. Hardware merchandising January-June 1898 . he motive power of the works will consistof a turbine water-wheel of 125-horse-power,to be used to generate electricity, and alsorun the air compressors, of which there willbe four. The air compressors will run thediamond drills, and will obviate the use ofsteam. The mines will be furnished withelectric lights, and automatic conveyors willbe used in place of the ordinary mine carsto bring the ore to the surface. The cablefor this work is of steel wire, 2,000 feet inlength. The company has given the ore athorough test, and has had men constantlyemplo
. Hardware merchandising January-June 1898 . he motive power of the works will consistof a turbine water-wheel of 125-horse-power,to be used to generate electricity, and alsorun the air compressors, of which there willbe four. The air compressors will run thediamond drills, and will obviate the use ofsteam. The mines will be furnished withelectric lights, and automatic conveyors willbe used in place of the ordinary mine carsto bring the ore to the surface. The cablefor this work is of steel wire, 2,000 feet inlength. The company has given the ore athorough test, and has had men constantlyemployed at the mines, which are at PineyCreek, getting out samples for analysis fromvarious parts of the outcroppings. EngineerWeist has a force of men at work surveyingand laying out a road from the mines to therailroad. Before the season is over thecompany expects to have 500 men em-ployed. There is quite a boom in building inWindsor Mills, Que. XJXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIXIX ARMSTRONG MANFG. CO. I. GAS steaH ft xixixixixixixixixf PKlLJUCrUK 1. HARDWARE AND METAL 31 HUMIDITY OF HOUSE HEATING. ONE of the most conspicuous featuresof our American houses, thatforeigners who happen to be in theUnited States in winter are sure to remark,is the high temperature which is thoughtnecessary in dwellings and public buildings,and the excessive dryness of the air is alsoa matter of observation and comment. The injurious effects of this dryness, andthe relation which it bears to the subject ofwarming and ventilation, forms the subjectof a paper recently read before the AmericanPublic Health Association, by Dr. HenryBarnes. Except in certain localities notedfor their dry climate, the mean relativehumidity of the air in the United States liesbetween sixty and seventy per cent., accord-ing to the meteorological scale in which zeromeans absence of moisture, and ioo corres-ponds to complete saturation. This meanproportion of moistu
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