Industrial Niagara 



as to be almost unbelievable. The remarkable development of 1912 

 metallurgy in recent years has been made possible only by the gass,z 

 modern grinding wheel, this being especially true of the copper, 

 bronze, brass and aluminum industries. The automobile indus- 

 try also has been greatly benefitted by it, for the cranks, shafts, 

 special alloy steels and the roller and ball bearings for this 

 intricate latter-day invention could never have been perfected 

 without it. In dentistry it has been a wonderful factor, having 

 made filling a comparatively easy art. Its importance will be 

 realized when it is stated that it is now manufactured in sizes 

 ranging from a pin's head to six feet in diameter. 



The uses of modern abrasives are so multitudinous, in fact, 

 as to defy enumeration. They are used in the sharpening of 

 saws and knives in the lumber industry; in the manufacture of 

 porcelain, cut glass, agate ware, fine lenses, tumblers, boots and 

 shoes, car wheels, and steel rails; wagons, plows, harvesters, and 

 other farm implements; radiators, tools of every character; 

 phonograph and graphophone needles ; paper pulp ; fountain pens 

 and combs; surgical instruments; typewriter rolls; leather goods; 

 German silver, rubber, celluloid and mother-of-pearl articles; in 

 the polishing of granite, marble, onyx and terrazzo; in the cut- 

 ting of carbon and graphite; in the hulling of rice; in the grinding 

 of rollers for the manufacture of the best qualities of chocolate 

 and cereal foods; in the tanning trades; in smoothing concrete 

 and cleaning cement; in the finishing of automobile tires, and in a 

 myriad other ways. 



The influence of Niagara Falls' power on the production and 

 price of electric storage batteries is too well known to need 

 repetition, the price notwithstanding the enormously increased 

 demand having decreased twenty-five per cent in the last five 

 years. At Niagara Falls is located in the United States Light 

 and Heating Company's establishment, the largest electric stor- 

 age battery plant in the world. What more striking evidence of 



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