The submarine in war and peace; its developments and its possibilities (1918)
Lake, Simon, 1866-1945 · Philadelphia, London, J.B. Lippincott company · leaf 294
ey neednot feel any vertical motion of the sea even in the stormiestweather. I have found that such motion actually existsforty feet and more below the surface when the groundswell is deep. Of course, the submarine must rise to the surface fromtime to time in order to draw in fresh air to fill her…
Submarines (Ships)
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
