. Journal of electricity . CEMENT OIL FIELDS A battery of motors in the plant of the California Portland Cement Not only in the production of oil is electricity used extensively, but Company at Colton. California. Construction work in the West also in its dehydration. This picture sho\vs the dehydrating plant makes a large demand for Portland cement. at La Brea, MILLING Twenty thousand horsepower in motors are installed in this Magna Mill of the Utah Copper Company at Garfield, Utah. A great deal of electricity is used in the metal-mining activities of this region.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectricity, bookyear