This folder contains correspondence and other documents concerning a variety of legal matters. The selected documents cover the period 1902-1910. Among the correspondents are Edison; Frank L. Dyer of the Legal Department; Walter S. Mallory, vice president of the Edison Portland Cement Co.; and Edward Dinan, chemist. Included are letters pertaining to the technical development and operation of Edison's long kilns; to cement-related patents assigned to the Edison Ore Milling Syndicate, Ltd.; and to a proposed infringement suit against the Atlas Portland Cement Co. Also included is correspondence relating to the progress of litigation against the Allis-Chalmers Co. and to a possible deposition by Edison regarding the use of pulverized coal in cement kilns.

Less than 10 percent of the documents have been selected. Among the items not selected are letters, memoranda, and reports regarding patent research; printed patents; a draft complaint and affadavit for use in the proposed case against the Atlas company; letters of transmittal and acknowledgment; registered mail receipts; and documents that duplicate the information in selected material.