SCIENCE.— AD VERTISEMENTS. 



Of Interest to Students § Teachers of Chemistry 



AREY — Elementary Chemistry 



For High Schools and Academies. By A. L. Arey, Teacher of Chemistry and Physics 

 in the High School, Rochester, N. T. Cloth, 90 cents net. 



DAVENPORT— Experimental Morphology 



By Charles Benedict Davenport, Ph.D., Instructor in Zoology in Harvard University. 

 Part I. Effects of Chemical and Physical Agents on Protoplasm. 



Cloth, 8vo, $2.60 nel. 

 Part II. Effects of Chemical and Physical Agents on Growth. Cloth, 8vo, $2.00 net. 



QETMAN— Blowpipe Analysis 



By Frederick Hutton Getman, Instructor in Chemistry in Stamford High School. 



Just Ready. Cloth, 16mo, 60 cents net. 



This little book is designed for use in high schools, and also to serve as an aid to college students in the study 

 of qualitative analysis. 



HARDIN— The Liquefaction of Gases 



Its Rise and Development. By Willett Lepley Hardin, Harrison Senior Fellow in 



Chemistry in the Universitj' of Pennsylvania. Just Ready. Cloth, 12mo, $1.50. 



" The object of this little volume is to present a complete history of the development of the methods employed 



in the liquefaction of gases. Sufficient theory has been given to enable the popular reader to understand the 



principles involved. While the book has been written in a popular-science style, an effort has been made to make 



it of value to those who are especially interested in the subject by giving the references to the original literature." 



LACHMAN— The Spirit of Organic Chemistry 



An Introduction to the Cdrreimt Literature of the Subject. By Prof. Arthur 

 Lachman, Ph.D., University of Oregon. With an Introduction by Prof. Paul C. 

 Freer, Ph.D., University of Michigan. Cloth,"'Cr. 8vo, $1.50 net. 



LENQFELD — Inorganic Chemical Preparations 



By Felix Lengfeld, Assistant Professor of Inorganic Chemistry in the University of 

 Chicago. Cloth, 16mo, 60 cents net. 



REYCHLER— Outlines of Physical Chemistry 



By A. Reychler, Professor of Chemistry in the University of Brussels. Translated 

 from the French, with the author's permission, by John McCrea, Ph.D. (Held.). 



With 52 Illustrations. 12mo, Cloth, $1.00 net. 



TALBOT — An Introductory Course of Quantitative Chemical An= 

 alysis, with Explanatory Notes and Stoichiometrical Problems 



By Henry P. Talbot, Ph.D., Professor of Anah^tical Chemistry in the Massachusetts 

 Institute of Technologj'. Third Edition, Revised and Enlarged. 8vo, Cloth, $1.50 net. 



WADDELL— The Arithmetic of Chemistry 



Being a Simple Treatment of the Sub.tect of Chemical Calculations. 'By John Wad- 

 dell, Ph.D. (Heidelberg), D.Sc. (Edin.), formerly Assistant to the Professor of Chem- 

 istiy, Universit}' of Edinburgh. Cloth, 16mo, 90c. net. 



An accurate, simple and systematic treatment of the subject, arranged so as to make the text present a con- 

 tinuous line of argument. Useful tables are appended, the French metric system, of thermometric scales, 

 atomic weights, equations in frequent use, four-place logarithms, etc. 



THE MACMILLAN COMPANY, Publishers, New York 



