- Scientific American 1925-04 1302 visits
- Scientific American 1913-12-27 1015 visits
- Scientific American 1914-07-04 1278 visits
- Scientific American 1914-11-14 1032 visits
- Scientific American 1914-12-12 1185 visits
- Scientific American 1916-09-30 1053 visits
- Scientific American 1917-06-23 1202 visits
- Scientific American 1917-08-11 973 visits
- Scientific American 1918-11-30 1355 visits
- Scientific American 1925-03 1150 visits