This notebook was used by Absalom M. Kennedy during October-November 1917 for notes on experimental work for the U.S. Navy performed under the direction of Edison during World War I. The experiments, which relate to submarine and torpedo detection, focus on how best to encase and tow a detection receiver behind a ship. The tests were conducted aboard the USS Hydraulic in Long Island, and efforts were made to avoid interference from other vessels. Included is a transcription of a telegram about the experiments sent to Edison in Washington, D.C. The notes indicate that James M. Burns, John A. Hanley, Joe Meilner, and Sherwood T. (Sam) Moore assisted with the work. The front cover is labeled "Experiments #6 From Oct. 4 to Nov. 2, 1917." The pages are unnumbered. Approximately 120 pages have been used. Courtesy of Thomas Edison National Historical Park.