California mines and minerals . about 1500 feet from the mill building, the ore is transportedto the latter in cars by rope haulage, the motive power being astationary motor at the mill. The ease with which the power may bebrought to the point of use constitutes an important point in itsfavor. A partial list of a number of the plants installed on this coast isgiven below, with class of work done. Only a few cases are noted,but it gives some idea of the advance made in the last five years. Mt. Gaines Mine, Hornitos, Cal. A 180-horse-power motor,driving an air compressor. A 30-horse-power motor,
California mines and minerals . about 1500 feet from the mill building, the ore is transportedto the latter in cars by rope haulage, the motive power being astationary motor at the mill. The ease with which the power may bebrought to the point of use constitutes an important point in itsfavor. A partial list of a number of the plants installed on this coast isgiven below, with class of work done. Only a few cases are noted,but it gives some idea of the advance made in the last five years. Mt. Gaines Mine, Hornitos, Cal. A 180-horse-power motor,driving an air compressor. A 30-horse-power motor, operating 10-horse-power motor, driving rock breaker. All alternating cur-rent three-phase motors made by the General Electric Co.; Generat-ing plant, Stanley Co. ELECTRIC POWER FOR MINING 85 Spring Creek Electric Power Co., Redding, Cal. Generatingplant of 200 horse-power. Three-phase alternating current. GeneralElectric Co., supplying power to mines in vicinity. LigJitner Mine. A 150-horse-power motor, driving mill. A. 100-horse-power motor, driving compressor. A 10-horse-powermotor, driving crusher. All two-phase, alternating current. Westing-house Electric and Mfg. Co. Griffith Co7i. G. M. Co., Diamond Springs, Cal. Generatingstation, 330-horse-power alternating current. A 40-horse-power 86 CALIFORNIA .MIXES AX I) .MIXKUALS motor for stamps. A 20-horse-power motor for rock crusher. A30-horse-po\ver motor for pump. A 200-horse-power motor forgeared hoist to lift 5,500 pounds at 600 feet per minute. This hoistis not yet installed. Westinghouse Electric and Mfg. Co. Nevada County Electric Power Co. Generating station contains2000-horse-power two-phase alternating current, Stanley machinery. It lights the towns of Grass Valley and NevadaCity, and distributes power to a number of the mines in those dis-tricts, among which are the following : North Star Mine. A 440-horse-power Stanley motor, geared toa Kix variable volume air compressor. Allison Ranch Mine. A
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