26 



SCIENCE. 



The Elements of Chemical Arithmetic, 



with a Short System of Elementary Qualitative Analysis. By J. MiLNOR 

 CoiT, M.A., Ph.D. y)4 by 5 inches, iv + 89 pages. Cloth. Price by 

 mail, 55 cents; Introduction price, 50 cents. 



HP HIS manual is designed to supplement the teaching of ordinary 

 text-books of descriptive chemistry. It is the result of the author's 

 own experience in elementary science-teaching, and has been success- 

 fully used by him in his own classes. The methods have therefore 

 been practically tested. Part I. contains the more important rules 

 and principles of chemical arithmetic, followed by a series of prob- 

 lems. The matter in this part of the book is purposely very much 

 condensed, and brought within the scope of the average student in 

 high schools or colleges. 



Part II. contains a short system of elementary qualitative analysis. 

 The simplest and best tests have been adopted, and the tables of sep- 

 aration of the metals will be found to be the least complicated. Some 

 tables for reference will be found at the end of the book. 



The manual will invite the examination of those who are inter- 

 ested in making the teaching of chemistry more practical even to 

 beginners. It is suggested that the book be used together with a good 

 work in descriptive chemistry. In the preparation of this manual the 

 writer has had the benefit of the advice and suggestions of several 

 eminent and experienced teachers. 



Though issued so recently , the following opinions have 

 come to hand:— 



A. S. Hall, Prof, of Chemistry, U.S. 

 Naval Acad., Annapolis, Md. : I am very 

 much pleased with the arrangement of 

 the first part. It is presented in such a 

 simple way as to render it well adapted 

 to schools in which elementary sciences 

 are taught. (May 22, 1886.) 



T. H. Norton, Prof, of Chemistry, 

 Univ. of Cincinnati, O : It is admirably 

 written, and I regard it as well adapted 

 to supplement the ordinary descriptive 

 text-book or series of lectures, especially 

 for high-school training preparatory to 

 scientific courses. ■ {May 12, 1886.) 



W. K. Higley, Prof of Chemistry, 

 Univ. of Chicago : I like it very much. 

 We shall use it next year in our labora- 

 tory, and I have recommended it to this 

 year's students. (June 5, 1886.) 



John W. Fox, Prof, of Chemistry, 

 Georgetown Coll., D.C.: It is an excellent 

 little book. (May 15, 1886.) 



J. W. Holland, Prof, of Chemistry, 

 yefferson Medical Coll., Philadelphia, 

 Pa.: It is an excellent manual, and will 

 be of great service to teacher and pupil, 

 (June 5, 1886.) 



