This folder contains correspondence and other documents relating to the design and operation of automobiles and the use of storage batteries in electric vehicles. Among the items for 1909 are letters by Edison, Frank L. Dyer, J. H. Vail, and Levi C. Weir. Also included are items pertaining to the Lansden Co., a maker of electric vehicles in which Edison possessed a controlling interest. Documents dealing with Edison's personal automobiles include correspondence with Cryder & Co., importer of Edison's Mors car.

Approximately 40 percent of the documents have been selected. The items not selected include correspondence with Cryder & Co. and others regarding orders, bills, and automobile parts; letters of transmittal; and documents that duplicate information in selected material.

Account sheets that pertain to the upkeep of Edison's automobiles can be found in D-09-31 (Glenmont).