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Imperial Institute: Monographs on Mineral Resources with Special Reference to the British Empire: Silver Ores

    Abstract

    This addition to the useful Imperial Institute Monographs gives details and statistics of the sources of silver throughout the world. In 1918 the British Empire produced nearly one-fifth of the world's supply, Canada being responsible for the larger part of this amount. The United States headed the list of producers during the war period, but has now been passed again by Mexico. About two-thirds of the world's silver comes from base metal ores, and much of the remainder is obtained from ores worked primarily for gold, so that silver is mainly a by-product of other metallurgical operations. The extraction and uses of silver are dealt with only very briefly in this monograph, and some information as to the metallurgical processes employed in the most important mining regions would have added to its value. This remark applies particularly to the account of the rich and metallurgically interesting Cobalt district of Ontario, which is responsible for the greater part of the Canadian production. These monographs provide much information in a handy form.

    Imperial Institute: Monographs on Mineral Resources with Special Reference to the British Empire: Silver Ores.

    Dr.

    H. B.

    Cronshaw

    By. Pp. ix + 152. (London: John Murray, 1921.) 6s. net.

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