CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "www.worldcat.org",cType: 'non-interactive',cRay: '9137144b1caa3f7d',cH: '6yK1GlyEC07ZK46.X.tlnbAO1Vco0qLPo_L9tnzoYKQ-1739808959-1.2.1.1-GpAozDLboYCx8BTXI6RGs4RNCyBoJgPgInqwqC0umHTDLEkoI2vAy1_3i24AT4VQ',cUPMDTk: "\/search?q=su%3AAtomic%20theory&__cf_chl_tk=oQTNj_O8V39AbylY2Ot6Se0jVU_Qa2Aw6FBxgMiUm4Q-1739808959-1.0.1.1-frj4MTMju_TZZH6xKpZ1BoX6imWgA._BtT3zLcjX43Q",cFPWv: 'g',cITimeS: '1739808959',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/search?q=su%3AAtomic%20theory&__cf_chl_f_tk=oQTNj_O8V39AbylY2Ot6Se0jVU_Qa2Aw6FBxgMiUm4Q-1739808959-1.0.1.1-frj4MTMju_TZZH6xKpZ1BoX6imWgA._BtT3zLcjX43Q",md: "FsgEb9JI5u9i1cdBJLSjup8vemG86Xvg4hLqiPMD3Pw-1739808959-1.2.1.1-Rfv9G32QZjNnwmhixHX9.R5zQ7gRb44lXV0oR0Lv9VEF2MYtItloo_.Cx5Sb.Ha2k7WIYNDJQ4TUE9eU8UpvrtQs2vtRO7oahpp363O3EnbS79GU8c8aOqokKmulQQQFQkTBJyhBs5pJfOAOtw_92L8XxgynszGNh0_cQph9yw.t7r_i05V1V6OaoeTUqhn8s_jsEa8hw0TNk1UtTGV9gjBM3IpHAInqXYjzt81eHXnk71sq5W5qjWG.V98Uv8597KXL.3J2r3vSDRCdphgACZeTMdiMIf8SkTUY3F_Q7BnH1oiikTViHa3kqJRnxv4VHG7kN2JS_ab7VxeuTYR03zlEbMjaYTOt2OYzFi1Vo3tMvGiZrg159FAo_oGDBl.pnrxy56bc2ANrmBCpBvmw8GXYndzIXqu79QqNh29iMjxOZam4UVwAVO5cQkGfyXiZ3TwVxa2XgexbXzETXPu4oDXji._47F_DmmnMt1mUi4MhX.jKGOtc9J4obKVVwB.HlRrpLJ7KcVcBB1TJZf1GSfLmHa3G.Upzr7IrQOaO9dM5HoAmi0xO9jAfRq92O6YUjZHwak0XjXujUuIBDv9IhUvsvz9svHW3HZg8xm_RmZL3TU60bjS80U4id6OdyNcTZnjEWr0Cs48tF38yzXSm9aFqw5ySUFh56UVnr_rp8uom8_SX4xGbuDF5WPnxmCuQ5N1rZdQKq7WapenT1iwKes_b9_Zy9BhZMOTII6WEGFqtaGx5FhxtuD0szJybIzX7_SWYunf5.t_ASXD5c3ySdcNUKRpmnM4c5IltAXGDqtNS8kqJ8aW.1VGRvn7ls19.9fZb96TYXOInk5KUsb5sYvCdz3_0DUzjGfNY_EMSRVhXuR3BdqBAMURu7lrM.LZ67YM9EfJOhTW9STTLweSW_VpYu7IHrYbnQZOt8HSN47bRL98Jba8V3l33U8Vw.cULMbZXC_T9ZvIRnmNe81Co6Un3EEELyq6Imp1YUXt0T8GDhWCSeDI8EZeK2E4twwQ1lVHCQ0kG5JpDyO_Hwq.k3g_0TakwVqiEKRBrdpZ6.RjpD7J0EQtCq5ym8R2hxx8IcOscVEFNGxc5QzuvCMZ01OUk30M7BUIuWMr1R6olMZ7RVlaQG4PeD7pInVBfZOtQDec3d0EzBYYvUx_lYQIpYkZsDN_6IRSLR4Kiipn69znverd2ntfxjk1Gieoe7Ip5O94USbAiCUuucicHEwioqg2o5aCO6hQdM5QwNQel_foGywTqq_KxVnMnyYWtTWvMQcQUP_jJNhaFy6OEz4vRDgYQvxV1GX8sM0.t46X7hyiocWBGgmEBvpGySbKJFh.plewIzU2HVxMH5GboYOOYMpDpPN78wdhi0pOLbd8LUvTF7fBbyTNpuncA6F2_pbSe0J8.hxhiYc6D4SwxNKiFIpHwbCeRvok6lED9BDMQa3B2xQgaERHpoplj37RUP84csKIYtT_zCzPWopyIW3db671XzW96ZrXZYgEwKuDkhpTcaNbmfYLGEwpxRhE6t4OpGli.u8UOFrgUN_CTw6hlo5LpMUKppAzcuhXUIOCuAjQywJrJFwhXj5rEdO.j0do6AtN7UOH4vWJNMvXjHzSoIt3vQkQHV3NkKb1HEf2Y122vp9HkuYsI.aNlSYYc1dbw8XEJJfz5TE3vB1YnerSTMVniLBGyzaPuFmx.BAy4hM6Trm.chXZOGBRzR85MqDCIkhKILUtC4Xpa6Ia8JReCgguYKlv0iRnA46jpByAChBEAzJsHQKeQeI5n2XyJ9g68fac.SQetQ2kDU7Jj1QpWma3aLPnZ8PS0iLElZT3tKiCMZamo9aAs8nSmq7gpSJlh1imDcs1t9e.y14Fei5qX.nDfozcZXA_vNeYaliThgxru7DO9XUVj.Ji0r6k2LmS3ZsU31kYlM7mJ8TC9t1TYOD9gwUhgAKtJkGhjGBfizEs",mdrd: "xFuN1YN_b10w_RN8lLS9qEdUGJbO4e8vRem34cWaB08-1739808959-1.2.1.1-3g3vpLRQQG5KenDvcFMu2_huBhw6BJpo5NaeSnYkAoAvW5QQK4TYEPd7CewUK7IME3w_bd.PoPDs4aPcLQPJpj5pKgB8.LiJLGkLOAh_1S73FWoumgNuXf8wnd1_.IZ1i06bsYnFxdyeBagNZ0LPintH9XM6M3VAaIs6OTsL74lvuLnJazSTS66HMTTcPlgPnrVZpl_8hkTe_61ZLW7QVr0IxqXH52NiecBwXSyu44dM2BsOGG.j0djRfZW.eHLBwGc79LmQxyhcWBx2gMu8M.dOTVg8lAhGv1b8itYwEpiLPNF5RX22aXpEPiwLVr863q_2arNotRrk_uDUZtrRthfVQ6yFcu6Wkf2oP_.q8l5hEdL8jcOqEPg9o8o4wORUlxXlyB5LOIBWnjksNRJ0ETysfVhocrCDQ23nld.iJonvPP5YtK5NyyDK0qa7P9Pw3yRvojlu3Jk1fqpI3YYPN1vyd0iGAIQ3..SUndpBQ1hcEQSQHMvPIQBGReZvFqpWwUHXR5AxODy6YnBByAo5dxSmBs_Owxdqt5cPjZwhlKi1aQk4MGBHSZue.N96kwEoAwSgcALJ5Wniy68zr96ZRhVi4qdOJ5Y_3Smel_Ru7BQowHAYA2DRS8oOMUbFB1jrJycwtCcfZ5FqLbGEhp8lJI6Pk2m3eDPpNRU.4_Rki.j6C42HnSgu637zaJ381W1.dwE23iuo.V2JDUGdSoI__ikm5jPR7y8tg4r9MFIkjO642ddBl9vYk6Px2D9iotGmsQWQFsTTvoNCcA8GCG6PzcV482AhLErCb9qTO7BpK17A5TnpCjqW8HrBqeIzRPhIc08DURZ5RCRAczJE.Avbs1jI3NnlJg6LEJqg23O1XK1JYZlMYaR0XQYCiNnVSgSWAOc541exes4qkDnEIgc.Hwt98hIXQToQvhgKC3N6A9LFwWAVvWPIeLwdIErBiHlTh7c3ig5otiYr9MPaJ0_hyw3Z.M_aivenTEAS6FKqxHDiw8B3Etbf.8G6Zgfp55MALh1VwvrtIJ6tFZYroDw4m0v5n7pIDNSpQm4h4V.uGsXT6OHc2OE9f3Q8gjYkn6FPfK6skfJ2WrxtTJAmbPxuUjrkqiQkYxQurm7a35DNLW0NskwJS.Yiby8GWNZ9rppNwE991FlHusoNzgjE59IK46fSUrv02vES.mdP0M8AWgF5qV7vA0AlZ84Ld7mn0TkMC0qYVAgaQMWSAVnppE2bAM1Jb8E55EnnxRnc5Fjd0TrK1HQNq38h0wadcTqOl_qnBZ5QG0rw78qDt0egaNDIzXlYELeN8p2JdvO8._BHQUNfa85i1oSFvNuTlL1Ay49a45enoTr4w.VD9.0iFP7bxRzd8qKZvworLHGDKNIfcIVIHK_RF0qozDoLVLvK.LSOVRHll9bFDoZBEvsJmWnhXPs5AHJTJ3QnvdCi98mcQNiSgJfYG0dyiL4wkCqTuhZFYX0jDjMY0jRNEeBpwo0yd9A_3u3.1MbaUpWIQNKGoMa9eLOOw9i5rMdS7HNETojgbt6419lxLPzuWHWAx8rXmQDH1mKEKI9IUOnNnHwOFGjG4rlrhF8CCD2IBt6BaE8BL0nYC3JfCtpflxYoMJPXqYIo4NXLNaIqGnDVeW1ByZ9MRYrAPtVaFQtkFpOe2SWwt3mLj.Qi.fR5s8YzHTq9C1NY2zmcg4tC8dfMCgfyOX3SU_.X5.z2oMyHXwgN83gTdclEemwwznPOxkABonyBwBdhY_Pmtv.69O3PYQut19ilJw5P2IQ_RfRFyUJbwn4H8F.iGwIkzcXp4UdZzUeDgwwyz8MBclLf741ySlbM2bX2fh.yyNEBNwK.cGc9bIJuDM5ZXfnXvXKiRClCi_QjknRWkfYeK.3bErEDgTE.sqO_CQ5hzsSF2dSGAiEcot6RjhMFy70vJGZjGFXtWpsV_xr0K72cElucHz6KK8ym34D0f8JbmKqqi8csh07v.v7S"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9137144b1caa3f7d';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/search?q=su%3AAtomic%20theory&__cf_chl_rt_tk=oQTNj_O8V39AbylY2Ot6Se0jVU_Qa2Aw6FBxgMiUm4Q-1739808959-1.0.1.1-frj4MTMju_TZZH6xKpZ1BoX6imWgA._BtT3zLcjX43Q" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>