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1342 visits
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1456 visits
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1124 visits
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Scientific American 1882-03-04
1038 visits
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Scientific American 1882-03-11
1591 visits
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Scientific American 1882-03-18
1159 visits
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Scientific American 1882-03-25
1219 visits
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Scientific American 1882-04-01
1296 visits
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Scientific American 1882-04-08
954 visits
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Scientific American 1882-04-22
1031 visits
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Scientific American 1882-04-29
1011 visits
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1081 visits
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1192 visits
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1135 visits
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1240 visits
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1089 visits
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1730 visits
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1095 visits
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1210 visits
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1205 visits
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Scientific American 1882-07-08
1041 visits
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1058 visits
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Scientific American 1882-07-22
1242 visits
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Scientific American 1882-07-29
1094 visits
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1233 visits
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Scientific American 1882-08-12
1165 visits
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Scientific American 1882-08-19
1253 visits
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Scientific American 1882-08-26
1258 visits
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1197 visits
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1184 visits
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Scientific American 1882-09-16
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Scientific American 1882-09-23
1559 visits
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Scientific American 1882-09-30
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Scientific American 1882-10-07
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Scientific American 1882-10-14
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Scientific American 1882-10-21
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Scientific American 1882-10-28
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1204 visits
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1312 visits
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1404 visits
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1240 visits
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1259 visits
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Scientific American 1884-02-02
1159 visits
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Scientific American 1884-02-09
1633 visits
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1459 visits
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Scientific American 1884-02-23
1278 visits
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Scientific American 1884-03-01
1291 visits
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Scientific American 1884-03-08
1181 visits
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Scientific American 1884-03-15
1233 visits
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Scientific American 1884-03-29
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Scientific American 1884-04-05
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Scientific American 1884-04-19
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Scientific American 1884-04-26
1254 visits
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1191 visits
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Scientific American 1884-05-10
1194 visits
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Scientific American 1884-05-17
1927 visits
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Scientific American 1884-05-24
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Scientific American 1884-05-31
1330 visits
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Scientific American 1884-06-07
1466 visits
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Scientific American 1884-06-14
1186 visits
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Scientific American 1884-06-21
1238 visits
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Scientific American 1884-06-28
1172 visits
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Scientific American 1887-07-02
1199 visits
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Scientific American 1887-07-09
1200 visits
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Scientific American 1887-07-16
1084 visits
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Scientific American 1887-07-23
1197 visits
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Scientific American 1887-07-30
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Scientific American 1887-08-06
1166 visits
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Scientific American 1887-08-20
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Scientific American 1887-08-27
1280 visits