- Scientific American 1882-02-11 1424 visits
- Scientific American 1882-02-18 1491 visits
- Scientific American 1882-02-25 1156 visits
- Scientific American 1882-03-04 1073 visits
- Scientific American 1882-03-11 1620 visits
- Scientific American 1882-03-18 1181 visits
- Scientific American 1882-03-25 1238 visits
- Scientific American 1882-04-01 1333 visits
- Scientific American 1882-04-08 972 visits
- Scientific American 1882-04-22 1065 visits
- Scientific American 1882-04-29 1033 visits
- Scientific American 1882-05-06 1122 visits
- Scientific American 1882-05-13 1248 visits
- Scientific American 1882-05-20 1154 visits
- Scientific American 1882-05-27 1256 visits