Items

• [CJ503AAI], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, August 22nd, 1901
  1901-08-22
• [CJ503AAW], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, September 6th, 1901
  1901-09-06
• [CJ503ABA], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, September 23rd, 1901
  1901-09-23
• [CJ503ABS], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, October 15th, 1901
  1901-10-15
• [CJ506AAR], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, October 19th, 1904
  1904-10-19
• [D0124AAJ], Telegram from David Talbot Day to Thomas Alva Edison, September 12th, 1901
  1901-09-12
• [D0225AAB], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, August 16th, 1902
  1902-08-16
• [D0225AAC], Letter from U.S. Geological Survey, David Talbot Day to John F Randolph, August 25th, 1902
  1902-08-25
• [D8543C], Letter from David Talbot Day to Thomas Alva Edison, April 11th, 1885
  1885-04-11