10/21/1918 Harris, Warren Stone to Edison, Thomas Alva
(Hunt, Andrew Murray; Meadowcroft, William Henry) Submarines and submarine warfare; Ships, yachts, and other vessels
[X128C44]  Charles Hummel Collection, Wayne, N.J.: Edison Wartime Research Report No. 44: Water Brake [Sea Anchor] -- Hearing Torpedo &c.
[X128C44F; TAEM 0:0]
Courtesy of Charles Hummel.