- Scientific American 1877-11-03 1874 visits
- Scientific American 1882-06-10 2032 visits
- Scientific American 1897-10-23 1299 visits
- Scientific American 1897-11-13 1335 visits
- Scientific American 1897-12-18 1287 visits
- Scientific American 1903-03-07 1380 visits
- Scientific American 1903-09-26 1166 visits
- Scientific American 1903-12-12a 1672 visits
- Scientific American 1919-06-14 1672 visits