SCIENCE— ADVERTISEMENTS 



An Important New Textbook for First Year Chemistry 

 To be Published in September 



GENERAL CHEMISTRY 



By HARRY N. HOLMES 

 Professor of Chemistry, Oberlin College 



Cloth, octavo, with figures and diagrams, about 650 pages 



THE book has been written from the viewpoint of the student. It is a 

 text in the full teaching sense of the term, not a reference book. 



The order of topics adopted has proved satisfactory in actual practice. 

 Chlorine and hydrogen chloride are studied as early as Chapter IX because of 

 the excellent drill they provide both in the classroom and in the laboratory. 

 Treatment of the Periodic System is delayed until two good illustrations of its 

 relations (the halogens and the group comprising sulfur, selenium, and tellurium) 

 have been discussed. Important theories are introduced in chapters dealing 

 with the substances which best illustrate them. 



Chemical symbols, formulas, and equations — "the tools of the trade" — 

 are introduced early. 



Valence, a rather intangible topic to many students, is given a clear and 

 readily comprehensible introduction. 



The treatment of Molecular and Atomic Weights has been simplified in 

 order to make it entirely logical and convincing. 



A notable inclusion is the chapter on Colloid Chemistry. The growing 

 importance of this subject and its natural relation to the study of solutions 

 warrant the prominent place given to it. 



In a course on "General Chemistry," it is fitting that adequate consideration 

 be given to the elementary facts and principles of organic chemistry. The 

 book contains two able chapters treating of the chief components of carbon. 



Frequent reference is made to the applications of chemistry in industry, in 

 daily life, and in warfare. 



A great many exercises and problems are included. These are interspersed 

 through the text, serving to emphasize and illustrate specific points as they arise. 



THE MACMILLAN COMPANY 



NEW YORK BOSTON CHICAGO 



DALLAS ATLANTA SAN FRANCISCO 



