SCIENCE 



New Series 



Vol. XLVI. No. 1179 



Friday, August 3, 1917 



Single Copies, 15 Cts. 

 Annual Subscription, $5.00 



Jordan's General Bacteriology 



FIFTH 

 EDITION 



In this work there are e.xtensive chapters on methods of studying bacteria, including stain- 

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

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

 alkali; and on ptomains and toxins. 



Fred's Soil Bacteriology I^^S li^Ei^I 



The exercises described in this book are arranged primarily for students of soil bacteriol- 

 ogy, soil chemistry and physics, and plant pathology. As far as possible the experiments 

 are planned to give quanlUalive results. It is truly a valuable laboratory manual — worked 

 out by a teacher and based on the student's needs. 



12mo of 170 pages, illustrated. By K. B. Fred, Ph.D., Associate Professor of Agricultur.il Bacteriology. 

 College of Agriculture, University of Wisconsin. Cloth, S1.25 net. 



Buchanan and Murray's Veterinary Bacteriology 



This new (2d) edition goes minutely into the consideration of immunity, opsonic index, 

 reproduction, sterilization, antiseptics, biochemic tests, culture media, isolation of cul- 

 tures, the manufacture of the various toxins, antitoxins, tuberculins, and vaccines. 



Octavo of 590 pages, illustrated. By Robert E. Buchanan, Ph.D., Professor of Bacteriology, and Charles 

 MtJHRAT, B.Sc. D.V.M., Associate Professor of Veterinary Bacteriology, Iowa State College of .Agriculture 

 and Mechanic Arts. Cloth, S3.50 net. 



McFarland's Bacteria and Protozoa edition 



This bacteriology brings each micro-organism into a historic, geographic, biologic, and 



pathologic setting. It dwells upon the anatomic and physiologic disturbances referable 



to the various micro-organisms. It explains such methods of diagnosis and treatment as 



grow out of a knowledge of microbiology. 



Octavo of 87S pages, illustrated. By Joseph McFarland, M.D., Professor of Pathology and Bacteriology 

 in the University of Pennsylvania. Cloth, $4.00 net. 



Eyre's Bacteriologic Technic edition 



Dr. Eyre gives clearly the technic for the bacteriologic examination of water, sewage, air, 

 soil, milk and its products, meats, etc. It is a work of much value in the laboratory. 

 The illustrations are practical and serve well to clarify the text. The book has been 

 greatly enlarged. 

 Octavo of 525 pages, illustrated. By J. W. H. Ev 



W. B. SAUNDERS COMPANY Philadelphia and London 



