Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 102
d fifty feetif they are of thelarge type, as this hasbeen found to leavethe right margin ofsafety. When running sub-merged, the swish ofa ships propellers inthe vicinity can beheard inside the sub-marine, and when thecaptain is thus warnedof the enemys pres-ence he can rest in peace on a clean bed… … Copyright by Enrique Muller, Ir
Children's literature
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