source.gif?w=600" alt="SA Supplements Vol 24 Issue 624supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/9862FCAA-A71D-4863-98483AEFDF1470D6_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/9862FCAA-A71D-4863-98483AEFDF1470D6_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-17">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/12-17/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/3CF8A382-702C-4AA9-B0A47C149043556B_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 25" srcSet="https://static.scientificamerican.com/sciam/cache/file/3CF8A382-702C-4AA9-B0A47C149043556B_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/3CF8A382-702C-4AA9-B0A47C149043556B_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-17">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/12-10/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/5461EFF5-ED83-48BB-8374F10341A009DB_source.gif?w=600" alt="SA Supplements Vol 24 Issue 623supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/5461EFF5-ED83-48BB-8374F10341A009DB_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/5461EFF5-ED83-48BB-8374F10341A009DB_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-10">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/12-10/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/9405C7C0-BF30-43CD-AF1D35EC4ED218EC_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 24" srcSet="https://static.scientificamerican.com/sciam/cache/file/9405C7C0-BF30-43CD-AF1D35EC4ED218EC_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/9405C7C0-BF30-43CD-AF1D35EC4ED218EC_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-10">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/12-03/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/D20E7854-3F61-4596-BF997143131C7E90_source.gif?w=600" alt="SA Supplements Vol 24 Issue 622supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/D20E7854-3F61-4596-BF997143131C7E90_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/D20E7854-3F61-4596-BF997143131C7E90_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-03">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/12-03/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/52CCDFE9-EAA6-42B0-A54B52A95B2649D4_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 23" srcSet="https://static.scientificamerican.com/sciam/cache/file/52CCDFE9-EAA6-42B0-A54B52A95B2649D4_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/52CCDFE9-EAA6-42B0-A54B52A95B2649D4_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-03">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/12-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/D53D4990-82AE-458E-B43215ADB70BF6C8_source.gif?w=600" alt="SA Builders Vol 4 Issue 6build" srcSet="https://static.scientificamerican.com/sciam/cache/file/D53D4990-82AE-458E-B43215ADB70BF6C8_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/D53D4990-82AE-458E-B43215ADB70BF6C8_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-12-01">December 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/11-26/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/2D770CE0-905C-456D-896CD81DAC65599D_source.gif?w=600" alt="SA Supplements Vol 24 Issue 621supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/2D770CE0-905C-456D-896CD81DAC65599D_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/2D770CE0-905C-456D-896CD81DAC65599D_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-26">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/11-26/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/88BB8829-C278-4E5F-B531070EBBF14D02_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 22" srcSet="https://static.scientificamerican.com/sciam/cache/file/88BB8829-C278-4E5F-B531070EBBF14D02_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/88BB8829-C278-4E5F-B531070EBBF14D02_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-26">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/11-19/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/1C3AD457-3D41-428A-8F368F883F6B3E84_source.gif?w=600" alt="SA Supplements Vol 24 Issue 620supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/1C3AD457-3D41-428A-8F368F883F6B3E84_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/1C3AD457-3D41-428A-8F368F883F6B3E84_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-19">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/11-19/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/6FCAB58C-35FD-4529-B9A4A3FF1EB2CAB0_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 21" srcSet="https://static.scientificamerican.com/sciam/cache/file/6FCAB58C-35FD-4529-B9A4A3FF1EB2CAB0_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/6FCAB58C-35FD-4529-B9A4A3FF1EB2CAB0_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-19">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/11-12/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/AA6FE8C4-4490-4212-913BEC0F76E722F3_source.gif?w=600" alt="SA Supplements Vol 24 Issue 619supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/AA6FE8C4-4490-4212-913BEC0F76E722F3_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/AA6FE8C4-4490-4212-913BEC0F76E722F3_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-12">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/11-12/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/A6FEFB03-CB5B-4E0E-9F8B7F38A41FFD6F_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 20" srcSet="https://static.scientificamerican.com/sciam/cache/file/A6FEFB03-CB5B-4E0E-9F8B7F38A41FFD6F_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/A6FEFB03-CB5B-4E0E-9F8B7F38A41FFD6F_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-12">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/11-05/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/9E60B7C2-C856-44D4-A1BC71BCB8559E6F_source.gif?w=600" alt="SA Supplements Vol 24 Issue 618supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/9E60B7C2-C856-44D4-A1BC71BCB8559E6F_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/9E60B7C2-C856-44D4-A1BC71BCB8559E6F_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-05">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/11-05/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/DD816ADD-4149-4C00-BCC634F935082839_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 19" srcSet="https://static.scientificamerican.com/sciam/cache/file/DD816ADD-4149-4C00-BCC634F935082839_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/DD816ADD-4149-4C00-BCC634F935082839_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-05">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/11-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/6B2062DA-8E2C-4B98-A005F5FAD216450E_source.gif?w=600" alt="SA Builders Vol 4 Issue 5build" srcSet="https://static.scientificamerican.com/sciam/cache/file/6B2062DA-8E2C-4B98-A005F5FAD216450E_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/6B2062DA-8E2C-4B98-A005F5FAD216450E_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-11-01">November 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/10-29/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/8DFCC63D-C44A-4146-93339ABB238BC282_source.gif?w=600" alt="SA Supplements Vol 24 Issue 617supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/8DFCC63D-C44A-4146-93339ABB238BC282_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/8DFCC63D-C44A-4146-93339ABB238BC282_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-29">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/10-29/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/A14330DB-4B7C-455E-B2C24D30F2EB94C4_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 18" srcSet="https://static.scientificamerican.com/sciam/cache/file/A14330DB-4B7C-455E-B2C24D30F2EB94C4_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/A14330DB-4B7C-455E-B2C24D30F2EB94C4_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-29">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/10-22/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/4766D638-505E-443D-ACC20DA165CBE9E6_source.gif?w=600" alt="SA Supplements Vol 24 Issue 616supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/4766D638-505E-443D-ACC20DA165CBE9E6_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/4766D638-505E-443D-ACC20DA165CBE9E6_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-22">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/10-22/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/688E3AF3-88C6-4266-9D06ACF405A0AA15_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 17" srcSet="https://static.scientificamerican.com/sciam/cache/file/688E3AF3-88C6-4266-9D06ACF405A0AA15_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/688E3AF3-88C6-4266-9D06ACF405A0AA15_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-22">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/10-15/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/0A4E28AD-F05A-4BED-AB73181C4A36F5F6_source.gif?w=600" alt="SA Supplements Vol 24 Issue 615supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/0A4E28AD-F05A-4BED-AB73181C4A36F5F6_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/0A4E28AD-F05A-4BED-AB73181C4A36F5F6_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-15">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/10-15/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/B0BD29AD-3FCC-4EE4-99889CBD1D82838A_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 16" srcSet="https://static.scientificamerican.com/sciam/cache/file/B0BD29AD-3FCC-4EE4-99889CBD1D82838A_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/B0BD29AD-3FCC-4EE4-99889CBD1D82838A_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-15">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/10-08/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/FF66E293-59BB-45CA-8039B354AC5EA1BB_source.gif?w=600" alt="SA Supplements Vol 24 Issue 614supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/FF66E293-59BB-45CA-8039B354AC5EA1BB_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/FF66E293-59BB-45CA-8039B354AC5EA1BB_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-08">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/10-08/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/0D93E568-5AA0-4D61-AF11DA8A864BBE04_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 15" srcSet="https://static.scientificamerican.com/sciam/cache/file/0D93E568-5AA0-4D61-AF11DA8A864BBE04_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/0D93E568-5AA0-4D61-AF11DA8A864BBE04_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-08">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/10-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/7E3F571F-6E8B-438E-88AABF2D6F30E536_source.gif?w=600" alt="SA Supplements Vol 24 Issue 613supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/7E3F571F-6E8B-438E-88AABF2D6F30E536_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/7E3F571F-6E8B-438E-88AABF2D6F30E536_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-01">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/10-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/8C6AEF8F-8367-4172-9E61E50E2FF6387A_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 14" srcSet="https://static.scientificamerican.com/sciam/cache/file/8C6AEF8F-8367-4172-9E61E50E2FF6387A_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/8C6AEF8F-8367-4172-9E61E50E2FF6387A_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-01">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/10-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/63FC1E29-C273-4E6E-936781083D236B58_source.gif?w=600" alt="SA Builders Vol 4 Issue 4build" srcSet="https://static.scientificamerican.com/sciam/cache/file/63FC1E29-C273-4E6E-936781083D236B58_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/63FC1E29-C273-4E6E-936781083D236B58_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-10-01">October 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/09-24/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/7A758A22-CF8A-42BE-97124BF56A7F4911_source.gif?w=600" alt="SA Supplements Vol 24 Issue 612supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/7A758A22-CF8A-42BE-97124BF56A7F4911_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/7A758A22-CF8A-42BE-97124BF56A7F4911_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-24">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/09-24/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/2F20B739-D4C6-40F8-B5D6515E444C5BD3_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 13" srcSet="https://static.scientificamerican.com/sciam/cache/file/2F20B739-D4C6-40F8-B5D6515E444C5BD3_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/2F20B739-D4C6-40F8-B5D6515E444C5BD3_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-24">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/09-17/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/CFD07CF7-35B8-44C1-8FD672F8D9F39780_source.gif?w=600" alt="SA Supplements Vol 24 Issue 611supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/CFD07CF7-35B8-44C1-8FD672F8D9F39780_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/CFD07CF7-35B8-44C1-8FD672F8D9F39780_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-17">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/09-17/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/74761725-A883-4B09-B1089416DAE0CC3A_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 12" srcSet="https://static.scientificamerican.com/sciam/cache/file/74761725-A883-4B09-B1089416DAE0CC3A_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/74761725-A883-4B09-B1089416DAE0CC3A_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-17">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/09-10/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/BEBD71C5-30C5-440A-A75E696DCAD9F48C_source.gif?w=600" alt="SA Supplements Vol 24 Issue 610supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/BEBD71C5-30C5-440A-A75E696DCAD9F48C_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/BEBD71C5-30C5-440A-A75E696DCAD9F48C_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-10">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/09-10/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/BA01652E-4B56-46D6-9758092F5949186D_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 11" srcSet="https://static.scientificamerican.com/sciam/cache/file/BA01652E-4B56-46D6-9758092F5949186D_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/BA01652E-4B56-46D6-9758092F5949186D_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-10">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/09-03/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/7FBDD1D8-FCC0-4D6F-90ABB17ADD49A886_source.gif?w=600" alt="SA Supplements Vol 24 Issue 609supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/7FBDD1D8-FCC0-4D6F-90ABB17ADD49A886_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/7FBDD1D8-FCC0-4D6F-90ABB17ADD49A886_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-03">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/09-03/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/1F8CCAF9-C846-4774-BB6B58E99AD3980E_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 10" srcSet="https://static.scientificamerican.com/sciam/cache/file/1F8CCAF9-C846-4774-BB6B58E99AD3980E_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/1F8CCAF9-C846-4774-BB6B58E99AD3980E_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-03">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/09-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/CE6748BE-7AB6-483B-B7EFA7294C67B9F8_source.gif?w=600" alt="SA Builders Vol 4 Issue 3build" srcSet="https://static.scientificamerican.com/sciam/cache/file/CE6748BE-7AB6-483B-B7EFA7294C67B9F8_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/CE6748BE-7AB6-483B-B7EFA7294C67B9F8_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-09-01">September 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/08-27/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/60D6F1BD-8D32-417C-9205B85DC17EDAB7_source.gif?w=600" alt="SA Supplements Vol 24 Issue 608supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/60D6F1BD-8D32-417C-9205B85DC17EDAB7_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/60D6F1BD-8D32-417C-9205B85DC17EDAB7_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-27">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/08-27/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/A6D0CDAC-AC17-4322-88BAE7E5369B0008_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 9" srcSet="https://static.scientificamerican.com/sciam/cache/file/A6D0CDAC-AC17-4322-88BAE7E5369B0008_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/A6D0CDAC-AC17-4322-88BAE7E5369B0008_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-27">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/08-20/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/C619A52A-BC73-44EB-863A9CFCA32D216A_source.gif?w=600" alt="SA Supplements Vol 24 Issue 607supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/C619A52A-BC73-44EB-863A9CFCA32D216A_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/C619A52A-BC73-44EB-863A9CFCA32D216A_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-20">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/08-20/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/48F79E48-4AA0-47C3-817BB3106465B1AA_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 8" srcSet="https://static.scientificamerican.com/sciam/cache/file/48F79E48-4AA0-47C3-817BB3106465B1AA_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/48F79E48-4AA0-47C3-817BB3106465B1AA_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-20">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/08-13/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/38C375B3-52D2-40FE-B5897C6C4CCDF531_source.gif?w=600" alt="SA Supplements Vol 24 Issue 606supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/38C375B3-52D2-40FE-B5897C6C4CCDF531_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/38C375B3-52D2-40FE-B5897C6C4CCDF531_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-13">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/08-13/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/E540198C-FB87-4D7F-A68F7C5CE2D952AD_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 7" srcSet="https://static.scientificamerican.com/sciam/cache/file/E540198C-FB87-4D7F-A68F7C5CE2D952AD_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/E540198C-FB87-4D7F-A68F7C5CE2D952AD_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-13">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/08-06/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/1570A04C-B47D-44D0-A71A7CEC741C1C42_source.gif?w=600" alt="SA Supplements Vol 24 Issue 605supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/1570A04C-B47D-44D0-A71A7CEC741C1C42_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/1570A04C-B47D-44D0-A71A7CEC741C1C42_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-06">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/08-06/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/942ED0B1-B2BC-4326-8F71564E35716532_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 6" srcSet="https://static.scientificamerican.com/sciam/cache/file/942ED0B1-B2BC-4326-8F71564E35716532_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/942ED0B1-B2BC-4326-8F71564E35716532_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-06">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/08-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/270A597A-8202-49E7-BB6CEEDCCA5F9B3F_source.gif?w=600" alt="SA Builders Vol 4 Issue 2build" srcSet="https://static.scientificamerican.com/sciam/cache/file/270A597A-8202-49E7-BB6CEEDCCA5F9B3F_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/270A597A-8202-49E7-BB6CEEDCCA5F9B3F_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-08-01">August 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/07-30/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/E329578D-DE60-4061-8363D80673C27E3B_source.gif?w=600" alt="SA Supplements Vol 24 Issue 604supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/E329578D-DE60-4061-8363D80673C27E3B_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/E329578D-DE60-4061-8363D80673C27E3B_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-30">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/07-30/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/0BEAA755-9CB9-4FB0-89B8A296D6AF0D84_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 5" srcSet="https://static.scientificamerican.com/sciam/cache/file/0BEAA755-9CB9-4FB0-89B8A296D6AF0D84_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/0BEAA755-9CB9-4FB0-89B8A296D6AF0D84_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-30">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/07-23/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/0C16E3EE-3140-4AD2-9017794614F0620E_source.gif?w=600" alt="SA Supplements Vol 24 Issue 603supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/0C16E3EE-3140-4AD2-9017794614F0620E_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/0C16E3EE-3140-4AD2-9017794614F0620E_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-23">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/07-23/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/F5F882EF-A6F5-422E-B9F0BD20A760D545_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 4" srcSet="https://static.scientificamerican.com/sciam/cache/file/F5F882EF-A6F5-422E-B9F0BD20A760D545_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/F5F882EF-A6F5-422E-B9F0BD20A760D545_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-23">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/07-16/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/79916306-C651-41E4-82A7893C552FAA79_source.gif?w=600" alt="SA Supplements Vol 24 Issue 602supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/79916306-C651-41E4-82A7893C552FAA79_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/79916306-C651-41E4-82A7893C552FAA79_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-16">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/07-16/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/5E779C01-F3BC-4012-A3DBCB54B6070C03_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 3" srcSet="https://static.scientificamerican.com/sciam/cache/file/5E779C01-F3BC-4012-A3DBCB54B6070C03_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/5E779C01-F3BC-4012-A3DBCB54B6070C03_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-16">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/07-09/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/8DBE6FEF-5CCD-495F-8C6B025DEFF39589_source.gif?w=600" alt="SA Supplements Vol 24 Issue 601supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/8DBE6FEF-5CCD-495F-8C6B025DEFF39589_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/8DBE6FEF-5CCD-495F-8C6B025DEFF39589_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-09">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/07-09/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/5514AEBA-645C-4CE1-9C52822478E260BE_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 2" srcSet="https://static.scientificamerican.com/sciam/cache/file/5514AEBA-645C-4CE1-9C52822478E260BE_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/5514AEBA-645C-4CE1-9C52822478E260BE_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-09">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/07-02/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/DE6C62FE-8CAA-4EA5-90A4A11EC39D2DDB_source.jpg?w=600" alt="Scientific American Magazine Vol 57 Issue 1" srcSet="https://static.scientificamerican.com/sciam/cache/file/DE6C62FE-8CAA-4EA5-90A4A11EC39D2DDB_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/DE6C62FE-8CAA-4EA5-90A4A11EC39D2DDB_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-02">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/07-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/743B127F-7BC2-4755-80770DCFB11A02A6_source.gif?w=600" alt="SA Builders Vol 4 Issue 1build" srcSet="https://static.scientificamerican.com/sciam/cache/file/743B127F-7BC2-4755-80770DCFB11A02A6_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/743B127F-7BC2-4755-80770DCFB11A02A6_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-07-01">July 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/06-25/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/A4130F0C-1A86-404A-9A5A2368FC0FABB4_source.gif?w=600" alt="SA Supplements Vol 23 Issue 599supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/A4130F0C-1A86-404A-9A5A2368FC0FABB4_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/A4130F0C-1A86-404A-9A5A2368FC0FABB4_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-25">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/06-25/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/80364BB1-6E1E-4707-A88618BF1995BED6_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 26" srcSet="https://static.scientificamerican.com/sciam/cache/file/80364BB1-6E1E-4707-A88618BF1995BED6_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/80364BB1-6E1E-4707-A88618BF1995BED6_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-25">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/06-18/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/DF8559D6-8D02-4106-AEDC2591F47C1B8C_source.gif?w=600" alt="SA Supplements Vol 23 Issue 598supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/DF8559D6-8D02-4106-AEDC2591F47C1B8C_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/DF8559D6-8D02-4106-AEDC2591F47C1B8C_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-18">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/06-18/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/ADCE5C3F-287B-41CB-A2DFAE2E929228A2_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 25" srcSet="https://static.scientificamerican.com/sciam/cache/file/ADCE5C3F-287B-41CB-A2DFAE2E929228A2_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/ADCE5C3F-287B-41CB-A2DFAE2E929228A2_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-18">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/06-11/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/9EE69B78-5298-4BFB-A56ED09923C1B064_source.gif?w=600" alt="SA Supplements Vol 23 Issue 597supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/9EE69B78-5298-4BFB-A56ED09923C1B064_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/9EE69B78-5298-4BFB-A56ED09923C1B064_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-11">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/06-11/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/337A667B-6A6A-4BBE-89B7404551702498_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 24" srcSet="https://static.scientificamerican.com/sciam/cache/file/337A667B-6A6A-4BBE-89B7404551702498_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/337A667B-6A6A-4BBE-89B7404551702498_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-11">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/06-04/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/47F75BEA-0BA0-4A02-8AE55D5E1C438174_source.gif?w=600" alt="SA Supplements Vol 23 Issue 596supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/47F75BEA-0BA0-4A02-8AE55D5E1C438174_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/47F75BEA-0BA0-4A02-8AE55D5E1C438174_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-04">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/06-04/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/3B13B2D8-6140-4A5C-A293053BE9BA2A43_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 23" srcSet="https://static.scientificamerican.com/sciam/cache/file/3B13B2D8-6140-4A5C-A293053BE9BA2A43_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/3B13B2D8-6140-4A5C-A293053BE9BA2A43_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-04">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/06-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/0844CC81-6665-4F98-984B591FB537D202_source.gif?w=600" alt="SA Builders Vol 3 Issue 6build" srcSet="https://static.scientificamerican.com/sciam/cache/file/0844CC81-6665-4F98-984B591FB537D202_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/0844CC81-6665-4F98-984B591FB537D202_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-06-01">June 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/05-28/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/F3C981A5-DF64-44E8-B8D3B16DD4EAB5E1_source.gif?w=600" alt="SA Supplements Vol 23 Issue 595supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/F3C981A5-DF64-44E8-B8D3B16DD4EAB5E1_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/F3C981A5-DF64-44E8-B8D3B16DD4EAB5E1_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-28">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/05-28/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/1F8C3205-FF20-4C1F-B5138780A05004CD_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 22" srcSet="https://static.scientificamerican.com/sciam/cache/file/1F8C3205-FF20-4C1F-B5138780A05004CD_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/1F8C3205-FF20-4C1F-B5138780A05004CD_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-28">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/05-21/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/45B4B7D2-E298-4AFD-BC36166D18258BED_source.gif?w=600" alt="SA Supplements Vol 23 Issue 594supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/45B4B7D2-E298-4AFD-BC36166D18258BED_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/45B4B7D2-E298-4AFD-BC36166D18258BED_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-21">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/05-21/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/8DE298EC-8523-4F6B-854A90E15327BB7B_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 21" srcSet="https://static.scientificamerican.com/sciam/cache/file/8DE298EC-8523-4F6B-854A90E15327BB7B_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/8DE298EC-8523-4F6B-854A90E15327BB7B_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-21">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/05-14/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/5BAA14F3-D754-40E2-BC280BC87FB33061_source.gif?w=600" alt="SA Supplements Vol 23 Issue 593supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/5BAA14F3-D754-40E2-BC280BC87FB33061_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/5BAA14F3-D754-40E2-BC280BC87FB33061_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-14">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/05-14/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/F4A26EE6-3EB5-4A99-874CC5CD9A9B04DC_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 20" srcSet="https://static.scientificamerican.com/sciam/cache/file/F4A26EE6-3EB5-4A99-874CC5CD9A9B04DC_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/F4A26EE6-3EB5-4A99-874CC5CD9A9B04DC_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-14">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/05-07/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/9B7EB2BD-342A-4710-B8DA2B647EA1A45E_source.gif?w=600" alt="SA Supplements Vol 23 Issue 592supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/9B7EB2BD-342A-4710-B8DA2B647EA1A45E_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/9B7EB2BD-342A-4710-B8DA2B647EA1A45E_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-07">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/05-07/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/B0BFC67E-CB40-4D7C-BCBD040BAAA223A5_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 19" srcSet="https://static.scientificamerican.com/sciam/cache/file/B0BFC67E-CB40-4D7C-BCBD040BAAA223A5_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/B0BFC67E-CB40-4D7C-BCBD040BAAA223A5_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-07">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/05-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/469EACDD-B809-4AB6-B9653ACE179D6B14_source.gif?w=600" alt="SA Builders Vol 3 Issue 5build" srcSet="https://static.scientificamerican.com/sciam/cache/file/469EACDD-B809-4AB6-B9653ACE179D6B14_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/469EACDD-B809-4AB6-B9653ACE179D6B14_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-05-01">May 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/04-30/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/5038BB64-BADA-41A4-9731CD01C3520438_source.gif?w=600" alt="SA Supplements Vol 23 Issue 591supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/5038BB64-BADA-41A4-9731CD01C3520438_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/5038BB64-BADA-41A4-9731CD01C3520438_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-30">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/04-30/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/8D51C18E-0DCD-4702-A403E5A09F10949A_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 18" srcSet="https://static.scientificamerican.com/sciam/cache/file/8D51C18E-0DCD-4702-A403E5A09F10949A_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/8D51C18E-0DCD-4702-A403E5A09F10949A_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-30">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/04-23/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/7A8F0891-8B4E-4D44-86CF71DE4034A994_source.gif?w=600" alt="SA Supplements Vol 23 Issue 590supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/7A8F0891-8B4E-4D44-86CF71DE4034A994_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/7A8F0891-8B4E-4D44-86CF71DE4034A994_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-23">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/04-23/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/EFC50DB4-C753-44DB-B5FF3BDA261FCF44_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 17" srcSet="https://static.scientificamerican.com/sciam/cache/file/EFC50DB4-C753-44DB-B5FF3BDA261FCF44_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/EFC50DB4-C753-44DB-B5FF3BDA261FCF44_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-23">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/04-16/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/353C51BC-361B-4AB6-A4576D58C1A90CA4_source.gif?w=600" alt="SA Supplements Vol 23 Issue 589supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/353C51BC-361B-4AB6-A4576D58C1A90CA4_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/353C51BC-361B-4AB6-A4576D58C1A90CA4_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-16">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/04-16/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/72707BE9-2EE7-41E2-A58AE4EC1A7CCBDB_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 16" srcSet="https://static.scientificamerican.com/sciam/cache/file/72707BE9-2EE7-41E2-A58AE4EC1A7CCBDB_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/72707BE9-2EE7-41E2-A58AE4EC1A7CCBDB_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-16">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/04-09/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/7DF649CC-334B-4C81-84997D2C7291BE49_source.gif?w=600" alt="SA Supplements Vol 23 Issue 588supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/7DF649CC-334B-4C81-84997D2C7291BE49_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/7DF649CC-334B-4C81-84997D2C7291BE49_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-09">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/04-09/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/AE4E3CD8-0587-4466-A00551434FD3FDFB_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 15" srcSet="https://static.scientificamerican.com/sciam/cache/file/AE4E3CD8-0587-4466-A00551434FD3FDFB_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/AE4E3CD8-0587-4466-A00551434FD3FDFB_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-09">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/04-02/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/75D1FDEA-B069-40FA-8CAC3F5060CFDDF9_source.gif?w=600" alt="SA Supplements Vol 23 Issue 587supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/75D1FDEA-B069-40FA-8CAC3F5060CFDDF9_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/75D1FDEA-B069-40FA-8CAC3F5060CFDDF9_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-02">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/04-02/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/801E25F7-29B8-4453-8C8753B1FF1F6D03_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 14" srcSet="https://static.scientificamerican.com/sciam/cache/file/801E25F7-29B8-4453-8C8753B1FF1F6D03_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/801E25F7-29B8-4453-8C8753B1FF1F6D03_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-02">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/04-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/544BEBC2-EAD0-43D9-8DE466B78E592445_source.gif?w=600" alt="SA Builders Vol 3 Issue 4build" srcSet="https://static.scientificamerican.com/sciam/cache/file/544BEBC2-EAD0-43D9-8DE466B78E592445_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/544BEBC2-EAD0-43D9-8DE466B78E592445_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-04-01">April 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/03-26/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/5E6625F5-9752-497D-922DC8A029519815_source.gif?w=600" alt="SA Supplements Vol 23 Issue 586supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/5E6625F5-9752-497D-922DC8A029519815_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/5E6625F5-9752-497D-922DC8A029519815_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-26">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/03-26/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/7E4E09D4-5524-4F8D-A290048A0A4D7082_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 13" srcSet="https://static.scientificamerican.com/sciam/cache/file/7E4E09D4-5524-4F8D-A290048A0A4D7082_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/7E4E09D4-5524-4F8D-A290048A0A4D7082_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-26">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/03-19/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/D67563B4-F8A0-4315-B2D541EAD4818931_source.gif?w=600" alt="SA Supplements Vol 23 Issue 585supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/D67563B4-F8A0-4315-B2D541EAD4818931_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/D67563B4-F8A0-4315-B2D541EAD4818931_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-19">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/03-19/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/F3CB3B24-6AE6-4412-BAD27F87E451AD93_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 12" srcSet="https://static.scientificamerican.com/sciam/cache/file/F3CB3B24-6AE6-4412-BAD27F87E451AD93_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/F3CB3B24-6AE6-4412-BAD27F87E451AD93_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-19">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/03-12/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/4B99B018-D286-4D9B-8912EB7ADA34CA3F_source.gif?w=600" alt="SA Supplements Vol 23 Issue 584supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/4B99B018-D286-4D9B-8912EB7ADA34CA3F_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/4B99B018-D286-4D9B-8912EB7ADA34CA3F_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-12">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/03-12/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/E58654C2-768B-4014-9EE9E5EF45BB409C_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 11" srcSet="https://static.scientificamerican.com/sciam/cache/file/E58654C2-768B-4014-9EE9E5EF45BB409C_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/E58654C2-768B-4014-9EE9E5EF45BB409C_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-12">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/03-05/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/B0413485-9443-4285-932FBF40385CA705_source.gif?w=600" alt="SA Supplements Vol 23 Issue 583supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/B0413485-9443-4285-932FBF40385CA705_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/B0413485-9443-4285-932FBF40385CA705_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-05">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/03-05/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/DE234AF5-722E-4778-A20BF051769F6DD9_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 10" srcSet="https://static.scientificamerican.com/sciam/cache/file/DE234AF5-722E-4778-A20BF051769F6DD9_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/DE234AF5-722E-4778-A20BF051769F6DD9_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-05">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/builders/1887/03-01/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/3B12C82C-782E-424D-890754AC87830EB2_source.gif?w=600" alt="SA Builders Vol 3 Issue 3build" srcSet="https://static.scientificamerican.com/sciam/cache/file/3B12C82C-782E-424D-890754AC87830EB2_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/3B12C82C-782E-424D-890754AC87830EB2_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Builders</h3><div class="issue__date-ozuG1"><time dateTime="1887-03-01">March 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/02-26/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/0A934388-F13D-4FB9-8CB8ECABFB9C9616_source.gif?w=600" alt="SA Supplements Vol 23 Issue 582supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/0A934388-F13D-4FB9-8CB8ECABFB9C9616_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/0A934388-F13D-4FB9-8CB8ECABFB9C9616_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-02-26">February 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/02-26/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/DC20A82D-4E83-4E20-A3827D81E121742F_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 9" 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https://static.scientificamerican.com/sciam/cache/file/D2BDED3F-444B-4AF5-8981721683DCA320_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-02-19">February 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/02-19/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/258D0401-23AF-43D7-8C166B7EAE7B59C9_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 8" srcSet="https://static.scientificamerican.com/sciam/cache/file/258D0401-23AF-43D7-8C166B7EAE7B59C9_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/258D0401-23AF-43D7-8C166B7EAE7B59C9_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-02-19">February 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/supplements/1887/02-12/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/31B13546-6991-4828-81A29BDCB18DFC37_source.gif?w=600" alt="SA Supplements Vol 23 Issue 580supp" srcSet="https://static.scientificamerican.com/sciam/cache/file/31B13546-6991-4828-81A29BDCB18DFC37_source.gif?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/31B13546-6991-4828-81A29BDCB18DFC37_source.gif?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Supplements</h3><div class="issue__date-ozuG1"><time dateTime="1887-02-12">February 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a class="issue__link-3e-qg" href="/issue/sa/1887/02-12/"><div class="issue-VnvuN"><div><div><figure class="issueImageContainer-WnIB2"><img class="issue__cover__image-35p5E" src="https://static.scientificamerican.com/sciam/cache/file/91FAD42A-2121-4FE7-8078756A52D6F5F9_source.jpg?w=600" alt="Scientific American Magazine Vol 56 Issue 7" srcSet="https://static.scientificamerican.com/sciam/cache/file/91FAD42A-2121-4FE7-8078756A52D6F5F9_source.jpg?w=300 300w, https://static.scientificamerican.com/sciam/cache/file/91FAD42A-2121-4FE7-8078756A52D6F5F9_source.jpg?w=600 600w" sizes="300px" width="300" loading="lazy"/></figure></div></div><div class="issue__info-Wrv5W"><h3 class="issue__title-rRMdq">Scientific American</h3><div class="issue__date-ozuG1"><time dateTime="1887-02-12">February 1887</time></div></div></div></a></div><div class="list__item--tR3J"><a 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