/ SCIENCE-ADVERTISEMENTS 



The University of California Press 



Berkeley, California S80 SladUon Avenue, New Tork 



THE GAM£ birds OF 

 CALIFORNIA 



By J. Grinnell, H. C. Bryant and 

 T. I.' $torer 



Large 8vo, pp. x+642, 16 colored plates, Q4 figures in 

 text. Cloth, $6.00 (carriage extra, weight 4 lbs. 6 oz.) 



A detailed description of every one of the io8 native 

 game birds of the state, c»mpnsing a practically com- 

 plete summary of our knowledge of each up to the 

 present time. 



The plan of treatment of each bird follows a regular 

 sequence: Technical portion (in small type): Accepted 

 common and scientific names; other names; descrip- 

 tion ; adult male, adult female, juvenile, downy young ; 

 marks for field identification; voice; nest; eggs; gen- 

 eral distribution; distribution in California. Text (in 

 large type): General and local distribution; migration; 

 field marks; life history: neSt, eggs, young; habits and 

 behavior; food; economic value; present and probable 

 future status. ' 



Complete lists of titles and. prices of all publications 

 of the University of California Press will be sent on 

 request. 



The Mathematical Theory 

 of Heat Conduction 



By L. R.Ingersoll, Associate Professor of 

 Physics, and O. J. Zobel, formerly Fellow 

 in Physics, University of Wisconsin. 



The presentation of the theory of an 

 interesting subject, with a large number 

 of practical applications. These applica- 

 tions are unusual in nature, well illus- 

 trated, and helpfully supplemented by 

 various tables in the appendix. The book 

 may be used as a first book in mathe- 

 matical physics. It will be serviceable 

 also to geologists and engineers. A num- 

 ber of solutions are presented for the first 

 time. The authors have recognized the 

 importance of the theory of heat conduc- 

 tion as a preliminary to the study of 

 more advanced mathematical physics and 

 have laid stress on the practical bearing 

 of their subject. 



171 pages, with diagrams, $2.00 



Ginn and Company 



70 Fifth Avenue 

 New York 



IT DOES AWAY WITH THE 

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 AGO 



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Its Nitrogen Pilled MAZDA LAMP, accessibility of adjustments, excellent ventilation, con- 

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