• Scientific American 1882-01-14 1053 visits Scientific American 1882-01-14
  • Scientific American 1882-06-03 858 visits Scientific American 1882-06-03
  • Scientific American 1892-05-28 979 visits Scientific American 1892-05-28
  • Scientific American 1902-02-15 787 visits Scientific American 1902-02-15
  • Scientific American 1902-03-15 863 visits Scientific American 1902-03-15
  • Scientific American 1903-06-20 935 visits Scientific American 1903-06-20
  • Scientific American 1903-09-26 772 visits Scientific American 1903-09-26
  • Scientific American 1903-12-12a 1069 visits Scientific American 1903-12-12a
  • Scientific American 1920-10-23 1131 visits Scientific American 1920-10-23