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Scientific American 1915-01-16
1165 visits
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Scientific American 1915-01-23
2342 visits
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Scientific American 1915-01-30
1261 visits
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Scientific American 1915-04-17
1192 visits
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Scientific American 1915-05-15
1259 visits
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Scientific American 1915-05-22
1485 visits
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Scientific American 1915-05-29
1298 visits
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Scientific American 1915-06-12
1160 visits
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Scientific American 1915-06-19
1265 visits
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Scientific American 1915-06-26
1217 visits
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Scientific American 1917-04-28
1424 visits
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Scientific American 1918-04-27
1589 visits
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Scientific American 1918-06-01
1294 visits
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Scientific American 1918-06-15
1442 visits
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Scientific American 1918-06-22
1175 visits
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Scientific American 1918-06-29
1324 visits
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Scientific American 1918-10-19
1313 visits
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Scientific American 1919-03-15
1268 visits
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Scientific American 1919-06-14
1122 visits