TROL OF BULKHEAD DOORS ON WAR- sents a Parrott 100-pounder of 1862, superimposed upon breech over the powder chamber by shrinking thereon SHIPS. a modern 100-pounder, or to be correct, a 6-inch 50-cali- an iron hoop. The bore of the gun was 6.4 inches. It Electricity has now finally supplanted… … plement of wa- throughout all ter-tight doors, the various cal- electrically ibers that con- OUR NAVAL GUNS IN THE CIVIL WAR AND TO-DAY. controlled. The stitute the new system is batteries of naval ships, but it is sufficient to compare with a charge of 10 pounds of powder it fired a 100- entirely…
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