SCIENCE 



NEW SEKiEs Friday, December 3, 1920 , t-g -f'^' '^ ^'- , „„ 



Vol. LII, No. 1353 > " > S^ W -l Subsckiption, 86.00 





A NEW WORK 



Rivas' Human Paritjitology 



This is the first work on this subject by an American author. An im- 

 portant and practical feature of the book is the included notes on bac- 

 teriology, mycology, laboratory diagnosis, hematology and serology. 

 Emphasis is given throughout to parasitic diseases and their potency as 

 predisposing factors to secondary bacterial infection. The discussion is 

 complete, beginning with the history of parasitology and taking up proto- 

 zoan parasites; metazoan parasites; vegetable parasites (fungi); miacro- 

 scopy and microscopy. The text is very fully illustrated. 



By DAMASO RIVAS, M.D., Ph.D., Assistant Professor of Parasitology and Assistant 

 Director of the course in Tropical Medicine, University of Pennsylvania. Octavo of 

 715 pages, with 445 illustrations, some in colors. Cloth, J8.00 net. 



Prentiss and Arey's Embryology nevs^ (3rd) edition 



This edition has been given a thorough and careful revision, adding every 

 new advancement. It deals particularly with the chick and pig embryos 

 usually studied in the laboratory, comparing them constantly with the 

 human embryo and giving you a concise systematic account of human 

 embryology. A large number of original dissections are described and 

 illustrated. 



Large octavo of 411 pages, with 3SS illustrations. By CHARLES W. PRENTISS, 

 Ph.D , formerly Professor of Microscopic Anatomy, and LESLIE B. ARET. Ph.D.. 

 Associate Professor of Anatomy, Northwestern University. Cloth, $4.00 net. 



Mallory and Wright's Pathologic Technic 



This work gives the technic of bacteriologic methods, bacteriology of 

 various diseases, histologic methods, the special methods, the special 

 methods used in clinical bacteriology and pathology, and the preparation 

 of bacterial vaccines. 



Octavo of 555 pages, with 181 illustrations. By PRANK BURR MALLORY, M.D., 

 Pathologist to the Boston City Hospital; and JAJVEES HOMER WRIGHT, M.D., 

 Pathologist to the Massachusetts General Hospital. Cloth, ?4.00 net. 



Mcjunkin's Clinical Microscopy and Chemistry 



This work is really a clinical pathology, omitting no step from obtaining 



the pathological material to interpretation of the findings. It is a book on 



the use of the microscopic and chemical analysis in the diagnosis of 



disease. 



Octavo of 470 pages, illustrated. By P. A, McJUNKIN, M.D., Professor of Pathology 

 at Marquette University School of Medicine. Cloth, $4.00 net. 



W. B. SAUNDERS COMPANY Philadelphia and London 



SEVENTH 

 EDITION 



