This folder contains correspondence and other documents relating to mining and ore milling. Included are items pertaining to the purchase of ore milling machinery and the operation of the plant at Edison, N.J. There is also a letter about a new steel-making process.
Approximately 30 percent of the documents have been selected. The following categories of documents have not been selected: routine inquiries relating to mines and to ore samples sent to Edison for testing; routine correspondence regarding supplies and company meetings. Courtesy of Thomas Edison National Historical Park.