- Scientific American 1882-01-14 1398 visits
- Scientific American 1882-06-03 1262 visits
- Scientific American 1892-05-28 1598 visits
- Scientific American 1902-02-15 1600 visits
- Scientific American 1902-03-15 1370 visits
- Scientific American 1903-06-20 1542 visits
- Scientific American 1903-09-26 1184 visits
- Scientific American 1903-12-12a 1693 visits
- Scientific American 1920-10-23 1455 visits