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and detailed description of the known productive oil fields is given. 

 Supplementing this material are special chapters on the character of the 

 oils, and the methods of transporting and refining them. A review o 

 conditions by counties completes the volume, which should be of much 

 service to those interested in oil, especially in Oklahoma. 



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The Examination of Prospect. By C. Godfrey Gunther. New 

 York: McGraw-Hill Book Co., 1913. Pp. 222; 79 figs. 

 $2.00 net. 

 A small handbook of mining geology.' The first chapter is devoted 

 to mining examinations proper, while succeeding chapters deal with the 

 geologic features of ore deposits, with examples drawn from a large num- 

 ber of localities. The book is well illustrated with diagrams taken from 

 geologic reports and with a few photographs. It should prove a valuable 

 book for the geologist in the field, where no access to the original reports 

 is to be had. The subject-matter, though brief, seems to be well organ- 

 ized and carefully condensed. The work is bound uniformly with the 

 publishers' series of field handbooks in flexible leather. 



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