Ch. 1: Gold and Silver in 1915

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	768	MINERAL RESOURCES, 1915----PART I.

	The figures in this table result from cooperation of the United States Bureau of the Mint and the United States Geological Survey and are agreed upon after conference and adjustment between the two bureaus. They are, therefore, final for both. The totals are based on bullion deposits in the United States mints and assay offices and on returns to the Bureau of the Mint from the smelting and refining companies. The distribution is adjusted by information collected by the United States Geological Survey directly from the producing mines and tabulated for the mines reports later discussed. The data giving the total production, and in part the distribution, are obtained from records of (1) the unrefined domestic gold and silver deposited in United States mints and assay offices, (2) the domestic gold and silver in fine bars reported by private refineries, and (3) the unrefined domestic gold and silver contained in ores and matte exported for reduction. The last item is of small relative importance. Increase and decrease in the production of gold and silver in the several States and outlying possessions, as compared with the output of 1914, are shown in the following table: Increase or decrease in production of gold and silver in the United States in 1915.



	In addition to the production of gold and silver by domestic smelters and refiners from domestic sources in 1915, amounting to 4,887,602 fine ounces of gold and 74,961,075 fine ounces of silver, these plants produced 855,728 fine ounces of gold and 50,987,199 fine ounces of silver from foreign ores. These figures represent in-

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