Items

Items

• 

  [D0805AAA], Letter from U.S. Geological Survey, Henry Clay Rizer to Thomas Alva Edison, January 2nd, 1908

  1908-01-02
• 

  [E1160BG], Letter from U.S. Geological Survey, Henry Clay Rizer to Thomas Alva Edison, April 29th, 1911

  1911-04-29
• 

  [E1160BV], Letter from U.S. Geological Survey, Henry Clay Rizer to Harry Frederick Miller, May 24th, 1911

  1911-05-24
• 

  [E1857BK], Letter from U.S. Geological Survey, Henry Clay Rizer to John Jarvis Butler, U.S. Navy Dept, December 2nd, 1918

  1918-12-02
• 

  [E1857BV], Letter from Henry Clay Rizer, U.S. Geological Survey to Thomas Alva Edison, December 12th, 1918

  1918-12-12
• 

  [E1922BV], Letter from U.S. Geological Survey, Henry Clay Rizer to William Henry Meadowcroft, June 16th, 1919

  1919-06-16
• 

  [MF36AL], Letter from Henry Clay Rizer, U.S. Geological Survey to William Henry Meadowcroft, June 11th, 1918

  1918-06-11