• Scientific American 1882-01-14 1153 visits Scientific American 1882-01-14
  • Scientific American 1882-06-03 994 visits Scientific American 1882-06-03
  • Scientific American 1892-05-28 1174 visits Scientific American 1892-05-28
  • Scientific American 1902-02-15 996 visits Scientific American 1902-02-15
  • Scientific American 1902-03-15 1023 visits Scientific American 1902-03-15
  • Scientific American 1903-06-20 1113 visits Scientific American 1903-06-20
  • Scientific American 1903-09-26 890 visits Scientific American 1903-09-26
  • Scientific American 1903-12-12a 1244 visits Scientific American 1903-12-12a
  • Scientific American 1920-10-23 1234 visits Scientific American 1920-10-23