|*JUL:3 1920 / 



SCIENCE 



New Series FkIDAY, JuLY 2. 1920 ^""^^= *^0"=^' ^^ Cts. 



Vol. LII, No. 1331 ' ' Annual Subscbiption, 86.00 



JVST READY 



Rivas' Human Parasitology 



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 bacteriol- 

 ogy, 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 protozoan parasites (sarcodina, flagellata, parasitic flagellates in 

 man, sporozoa, ciliata, chlamydozoa, ultramicroscopic organisms, and filter- 

 able viruses) ; metazoan parasites (trematoda, cestoda, nemathelminthes, 

 acanthocephala, gordiacea, nematoda, annelida, arthropoda, arachnida, 

 insecta; vegetable parasites (fungi); macroscopy 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, |8.oo net. 



Mallory and Wright's Pathologic Technic 



This work gives the technic of bacteriologic methods, bacteriology of 

 various diseases, histologic methods, the special methods used in clinical 

 bacteriology and pathology, and the preparation of bacterial vaccines. 



Octavo of SSS pages, with 181 illustrations. By Feank'Burr Mallory, M.D., Pathologist to the Boston 

 City Hospital; and James Homer Wright, M.D., Pathologist to the Massachusetts General Hospital. 



Seventh Edition. Cloth, $4. 50 net. 



Mcjunkin's CHnical Microscopy and Chemistry 



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

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

 use of the microscope and chemical analysis in the diagnosis of disease. 



Octavo of 470 pages, illustrated. By F. A. McJunkin, M.D., Professor of Pathology at Marquette Uni- 

 versity School of Medicine. Cloth, $4.00 net. 



Todd's CHnical Diagnosis 



Dr. Todd's work is more than a clinical diagnosis — it is a complete clinical 

 laboratory guide as well. In every case it clearly points out the significance 

 of the findings. Its illustrations are numerous, instructive and accurate. 



i2mo of 687 pages, with 262 illustrations, several in colors. By James Campbell Todd, M.D., Professor 

 of Clinical Pathology at the University of Colorado. Fourth Edition. Cloth $4.50 net. 



W. B. SAUNDERS COMPANY Philadelphia and London 



