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Scientific American, Vol. 68, No. 7 (1893) (1893)

leaf 3

An illustration from Scientific American, Vol. 68, No. 7 (1893), 1893, leaf 3
(FEBRUARY 18, 1893. 100 THE HARBOR DEFENSE RAM KATAHDIN. (Continued from first page.) 3 inches thick and 5 feet deep, extends below the knuckle. tained with a translucency comparable both below and about the knuckle, … only ten per cent had the lower knots, and the impact of the ram is limbs equal in length, thirty-five per designed to be equivalent to the blow of a hammer weighing over two thousand tons moving The re- at this rate of speed—a blow which, if fairly delivered, would crash through the sides of any…

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