[The following note describes a series of notebooks and has no document records attached to it. For that reason, a "no Documents found" message will appear if the "List Documents" button at the bottom of the note is used. To see the records in the notebooks described here, use the "Which Series Notes?" button to enter the Series Notes or use the "Next Text" button to move to the first item in the series.]

These three notebooks were used during the period February 1917-March 1918 for experimental work for the U.S. Navy and other wartime research performed at the behest of Edison. Other authors include E. Rowland Dawson, William Deans, William A. Hayes, Absalom M. Kennedy, and Henry G. Wolfe. Some of the entries relate to night visibility tests to help rangefinder users develop more sensitive night vision for spotting submarines. Other experiments pertain to the use of sound recording for submarine and torpedo detection. There are also notes on experiments with kite rudders for Navy ships. The results of this research were incorporated into letters and reports submitted by Edison to Secretary of the Navy Josephus Daniels that can be found in the Naval Consulting Board and Wartime Research Papers (Special Collections Series), Josephus Daniels Papers (Library of Congress), and the Edison Wartime Research Reports (Charles Hummel Collection).

Courtesy of Thomas Edison National Historical Park.