will be seen that with the Gathmann regu- value in actual trial. lar 18-inch torpedo shell carrying 600 pounds of de- A few words more to explain just what is meant by sensitized guncotton, total weight only 1,800 pounds, a the Gathmann system. The problem has not been velocity of about 2,100 foot… … BEAB VIEW OF TARGET CONSISTING OF 10 INCH PLATE BACKED BY XHE TARGET AFTER BEING STRUCK BY GATHMANN 12-INCH SHELL, CONTAINING 800 POUNDS 07 WET GUHC0TTON. 180 TONS OF EARTH. H901 SCIENTIFIC AMERICAN, INC.
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