Wire-Roping the German Submarine

The Barrage that Stopped the U-boat

By N/A
1920, John A. Roebling's Sons Co., Trenton
37 pages, map

Descripton: Extracts from an article by Captain Reginald R. Belknap first published in the Scientific American, March 15-22, 1919. Published by the company which manufactured the wire rope.