SCIENCE 



v^S^NoiMfi Friday, February 8, 1918 f "" '^""' "*^„„ 



VOL. xivn. No. 1206 ' , ~*w AmroiL 8DB«o»ipnoii, I5.QQ 



New Blakiston Books 



VILLAVECCHIA 

 Applied Analytical Chemistry 



Methods and Standards for the Chemical Analysis of iJtie Principal Industrial and Food Products. 

 By Professor Vittorio Villavecchia, Director, Chemical Laboratories, Italian Customs. With 

 the Collaboration of Several Eminent Italian Chemists. Translated by Thomas H. Pope, B.Sc, 

 A.C.G.I., F.I.C., University of Birmingham, England. Vol. I. 58 illustrations, Cloth, $6.00 post- 

 paid. (Vol. II in Preparation.) 



TOQNOLI 



Reagents and Reactions 



By Edgabdo Tognoli, M.D., Professor in the University of Modena; Translated from the Italian 

 by C. AiNswoRTH Mitchell, B.A., F.I.C., (England) 12mo, Cloth, $2.00 Postpaid. 



MARSHALL 



Short Account of Explosives 



By Arthur Marshall, A.C.G.I.,' F.I.C.'T.C.S., [Chemical Inspector, British Ordnance Depart- 

 ment. 29 Illustrations. Cloth, $1.504Postpaid. 



The book gives in clear, simple language the main^factslcoQcerning the different varieties of ex- 

 plosives, miUtary and commercial, their composition, uses,'_etc. 



WILEY 

 Foods and Their Adulteration 



Third Edition. By Harvey W. Wiley, M.D., Ph.D., Formerly Chief Chemist, U. S. Department 

 of Agriculture. With_ll_Colored Plates and j87 ^other Illustrations. 8vo, Mv-f-646 pages. Cloth, 

 $4.00 Postpaid. 



It discusses tbeorigin, manufacture, composition of food products ; Infants' and InvalidB' Foods; 

 Detection of Common Adulterations, etc. 



CONN 

 Agricultural Bacteriology 



Second Edition. By H. W. Conn, Ph.D., Professor of Biology, Wesleyan University, Middletown, 

 Conn. Revised by Harold Joel Conn, Associate Bacteriologist, New York Agricultural Experi- 

 ment Station. 63 Illustrations, x-|-357 pages. 12mo. Cloth, $2.00 postpaid. 



P. BLAKISTON'S SON & CO., 



PUBLISHERS?!) 



PHILADELPHIA 



