SCIENC 



v^ f T „«o Friday, September 12, 1919 ^""^^^ ^"^' '' ^^- ^, 



VOL. L, No. 12S9 ' ' Ahhual SnBSCRiPTiON, $a 



BLAKISTON 



MARSHAIvI.— Microbiology 



2J Edition, Revised and Enlarged. 186 Illustrations. Flexible Cloth, 

 Round Corners. $3.00 Postpaid 



A Text-book of Microorganisms, General and Applied, by various writers. 

 Edited by Charles E. Marshall, Professor of Microbiology and Director of Grad- 

 uate School, Massachusetts Agricultural College, Amherst. Discusses Morphology, 

 Culture and Physiology of Microorganisms, including Nutrition and Metabolism, 

 Physical Influences ; Bacteriology of Dairy, Soil, Water Supplies, Sewage Disposal, 

 Air, Special Manufactures, Diseases of Man, Animals and Plants. 



Conn — Agricultural Bacteriology 



3d Edition, Revised. 63 Illustrations, 12mo. Cloth, $2.00 Postpaid 



A Study of the Relation of Germ Life to the Farm, with Laboratory Experiments 

 for Students. Including Microorganisms of Soil, Fertilizers, Sewage, Water, Dairy 

 Products, Miscellaneous Farm Products and of Diseases of Animals and Plants. By 

 H. W. Conn, Ph.D., Formerly Professor of Biology, Wesleyan University, Middle- 

 town, Connecticut. 



Revi.sed by Harold Joel Conn, Associate Bacteriologist, N. Y. Agricultural 

 Experimental Station. 



ROBBY— Medical Bacteriology 



46 Illustrations, 8 in Colors. 8vo. Cloth, $2.50 Postpaid 

 A text-book for beginners and laboratory guide for medical practitioners and 

 pharmacists. By John A. Roddy, M.D., Associate in Hygiene and Bacteriology, 

 Jefferson Medical College; Chief Assistant, Department of Clinical Medicine, Jefferson 

 Hospital, Philadelphia. 



MACNEAIL — Patliogeiiic Microorgauisisis 



213 Illustrations. I2mo. Flexible Cloth, Round Corners. $2.50 Postpaid 



An introduction to the study of pathogenic microorganisms. Part I is devoted 

 to technical procedures; Part II general biology of microorganisms, and Part III dis- 

 cusses individual microbes. By Ward J. MacNeal, M.D., Professor of Pathology 

 and Bacteriology, New York Post-Graduate Medical School. 



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