SCIENdt 





New Series 



Vol. LIV, No. 1398 



Friday, October 14, 1921 



Single Copies, 15 Cts. 

 Annual Subsckiption, J6.00 



Books for the Scier^lfic Library 



WILDER. A Laboratory Manual of An- 

 thropometry. With 43 Illustrations. 8vo. 



Cloth, S3. 00. 



By Harris H. Wilder, ph. d.. Professor of 

 Zoology, Smith College, Northampton, Mass. 



GAGER. Heredity and Evolution In 

 Plants. 114 Illustrations. 8vo. xiii + 265 

 Pages. Cloth, $1.25. 



By C. Stuart Gager, Director of the Brook- 

 lyn Botanic Garden. 



BAILEY. Source, Chemistry and Use of 

 Food Products. 2d Edition, Revised. 92 

 Illustrations. Cloth, I2.50. 



By E. H. S. Bailey, ph. d.. Professor of 

 Chemistry and Director of Chemical Labora- 

 tories, University of Kansas, Lawrence. 



The book discusses the source, preparation 

 for the market, packing, preserving, shipping, 

 composition, nutrient and dietetic value of 

 foods and drinks and their uses. 



JENSEN. Dairy Bacteriology. English 

 Edition from the 2d Specially Revised and 

 Enlarged Danish Edition. 70 Illustrations. 

 8vo. Cloth, $3.00. 



By Professor Orla Jensen, Denmark. 

 Translated by Paul S. Arup, B.Sc. (London). 



COPAUX-LEFFMANN. Introduction to 

 General Chemistry. 30 Illustrations, i2mo. 

 X + 195 Pages. Cloth, $2.00. 



By H. CoPAUX, Professor of Mineral Chem- 

 istry, School of Industrial Physics and Chem- 

 istry, Paris. Translated by and with Ap- 

 pendix by Henry Leffmann, a. m., m. d., 

 Member A merican Chemical Society and of the 

 British Society of Public Analysts. 



An exposition of the principles of modern 

 chemistry. 



ROUGIER. PhUosophy and The New 

 Physics. i2mo; XV + 159 pp. Cloth, $1.75. 



By Louis Rougier, Professeur Agrege De 

 Philosophie, Docteur Es Lettres. Authorized 

 Translation from the Author's Corrected 

 Text of "La Materialisation de I'Energie." 

 By Morton Masius, m. a., ph. d.. Professor 

 of Physics, Worcester Polytechnic Institute; 

 Translator of M. Planck's " Theory of Radia- 

 tion." 



GORi ^ ^ French-English Medical Dic- 

 tionary. '^ ^ iv + 161 pp. Cloth, $3.50. 



By Alfi ^'^ RDON, A. M., M. D. (Paris), 

 Formerly A A ^ in Nervous and Mental 

 Diseases, /^ "^ Medical College, Phila- 

 delphia. ^ 



CHAMBER! ^ Text book of Organic 

 Chemistry. 8\ ^ ^ f 959 pp. 



% % Cloth, $4.00. 



By Joseph Scul 5- $» 'amberlain, ph. d., 

 Professor of Organic '%'Q> 'ry, Mass. Agricul- 

 tural College. "** 



HAMPSHIRE. Volumetric Analysis for 

 Students of Pharmaceutical and General 

 Chemistry. 3d Edition, Revised. i2mo; 

 iv + 124 pp. Cloth, $1.75. 



By Charles H. Hampshire, b. sc. (Lond.), 

 A. I. c, Member of the Board of Examiners of 

 the Pharmaceutical Society, London. 



HACKH. Chemical Reactions and Their 

 Equations. i2mo; viii -f 138 pp. 



Cloth, $1.75. 



By Ingo W. D. Hackh, ph. c, a. b., 

 Professor of Biochemistry, College of Physicians 

 and Surgeons, San Francisco. 



COLLIS and GREENWOOD. The Health 

 of the Industrial Worker. 38 Illustrations. 

 8vo; xix + 450 pp. Cloth, $7.00. 



By Edgar L. Collis, m. d., m. r. c. p.. 

 Professor of Preventive Medicine, Welsh 

 National School of Medicine; and Major 

 Greenwood, m. r. c. p. (Lond.), Member 

 Industrial Fatigue Research Board (Lond.). 

 With Chapter on Reclamation of the Dis- 

 abled, by Arthur J. Collis, m. d., Medical 

 Superintendent Ministry of Pensions Hospital 

 (England) and an Introduction by Sir 

 George Newman, k. c. b., m. d. (London). 



WILEY. Foods and Their Adulteration. 

 II Colored Plates and 87 other Illustrations. 

 3d Edition, Revised. 8vo. xiv -f 646 pp. 



Cloth, $6.00. 



The Origin, Manufacture and Composition 

 of Food Products. Description of and Simple 

 Tests for Common Adulterations. Food 

 Standards; Infants' and Invalids' Foods. By 

 Harvey W. Wiley, m. d., sc. d.; Formerly 

 Chief Chemist, U. S. Department of Agriculture. 



P. Blakiston's Son & Co., Publishers, 



1012 Walnut Street, 

 Philadelphia, Pa. 



