Items

• [D8416BMY], Letter from Samuel Insull to Science, May 2nd, 1884
  1884-05-02
• [LB009219], Letter from Thomas Alva Edison to Science, John Michels, October 25th, 1881
  1881-10-25
• [LB009220A], Letter from Samuel Insull to Science, John Michels, October 25th, 1881
  1881-10-25
• [LB012255], Letter from Samuel Insull to John Michels, Science, May 9th, 1882
  1882-05-09
• [LB021073], Letter from Samuel Insull to Science, Charles L Condit, November 4th, 1885
  1885-11-04
• [LB022427], Letter from Thomas Alva Edison to A D C Hodges, Science, September 21st, 1886
  1886-09-21
• [SM033003], Letter from Thomas Alva Edison to Science, May 21st, 1881
  1881-05-21