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JUST OUT 



The 

 Marine Decapod Crustacea 



of California 



By WALDO L. SCHMITT 



470 pages, 50 plates, 165 figures in text. 

 Paper, $5.00. Carriage extra, weight 3H lbs. 



More than 200 valid species, including 

 eleven new ones, are systematically described 

 in this exhaustive treatise on these interesting 

 and, in many cases, economically important 

 forms. Forty-seven occur in San Francisco 

 Bay and receive special treatment. The 

 volume also includes a detailed discussion of 

 the geographical distribution of the decapods 

 and the influence upon them of salinity, tem- 

 perature and depth. 



The University of California Press 



Bsrkcler, California 



19 Eait 47th Street, New York 



Why does an engine knock ? 



Look at the Trouble Chart in 



LIND'S 

 Internal Combustion Engines 



A book which is of genuine 

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 through text and illustrations the 

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 describes their parts. It is clear, 

 concise, and fully up-to-date. 

 For the engineering student and 

 for the owner of an automobile 

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GINN AND COMPANY 

 70 Fifth Avenue, New York 



Wiley Text-Books on Geology 



JUST ISSUED 



Third Edition, Thoroughly Revised and Enlarged. 



HANDBOOK FOR FIELD GEOLOGISTS 



By C. W. Hayes, Ph.D., Late Chief Geologist, U. S. Geological Survey. Revised and Re- 

 arranged by Sidney Paige, Geologist in Charge, Division of Geology, U. S. Geological 

 Survey. 

 Part I is a concise summary of the methods and instruments most useful in field work, 

 while Part II presents outlines and schedules covering special investigations in the several fields 

 of geology. 



166 pages. 4J by 6f . 20 figures and 2 plates. 

 Flexibly bound, $2.50 postpaid. 



BY OTHER AUTHORS 



Text-book of Geology. In Two Parts. By 

 the late L. V. Pirsson and Charles 



SCHUCHERT. 



Part I, $3.00; Part II, $3.50; Complete, $5.50 



Agricultural Geology. By the late Frederick 

 V. Emerson. 



In one volume, $3.00 



Engineering Geology. By H. Ries and 

 Thomas L. Watson. 



In one volume, $3.75 



Elements of Engineering Geology. By H. 



Ries and Thomas L. Watson. 

 In one volume, $3.75 



Economic Geology. Fourth Edition. By H. 

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In one volume, $5.00 



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