- Scientific American 1918-01-05 1267 visits
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- Scientific American 1918-06-22 1391 visits
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- Scientific American 1918-08-03 1702 visits
- Scientific American 1918-10-05 1441 visits
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- Scientific American 1918-11-02 1339 visits
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- Scientific American 1919-02-08 interior photo 1527 visits
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- Scientific American 1919-05-03 1363 visits
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- Scientific American 1919-06-14 1390 visits
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- Scientific American 1920-02-07 1346 visits
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- Scientific American 1920-02-28 1447 visits
- Scientific American 1920-03-13 1173 visits
- Scientific American 1920-03-27 1602 visits
- Scientific American 1920-07-10 1101 visits
- Scientific American 1920-07-17 1202 visits
- Scientific American 1920-07-24 1169 visits
- Scientific American 1920-07-31 1195 visits
- Scientific American 1920-08-07 1433 visits
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- Scientific American 1920-08-21 1370 visits
- Scientific American 1920-08-28 1513 visits
- Scientific American 1920-09-04 1796 visits
- Scientific American 1920-09-11 1269 visits
- Scientific American 1920-09-18 1366 visits
- Scientific American 1920-09-25 1505 visits
- Scientific American 1920-10-02 2505 visits
- Scientific American 1920-10-09 1380 visits
- Scientific American 1920-10-23 1331 visits
- Scientific American 1920-10-30 1438 visits
- Scientific American 1920-11-06 1222 visits
- Scientific American 1920-11-13 1180 visits
- Scientific American 1920-11-20 1143 visits
- Scientific American 1920-11-27 1235 visits
- Scientific American 1920-12-04 1230 visits
- Scientific American 1920-12-11 1229 visits
- Scientific American 1920-12-18 1399 visits
- Scientific American 1920-12-25 1173 visits
- Scientific American 1921-01-01 1575 visits
- Scientific American 1921-01-08 1245 visits
- Scientific American 1921-01-15 1204 visits
- Scientific American 1921-01-22 1184 visits
- Scientific American 1921-01-29 1244 visits
- Scientific American 1921-02-05 1219 visits
- Scientific American 1921-02-12 1205 visits
- Scientific American 1921-02-19 1173 visits
- Scientific American 1921-02-26 1194 visits
- Scientific American 1921-03-05 1302 visits
- Scientific American 1921-03-12 1220 visits
- Scientific American 1921-03-19 1448 visits
- Scientific American 1921-03-26 1200 visits
- Scientific American 1921-04-02 1193 visits
- Scientific American 1921-04-09 1075 visits
- Scientific American 1921-04-16 1130 visits
- Scientific American 1921-04-23 1214 visits
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