11/07/1892 Edison, Thomas Alva to Babcock and Wilcox
(Ogden Ore Separating Plant) Production difficulties and adjustments; Engines, boilers, prime movers
[CJ005]  Company Records Series -- New Jersey and Pennsylvania Concentrating Works -- Administrative and Financial Records: Correspondence (1892)
[CJ005ACP; TAEM 149:531]
Courtesy of Thomas Edison National Historical Park.