• Scientific American 1882-01-14 1120 visits Scientific American 1882-01-14
  • Scientific American 1882-06-03 946 visits Scientific American 1882-06-03
  • Scientific American 1892-05-28 1119 visits Scientific American 1892-05-28
  • Scientific American 1902-02-15 936 visits Scientific American 1902-02-15
  • Scientific American 1902-03-15 971 visits Scientific American 1902-03-15
  • Scientific American 1903-06-20 1063 visits Scientific American 1903-06-20
  • Scientific American 1903-09-26 853 visits Scientific American 1903-09-26
  • Scientific American 1903-12-12a 1199 visits Scientific American 1903-12-12a
  • Scientific American 1920-10-23 1208 visits Scientific American 1920-10-23