This folder contains correspondence, reports, and other documents relating to the operations of the West Orange laboratory. Included is a list of proposed research projects in Edison's hand. Many of the documents are by Charles Batchelor, superintendent of the laboratory, and Arthur E. Kennelly, chief electrician.

Approximately 60 percent of the documents have been selected. The following categories of documents have not been selected: letters of transmittal and acknowledgement; routine requests to conduct tests; routine correspondence about orders and shipments. Also not selected are monthly meter readings for the electrical system at the laboratory, the Edison Phonograph Works, and Llewellyn Park.