Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress (1901)
Boyd, James Penny, 1836-1910 · Philadelphia, A. J. Holman & co · leaf 312
n,and was cast on a hollow core, cooled by a stream of water passing throughit, by which means the metal nearest the bore was made the hardest andmost dense, and the tendency towards bursting was thus reduced to a mini-mum. General Rodman was also the inventor of the hollow cake powder,which… … GENERAL WINPIELD SCOTT. THE CENTURYS ARMIES AND ARMS 289 to be greater than at the instant of ignition. A large-grain powder, knownas mammoth powder, was afterwards devised by him to produce the sameresults. It will be seen later that this invention has rendered possiblethe powerful ordnance of the…
Progress · Inventions
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