- Scientific American 1882-02-11 1427 visits
- Scientific American 1882-02-18 1491 visits
- Scientific American 1882-02-25 1157 visits
- Scientific American 1882-03-04 1073 visits
- Scientific American 1882-03-11 1621 visits
- Scientific American 1882-03-18 1181 visits
- Scientific American 1882-03-25 1238 visits
- Scientific American 1882-04-01 1336 visits
- Scientific American 1882-04-08 972 visits
- Scientific American 1882-04-22 1065 visits
- Scientific American 1882-04-29 1034 visits
- Scientific American 1882-05-06 1122 visits
- Scientific American 1882-05-13 1249 visits
- Scientific American 1882-05-20 1154 visits
- Scientific American 1882-05-27 1256 visits
- Scientific American 1882-06-03 1125 visits
- Scientific American 1882-06-10 1798 visits
- Scientific American 1882-06-17 1118 visits
- Scientific American 1882-06-24 1268 visits
- Scientific American 1882-07-01 1258 visits
- Scientific American 1882-07-08 1068 visits
- Scientific American 1882-07-15 1090 visits
- Scientific American 1882-07-22 1295 visits
- Scientific American 1882-07-29 1172 visits
- Scientific American 1882-08-05 1304 visits
- Scientific American 1882-08-12 1191 visits
- Scientific American 1882-08-19 1317 visits
- Scientific American 1882-08-26 1289 visits
- Scientific American 1882-09-02 1225 visits
- Scientific American 1882-09-09 1240 visits
- Scientific American 1882-09-16 1365 visits
- Scientific American 1882-09-23 1598 visits
- Scientific American 1882-09-30 1366 visits
- Scientific American 1882-10-07 1468 visits
- Scientific American 1882-10-14 1417 visits
- Scientific American 1882-10-21 2402 visits
- Scientific American 1882-10-28 1355 visits
- Scientific American 1882-11-04 1260 visits
- Scientific American 1882-11-11 1347 visits
- Scientific American 1882-11-18 1435 visits
- Scientific American 1882-11-25 1345 visits
- Scientific American 1882-12-02 1329 visits
- Scientific American 1882-12-09 1533 visits
- Scientific American 1882-12-16 1388 visits
- Scientific American 1882-12-23 1428 visits
- Scientific American 1882-12-30 1440 visits
- Scientific American 1884-01-05 1491 visits
- Scientific American 1884-01-12 1430 visits
- Scientific American 1884-01-19 1258 visits
- Scientific American 1884-01-26 1279 visits
- Scientific American 1884-02-02 1184 visits
- Scientific American 1884-02-09 1655 visits
- Scientific American 1884-02-16 1485 visits
- Scientific American 1884-02-23 1298 visits
- Scientific American 1884-03-01 1312 visits
- Scientific American 1884-03-08 1206 visits
- Scientific American 1884-03-15 1256 visits
- Scientific American 1884-03-22 1188 visits
- Scientific American 1884-03-29 1195 visits
- Scientific American 1884-04-05 1856 visits
- Scientific American 1884-04-12 1182 visits
- Scientific American 1884-04-19 1205 visits
- Scientific American 1884-04-26 1274 visits
- Scientific American 1884-05-03 1218 visits
- Scientific American 1884-05-10 1218 visits
- Scientific American 1884-05-17 1947 visits
- Scientific American 1884-05-24 1190 visits
- Scientific American 1884-05-31 1348 visits
- Scientific American 1884-06-07 1484 visits
- Scientific American 1884-06-14 1210 visits
- Scientific American 1884-06-21 1258 visits
- Scientific American 1884-06-28 1193 visits
- Scientific American 1887-07-02 1218 visits
- Scientific American 1887-07-09 1219 visits
- Scientific American 1887-07-16 1110 visits
- Scientific American 1887-07-23 1223 visits
- Scientific American 1887-07-30 1231 visits
- Scientific American 1887-08-06 1192 visits
- Scientific American 1887-08-20 1223 visits
- Scientific American 1887-08-27 1300 visits