This folder contains correspondence and other documents relating to the business of the Edison Manufacturing Co. Included are letters from company officials regarding expansion of sales markets and other internal policy matters; correspondence pertaining to the Edison-Lalande battery; and letters concerning the manufacture of a new static voltmeter developed by Arthur E. Kennelly. Also included are construction specifications for company buildings to be built at Silver Lake, N.J.

Approximately 40 percent of the documents have been selected. The following categories of documents have not been selected: routine letters regarding shipments, supplies, and orders, many of them dealing with batteries for the Edison phonoplex system; letters of transmittal and acknowledgement; duplicate copies of selected documents. Also not selected is correspondence regarding storage battery experiments conducted by Victor H. Ernst in Jersey City, N.J.