The principal silver deposits of the world are controlled politically by the United States, Mexico, and Great Britain, these three controlling 85 per cent. of the total production in 1913.

Platinum.

—Platinum is controlled chiefly by Russia, being produced otherwise in important quantity only in Colombia. American interests predominate in Colombia. Before the war there was an interlocking of the interests of the platinum refiners of the United States, Germany, and Great Britain, with the German influence very marked.

Fig. 23.—The control according to political sovereignty (territorial ownership) of the world’s mineral production.
(Facing page 540)

POLITICAL CONTROL (TERRITORIAL)

Prepared by: John E. Orchard,
Assistant Mine Economist,
U.S. Bureau of Mines, May 1, 1919

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