• Scientific American 1882-01-14 1071 visits Scientific American 1882-01-14
  • Scientific American 1882-06-03 880 visits Scientific American 1882-06-03
  • Scientific American 1892-05-28 1016 visits Scientific American 1892-05-28
  • Scientific American 1902-02-15 836 visits Scientific American 1902-02-15
  • Scientific American 1902-03-15 890 visits Scientific American 1902-03-15
  • Scientific American 1903-06-20 973 visits Scientific American 1903-06-20
  • Scientific American 1903-09-26 796 visits Scientific American 1903-09-26
  • Scientific American 1903-12-12a 1112 visits Scientific American 1903-12-12a
  • Scientific American 1920-10-23 1155 visits Scientific American 1920-10-23