288 REVIEWS 



Mineral Resources of Southwestern Oregon. By J. S. Dtller. 

 U.S. Geol. Surv. Bull. No. 546. Pp. 146, figs. 23, plates 10. 

 After a brief introductory chapter describing the general topographic 

 and geologic features of southwestern Oregon, the writer proceeds to describe 

 the gold-quartz lode mines, copper mines and prospects, placer mines, and 

 the platinum, mercury, nickel, and coal resources of the region. 



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Oil and Gas Fields in Wayne and McCreary Counties, Kentucky. 



By M. J. MuNN. U.S. Geol. Surv. Bull. No. 579. Pp. 105, 



figs. 6, plates 6. Washington, 1914. 



About a third of the bulletin is devoted to the stratigraphy and larger 



structural features — the remainder is concerned with the history of production 



of oil, stratigraphy of the oil sands, and the details of the structure in the oil 



fields within the region. Structure contours are used to good advantage in the 



discussion. 



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Handhuch der Mineral Chemie, Vol. II. By C. Doelter. Pp. 

 848+xvi, figs. 37, plates 3. Dresden and Leipzig, 191 2-14. 

 Proceeding with the detailed discussion of the chemistry of minerals (see 

 review of Vol. I, Jour. Geol., XXI, 465-67) this volume is concerned with 

 quartz and the silicates. Practically all of the experimental work of recent 

 years is included in a condensed and thoroughly digested form, and this volume 

 should be exceptionally valuable as the chemistry of the silicates is only 

 vaguely understood at present, and active research is being prosecuted along 

 this line. Numerous tables of physical and chemical data are included, making 

 reference to the original literature unnecessary in most cases. The detailed 

 description of methods of synthesis which characterized Vol. I is continued 

 throughout this volume, making it of great value as a reference work to the 

 chemist as well as to the mineralogist. 



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Ore Deposits in the Sawtooth Quadrangle, Blaine and Custer Counties, 

 Idaho. By J. B. Umpleby. U.S. Geol. Surv. Bull. No. 580-K. 

 Pp. 221-49, plates 4. 



A report of the geology and ore deposits, based on a twelve days' recon- 

 naissance trip. Silver-lead, sUver, zinc, and gold veins have been worked 

 more or less in the region but present production is negligible. 



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