SCIENCE 



New Series 

 Vol. L, No. 1292 



Friday, October 3, 1919 ^f"'^^ <^"^' ^^ ^- ., „„ 



' ' Anhual Scbscbiption, $5.00 



JUST OUT 



This work appeals to sanitarian, physician, laboratory worker, pro- 

 ducer, economist, and student. For instance the sanitarian will find 

 chapters on adulteration and adulterants, with methods, formulas, means of 

 detection, cause and prevention of contamination, inspection, and similar 

 subjects of sanitary importance. For the physician there are chapters on 

 such subjects as Metchnikofif's theories on fermented milk and bacterial 

 flora; milk-borne infections, milk in infant feeding, etc. The laboratory 

 worker will find complete details of technic for all tests. For the producer, in 

 addition to sanitary methods there are chapters on handling, distribution, 

 the manufacture of condensed and desiccated milk, cheese, butter, ice 

 cream, with illustrations of new apparatus. For the economist and student 

 generally there is here presented a complete study of the milk problems 

 from every angle from production to consumption. 



Octavo of 684 pages, illustrated. By Paul G. Heineman, Ph.D., Director of the Laboratories of the 

 United States Standard Serum Company, Wisconsin. Cloth, S6.00 net. 



Fred's Soil Bacteriology 



Laboratory Manual of Soil Bacteriology, 

 By E. B. Fred, Ph.D., Associate Professor 

 of Agricultural Bacteriology, College of 

 Agriculture, University of Wisconsin. l2mo 

 of 170 pages, illustrated. Cloth, $1.25 net. 

 Valuable to students of soil bacteriology, 

 chemistry, physics, plant pathology. 



Whetzel's Phytopathology 



History of Phytopathology. By Herbert 

 HiCE Whetzel, A.m., Professor of Plant 

 Pathology, Cornell. i2mo of 130 pages, 

 illustrated. Cloth, $1.75 net. 



The outstanding features in the evolution of 

 plant pathology. 



Dietrich's Live Stock 



Livestock on the Farm. By William Diet- 

 rich, Ph.D., Head of the Department of 

 Animal and Dairy Husbandry, University 

 of Minnesota, Crookston Branch. i2mo 

 of 269 pages, illustrated. Cloth, $1.50 net. 

 A clear presentation of economic livestock 

 raising. 



Kaupp's Anatomy of the Fowl 



The Anatomy of the Domestic Fowl. By B. 

 F. Kaupp, M.S., D.V.M., Poultry Investi- 

 gator and Pathologist, North Carolina Ex- 

 periment Station. i2mo of 373 pages, il- 

 lustrated. Cloth, I3.00 net. 



The first complete textbook on this subject. 

 Particularly full on embryology. 



W. B. SAUNDERS COMPANY Philadelphia and London 



