FORTUNES IN MINERALS—Simple Tests and How to Make Them. Ion L. Idriess. 222 pages. Angus and Robertson, Ltd., Sydney, Australia. 1941. Price $2.50.

PRACTICAL GEMMOLOGY-A Study of the Identification of Gem-Stones, Pearls, and Ornamental Minerals, by Robert Webster. vi+180 pages, with four half-tone plates and fifty-four figures. N. A. G. Press Ltd., London (1941).

MINERALS OF ARIZONA by F. W. Gailbraith. Arizona Bureau of Mines, Geological Series No. 15, Bulletin 149 (1941). Price 50 cents (free to residents of Arizona).

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