Popular science monthly . CABLE-ROPE g^TORAGE. The crew get into the compartments and release the buoys. Until their distress signals areanswered, they receive a supply of fresh air through the hose attached to the buoys. On the arrivalof a salvaging ship, the submarine is hauled up by means of the cables and the men are freed 805 806 Timing Popular Science Monthly Automobile Speed Demonswith a New Device ^-<trfT7^-^_,

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872