Page:Popular Science Monthly Volume 91.djvu/857

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The Mother-Submarine and Its Baby

���The miniature vessel is carried in a kind of pocket in the large submarine in much the same way that a baby kangaroo is carried in its mother's pouch. When the mother sub- marine encounters a piece of work in shallow water, or which is for any reason difficult for it to accomplish on account of its size, it releases the baby vessel, which is armed and manned for the task. Its work accomplished, the baby returns to its mother

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