SCIENCE 



New Series "'-"",• •■''" -.^ ^ ^ ^ .o<i Annual StrBSCKiPTiON,$b.oo 



Vol. LVI, Xo. 1457 ^ RIDAY, DECEMBER 1, 1922 Single Copies, 15 Ors. 



Saunders^ Books 



Wells' Chemical Pathology EDinoN 



This work considers paUioIogy {rom the standpoint of the chemical processes involved. It 

 deals with the chemical changes that take place in pathologic conditions. It treats of the 

 causes of disease and so provides the first step in their treatment. 



Octavo of 695 pages. Bv H. GIDEON WELLS, M D., Ph.D., Professor of Pathology, Universitv of Chicago. 



Cloth, $7.00 net. 



Jordan's General Bacteriology ^edition 



In this work there are extensive chapters on methods of studying bacteria, including stain- 

 ing, biochemical tests, cultures, etc. ; on development and composition of bacteria ; on enzymes 

 and fermentation products; on the bacterial production of pigment, acid, and alkali; and on 

 ptomains and toxins. 



Octavo of 744 pages, illustrated. By EDWIN O. JORDAN, Ph.D., Professor of Bacteriolo.gy in the Uni- 

 versity of Chicago. . Cloth, $5.00 net. 



Williams' Personal Hygiene Applied ready 



This book is far more than a recital of information on health. It establishes a new interpre- 

 tation of health in terms of life. It is personal hygiene applied. There are chapters on 

 the muscular system, nutrition, the respiratory system, circulatory, excretory, and nervous 

 systems, sexual aspects of life, prevention in specific diseases, hygiene of the mouth, eye, 

 and ear. 



By JESSE FEIRING WILLIAMS, M.D., Associate Professor of Physical Education, Teachers College, 

 Columbia ITniversity, New York City. 12ino of 412 pages, illustrated. Cloth, $2.50 net. 



Smith's Bacterial Diseases of Plants 



This book is the result of thirty-five years of reading and diligent laboratory and field in- 

 vestigation. It is largely the product of a single laboratory, eight of the organisms here 

 selected for special study having been named by the author. 



By ERWIN F. SMITH, in charge of Laboratory of Plant Pathology, Bureau of Plant Industry, Washing- 

 ton, D. C. Octavo of (iSS pages, illustrated. Cloth, $10.00 net. 



Heineman on Milk 



This work discusses milk from the viewpoint of the sanitarian, producer, and physician. 

 There are chapters on the physiology of lactation, chemical, physical, and bactenologic ex- 

 aminations, contamination, fermented milks, pasteurization, certified milk, economic aspect 

 of production and distribution, etc. 

 By PAUL G. HEINEMAN, M.D., Wisconsin. Octavo of 684 pages, illustrated. Cloth, $/."" net. 



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Please send me the books checked (V) and charge to my account:— 



„ , , ' ^■jr^n „o, Smith's Bacterial Diseases of Plants $10.00 net. 



Wells' Chemical Pathology $7.00 net. Williams' Personal Hygiene Applied $2.50 net. 



Jordan's General Bacteriology $5.00 net Heineman's Milk P-00 net. 



