Bond, A. Russell (Alexander Russell), 1876- · New York, The Century co. · leaf 296
■•:il 235 236 INVENTIONS OF THE GREAT WAR an air-breathing animal that prefers to stayon the surface, only occasionally diving under tohide from danger or to steal upon its prey.During the war, the German U-boats did notaverage three hours per day under the surface IBecause they were intended to…
Inventions
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