This folder contains correspondence relating to mines and ores to be bought, sold, worked, or tested. Some of the items deal with the mining interests of individuals and companies who wanted to lease or sell property to Edison or to have their ores tested. Also included are letters by Arthur E. Jenks, secretary and treasurer of the Sapphire Valley Co., and his brother, W. J. Jenks, regarding corundum ore; and a letter by John A. Edman, superintendent of the Diadem Mining Co., concerning gold ore. Most of the selected items received a significant response from Edison.
Approximately 20 percent of the documents have been selected. Some of the unselected letters contain marginal notes by Edison requesting samples of ores, indicating that he will send a surveyor to the property, or giving notice that a survey showed the mine to be unsuitable.
[D9333AAA], Letter from Sapphire Valley Co, Arthur E Jenks to Thomas Alva Edison, January 6th, 1893 1893-01-06
[D9333AAB], Letter from R A Weiss to Thomas Alva Edison, January 20th, 1893 1893-01-20
[D9333AAC], Letter from Sapphire Valley Co, Arthur E Jenks to Thomas Alva Edison, February 6th, 1893 1893-02-06
[D9333AAD], Letter from John Robert Proctor to Alfred Ord Tate, April 10th, 1893 1893-04-10
[D9333AAE], Letter from John A Edman, Diadem Mining Co to Thomas Alva Edison, April 12th, 1893 1893-04-12
[D9333AAF], Letter from G Milton Bair to Thomas Alva Edison, April 14th, 1893 1893-04-14
[D9333AAG], Letter from Sapphire Valley Co, William J Jenks to Alfred Ord Tate, May 9th, 1893 1893-05-09
[D9333AAH], Letter from George Richards (Ogden Iron Co) to Thomas Alva Edison, June 28th, 1893 1893-06-28
[D9333AAI], Letter from R D Casterline to Thomas Alva Edison, August 2nd, 1893 1893-08-02
[D9333AAJ], Letter from U.S. Geological Survey, Jay Baclus Woodworth to Thomas Alva Edison, November 15th, 1893 1893-11-15