11 



SCIENCE-ADVERTISEMENTS 



** Humanized Science *^ 



is Tuha.t a. rcoleli^er calls 



An Introduction to Science 



By BERTHA M. CLARK, Ph.D., Head of 

 Science Department, 'Williain Penn High 

 School, Philadelphia. 494 pages. Price, $1.20 



"Dr. Bertha Clark has attempted, 

 successfully, to build up a body of 

 scientific material for freshmen in 

 high school, drawn from the problems 

 of a scientific nature ■which confront 

 the pupils in their home life and out- 

 door life. The hook is, therefore, not 

 'pure science' but 'humanized science' ; 

 and the author attempts to organize 

 these problems and their solutions so 

 as to leave the pupils vpith a scientific 

 point of view of their problems and 

 their solution. Hence we have an 

 introduction to science ef a kind likely 

 to be of great value to the pupil." 



AMERICAN BOOK COMPANY 



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The Apple 



By Albeet E. Wilkinson, Department of 

 Horticulture, Cornell University. 

 Information in easily accessible form on 

 the most profitable methods of apple cul- 

 ture carried on for many years by experts 

 in different parts of the United States and 

 Canada. Among many other subjects of 

 importance this book covers orchard 

 Planning Spraying 



Planting Storage 



Pruning Cooperation 



Fertilizing Renovating 



Insects Propagation 



Diseases Breeding 



492 pasei, illuatrated, partly in color, $2.00 



Ginn and Company 



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London 



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UNIVERSITY OF CALIFORNIA 

 PUBLICATIONS 



The UaWerBity of California issues publications in the 

 following series among others : 



Agricultural Science Mathematics 



American Archaeologry Pathology 



and Ethnology Philosophy 



Botany Physiology 



Economics Psychology 



Geology Zoology 

 Memoirs of the University of California 



Bulletin and Publications of the Lick Observatory J 



RECENT TITLES 



A Revision of the Tuberales of California, by Helen Mar- 

 garet Gilkey $.80 



Relationship of Equus to Pliohippus Suggested by Char- 

 acters of a New Species from the Pliocene of Califor- 

 nia, by John C. Merriam 10 



The Simultaneous Administration of Pituitary and Thy- 

 mus to Growing Chicks, by Samuel S. Maxwell 05 



The Status of the Beavers of Western North America, 

 with a Consideration of the Factors in their Spedation 

 by Walter P. Taylor 8s 



Notes on the Spiny Lobster {Panulirus Intenuptus) of the 

 California Coast, by Benton M. Allen 13 



Notes on the Marine Fishes of California, by Carl L. Hubbs .15 



The Feeding Habits and Food of Pelagic Copepods and 

 the Question of Nutrition by Organic Substances in 

 Solution in the Water, by Calvin O. Esterly 15 



Complete list of titles and prices will be sent 

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THE UNIVERSITY PRESS - - - Berkeley, California 



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PRINCIPLES OF 



STRATIGRAPHY 



BY 



AMADEUS W. GRABAU, S.M., S.D. 



PROFESSOR OF PALAEONTOLOGY IN 

 COLUMBIA UNIVERSITY 



Large Octavo, 1150 pages, ■with 254 illustrations in the text. 

 Cloth bound, price, 87.50. 



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