This folder contains correspondence, agreements, and other documents relating to the business of the Edison Co. for Isolated Lighting, which sold and installed small power plants for the lighting of single buildings. Much of the correspondence is by Frank S. Hastings, secretary of the company, and by Jonathan H. Vail, general superintendent. Included also are lists of isolated lighting plants and a cost estimate for a plant at Cornell University. Related material can be found in the Primary Printed Series and in the Edison Co. for Isolated Lighting Bulletins (Company Records Series).

Approximately 70 percent of the documents have been selected. The following categories of documents have not been selected: routine notices for meetings of the board of directors; routine intraoffice communications; accounts.