on of staves bound together with wrought-iron bands, and boxed and breeched, 1790.
Colonel Bomford, of the United States ordnance department, invents a cannon called the columbiad, a long-chambered piece for projecting solid shot and shell with a heavy charge of powder, 1812.
West Point foundry established under special patronage of the government, 1817.
First contract of Gouverneur Kemble, president, for the West Point Foundry Association, for thirty-two 42-pounders, long guns, July 11, 1820.
First gun rifled in America at the South Boston Iron Company's foundry, 1834.
Cyrus Alger patents and makes the first malleable iron guns cast and converted in an oven, 1836.
Earliest piece of heavy ordnance cast at the South Boston foundry, a 10-in.
columbiad, under the supervision of Colonel Bomford; weight, 14,500 lbs.; shot, 130 lbs.; shell, 90 lbs.; charge of powder, 18 lbs., Sept. 6, 1839.
Character of gun iron definitely fixed by the metallo-dynamoter, a testing-mac