Bond, A. Russell (Alexander Russell), 1876- · New York, The Century co. · leaf 296
rger^ until it attained a length of over 300feet and its speed was increased to 12 knotswhen submerged and 18 knots on the surface. Figs. 16 to 18 show the construction of oneof the early U-jboats. The later boats werebuilt after the same general plan, but on abigger scale. It is not always safe to…
Inventions
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