The Only American Book Giving a Description and Bibliography 

 of Each American Oil and Oas Field. 



Principles of Oil and Gas Production 



By Roswku, 11. Johnson, Professor of Oil and Oas Production, University 

 of Pittsburgh, and L. G. Huntley, Lecturer on I >il and Gas 



Fields, University of Pittsburgh, 

 This book is a timely answer to the widespread questioning interest of 

 investors as to what the geologist can do for the oil and gas operators. 



It includes a general discussion of the Norili American fields with a bibli- 

 ography of each. The management of oil properties is discussed, and some 

 new graphic methods proposed. 



386 pages, 6x9, illustrated. Cloth, $3.75 net. 



USEFUL MINERALS AND RARE ORES 



Practical Instructions in the Search for, and the Determination of the Useful 



Minerals, including the Rare Ores. 

 Br Alexander McLeod. 



Furnishes severely simple, but fully dependable means by which anyone can 

 determine the useful minerals. It is for the most part based on the author's 

 experience, extending over forty years of active work in quest of minerals. 

 114 pages, 4 x 6)2- Leather, $1.25 net. 



THE EXAMINATION OF HYDROCARBON OILS 



And of Saponifiable Fats and Waxes 



By Professor Dr. D. Holde. Authorized Translation from the Fourth Ger- 

 man Edition, by Professor Edward Mueller, Massachusetts Institute of 

 Technology. 

 The wide range of topics in this book, covered from a common standpoint, 

 renders the book unique in its availability for general work. 



484 pages, 6x9, 115 figures. Cloth, $5.00 net. 



DETERMINATIVE MINERALOGY. 2d Edition, Revised. 

 By Professor J. Volxey Lewis, Rutgers College. 



With Tables for the Determination of Minerals by Means of Their Chemical 

 and Physical Characters. 



The present edition differs from the first chiefly in the full restatement with 

 each section of the tables of the classificatory characters and tests leading up 

 to it. 



162 pages of text and double-page tables, including 380 minerals, 

 514 x 8, 68 figures. .Cloth, $1.50 net. 



EXAMINATION OFFER — If cash accompanies your order we will for- 

 ward copies of any of our publications on ten days' approval. If found unsuited 

 to your needs, we will refund your money, provided the books are returned 

 within ten days after their receipt. 



JOHN WILEY & SONS, Inc. 



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