as put down many years ago, and was in suchbad condition that an entirely new pavement had tobe substituted. The pile driver is mounted on a heavycart which can be moved about easily. A hoisting en-gine.raises the hammer, which weighs about 15 hun-dredweight and has a 14-inch chisel edge. The… … June 16, 1900. MANUFACTURE OF CAEBOEUNDUM AT NIAGABAFALLS. The method of making carborundum was discov-ered after careful research and a long series of experi-ments, in which the inventor, E. G. Ache-son, found that carbon and silicon couldbe made to combine to form the remark-able abradant which…
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