REVIEWS 399 



genetic and mineralogic; (IV) petrography of the thermally and pneu- 



matolytically altered rocks. 



The work should be of great value, as it is the most complete that 



has come to the reviewer's hands, and the field is one of great and growing 



importance. As a pioneer work it will doubtless need additions in the 



near future, but for the present it fills a long-felt want. 



A. D. B. 



Mineral Resources of New Mexico. By Fayette A. Jones. Bull. 



i, State School of Mines Mineral Resources Survey of New 



Mexico. Socorro, 1915. Pp. 77, map 1. 



A catalogue of the various mineral products that the state is thought 



to be capable of producing. The entire lack of statistics of production 



detracts from the value of the book, and the potential possibilities of 



the state in the matter of resources not now being exploited is left largely 



to the optimism of the reader. 



A. D. B. 



A Gold-Platinum-Palladium Lode in Southern Nevada. By Adolph 



Knopf. U.S. Geol. Survey, Bull. 260-A. Washington, 1915. 



Pp. 18, pi. 1. 



Describes briefly the occurrence of a gold-platinum-palladium vein 



in dolomite in the Boss mine in the southern point of Nevada. The 



claim was first worked for copper, as the gold, occurring in black particles, 



was not readily recognizable as such. The veins are strongly oxidized 



and present development does not reveal conclusive evidence as to the 



origin or the original mineralogical character of the vein. The deposit 



apparently adds a new type to the list of American ore deposits. Values 



up to Pt. 99 oz., Au. 1 1 1 oz., and Pd. 16 oz. are reported. 



A. D. B. 



Guidebook of the Western United States. Part C, The Santa Fe 



Route. By N. H. Darton, and Others. U.S. Geol. Survey, 



Bull. 613, 1915. Pp. 194, pis. 42, figs. 40, maps 24. 



This bulletin is in all respects a mate to the preceding, organized 



in the same effective way. The many simple structure sections which 



accompany this work, and which give even the most casual reader a fair 



conception of the geologic structure along the route, are especially to 



be commended. 



