SCIENCE 



New Series 



Vol. XLIJI. No. 1097 



Friday, January 7, 1916 



Single Copies. 16 Cts. 

 Annual Subsokiption. j!5.0o 



We issue a neat 24-page booklet — Saunders' Scientific Books is its title- 

 prepared especially for teachers in High Schools, Preparatory Schools, Gen- 

 eral Colleges and Academies. It describes fully our text-books on Biology, 

 Zoology, Bacteriology, Physiology, Histology, Embryology, Agriculture, 

 Veterinary Science, Dairying, Hygiene, Sanitation, First Aid, Exercise, Nu- 

 trition, and Dictionaries. All these books were written by teachers who 

 know their subjects — and how to impart their knowledge to others. Are 

 your classes using these text-books: 



Introduction to Neurology. By C. Judson 



Heerick. $1.75 net. New. 



Embryology. By Charles W. Prentiss, 



Ph.D. 13.75 net. 



Embryology. By J. C. Heisler, M.D. 



Third edition. $3.00 net. 



Biology. By Joseph McFarland, M.D. 

 Second edition. $1.75 net. 



Poultry Culture, Sanitation and Hygiene. 



By B. F. Kaupp, M.S., D.V.M. $2.00 net. 

 Diseases of Swine (particularly Hog 

 Cholera). By Charles F. Lynch, M.D., 

 D.V.S. $5.00 net. 



Horse in Health and Disease. By F. B. 

 Hadlby, D.V.M. $1.50 net. New. 

 Veterinary Bacteriology. By Robert E. 

 Buchanan, Ph.D. $3.00 net. 

 Anatomy of Domestic Animals. By Sep- 

 timus SissoN, S.B., V.S. New {2d) edition. 

 $7.00 net. 



Ophthalmology for Veterinarians. 



Walter N. Sharp, M.D. $2.00 net 

 General Bacteriology. By Edwin O. Jor- 

 dan, Ph.D. New {4th) edition. $3.00 net. 

 Bacteriologic Technic. By J. W. H. Eyre, 

 M.D. New {S) edition. $3.00 net. 

 Personal Hygiene. Edited by Walter L. 

 Ptle, M.D. Sixth edition. $1.50 net. 

 Personal Hygiene and Physical Training for 

 Women. By Anna M. Galbraith, M.D. 

 $2.00 net. 



By 



Exercise in Education and Medicine. By 



R. Tait McKenzie, M.D. New {2d) edition. 

 $4.00 net. 



Nutritional Physiology. By Percy G. 

 Stiles, Ph.D. $1.25 net. Neio {2d) edition. 

 Nervous System and its Conservation. By 

 Percy G. Stiles, Ph.D. $1.25 net. 

 Economic Zoology. By L. S. and M. C. 

 Daugherty. Parti: Field and Laboratory 

 Guide. $1.25 net. Part II: Principles. 

 $2.00 net. 



Invertebrate Zoology. By Gilman A. 

 Drew, Ph.D. New {2d) edition. $1.25 net. 

 Physiology. By William H. Howell, 

 M.D.,Ph.D. New {6th) edition. $4.00 net. 

 Elements of Nutrition. By Graham Lusk, 

 Ph.D. Second edition. $3.00 net. 

 Normal Histology and Organography. By 

 Charles Hill, M.D. New {3d) edition. 

 $2.25 net. 



Histology. By A. A. Bohm, M.D., M. von 

 Davidoff, M.D., and G. Carl Huber, 

 M.D. Second edition. $3.50 net. 

 American Pocket Medical Dictionary. 

 Edited by W. A. Newman Dorland, M.D. 

 New {9th) edition. $1.00 net. 

 Immediate Care of the Injured. By Albert 

 S. Morrow, M.D. Second edition. $2.50. 

 net. 



Massage. By Dr. Max Bohm, of Berlin; 

 and Charles F. Painter, M.D. $1.75 net. 

 Hygiene. By D. H. Bergey, M.D. Fifth 

 edition. $3.00 net. 



W. B. SAUNDERS COMPANY Philadelphia and London 



