54 PRINCIPLES OF ANIMAL BIOLOGY 



Mitchell, P. H. Textbook of General Physiology. McGraw-Hill Book Company, 

 Inc. 3d Ed. (Chap. VII, the chemistry and physiology of proteins, lipids, and 

 carbohydrates; Chap. VIII, the salts; Chap. IX, water and electrolytes.) 



Rogers, C. G. Textbook of Comparative Physiology. McGraw-Hill Book Com- 

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Verworn, M. General Physiology. The Macmillan Company. (Part II of 

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