SCIENCE 



New Series Ftjttiav Tlwm^iUTSWW 19 1Q1Q Anhdal Subsceiption, $5.00 



Vol. L No. 1302 T RIDAY, iJEChM.Bi>,K IZ, IV iV Aftek January 1, 1920, $6.00 



Brubaker's Textbook of Human Physiology 



6th Edition Revised and Enlarged. 356 Illustrations. 8vo. xii+794 pp. 

 Cloth, $4.25 Postpaid 



By ALBERT P. BRUBAKER, A.M., M.D., LL.D., Professor of Physiology 

 and Medical Jurisprudence in the Jefferson Medical College, Philadelphia. 



Professor Brubaker's long and successful career as a college lecturer and 

 teacher of physiology especially fits him for the authorship of an author- 

 itative work on this subject. Those who wish to keep in touch with the 

 progress of physiology and have, at the same time, the essentials in prac- 

 tical form, will find the book very satisfying. Among the new subjects 

 presented in this edition may be mentioned: Electric Currents of the Heart 

 and their Graphic Registration; Animal Heat; Internal Secretion; Auto- 

 nomic Nerve System; Numerous revisions and additions have been made 

 in the sections on Mechanisms by which changes in the Arterial Pressure 

 are brought about; Mechanism of Carbohydrate Metabolism; Physiologi- 

 cal Actions of Spinal Cord and Spinal Nerves, and many other sections. 

 Several new diagrams are included. 



Gager's Evolution and Heredity in Plants 



Illustrated 12mo. In Preparation 



By C. STUART GAGER, Director of Brooklyn Botanic Garden, Brooklyn, 



New York. 



The subject-matter covered by this work has not been elsewhere presented 

 in so concise and interesting manner within the scope of a textbook. The 

 work is based upon the author's chapters on the subject in his "Funda- 

 mentals of Botany" with the addition of considerable new matter, omission 

 of several paragraphs and recasting of others, and the addition of some 

 fresh illustrations. The book will prove a source of reliable and readable 

 information to those interested. 



P. BLAKISTON'S SON & CO. 



PUBLISHERS PHILADELPHIA 



