- Scientific American 1877-11-03 1633 visits
- Scientific American 1882-06-10 1797 visits
- Scientific American 1897-10-23 1120 visits
- Scientific American 1897-11-13 1180 visits
- Scientific American 1897-12-18 1147 visits
- Scientific American 1903-03-07 1170 visits
- Scientific American 1903-09-26 1014 visits
- Scientific American 1903-12-12a 1461 visits
- Scientific American 1919-06-14 1390 visits