96 



NATURAL SCIENCE. 



A. B. Aubert, Prof, of Chemistry, 

 Maine State College, Orono, Me. : 

 All the salient points are well ex- 

 plained, the theories are treated of 

 with great simplicity ; it seems as if 

 every student might thoroughly un- 

 derstand the science of chemistry 

 when taught from such a work. 



H. T. Fuller, Pres. of Polytechnic 

 Institute, Worcester, Mass. : It is 

 clear, concise, and suggests the most 

 important and most significant ex- 

 periments for illustration of general 

 principles. 



Alfred S. Koe, Prin. of High 

 School, Worcester, Mass. : I am very 

 much pleased with it. I think it the 

 most practical book for actual work 

 that I have seen. 



Frank M. Gilley, Science Teacher, 

 High School, Chelsea, Mass. : I have 

 examined the proof-sheets in connec- 

 tion with my class work, and after 

 comparison with a large number of 

 text-books, feel convinced that it is 

 superior to any yet published. 



G. S. Fellows, Teacher of Chemis- 

 try, High School, Washington, D.C.: 

 The author's method seems to us the 

 ideal one. Not only are the theo- 

 retical parts rendered clear by ex- 

 periments performed by the student 

 himself, but there is a happy blend- 

 ing of theoretical and applied chem- 

 istry as commendable as it is unusual. 



J. I. D. Hines, Prof, of Chemistry, 

 Cumberland University, Lebanon, 

 Tenn. : I am very much pleased with 

 it, and think it will give the student 

 an admirable introduction to the sci- 

 ence of chemistry. 



Horace Phillips, Prin. of High 

 School, Elkhart, Ind. : My class has 

 now used it three months. It proves 

 the most satisfactory text-book in 

 this branch that I have ever used. 

 The cost of apparatus and material 

 is very small. 



0. S. Wescott, Prin. North Divis- 

 ion H. Sch., Chicago : My chemistry 

 professor says it is the most satisfac- 

 tory thing he has seen, and hopes we 

 may be able to have it in future. 



Laboratory Manual of General Chemistry. 



By K. P. WILLIAMS, Instructor in Chemistry, English High School, Bos- 

 ton, and author of Introduction to Chemical Science. 12mo. Boards. 

 xvi + 200 pages. Mailing Price, 30 cents ; for Introduction, 25 cents. 



Manual, prepared especially to accompany the author's 

 Introduction to Chemical Science, but suitable for use with 

 any text-book of chemistry, gives directions for performing one 

 hundred of the more important experiments in general chemistry 

 and metal analysis, with blanks and a model for the same, lists 

 of apparatus and chemicals, etc. 



The Manual is commended as well-designed, simple, convenient, 

 and cheap, a practical book that classes in chemistry need. 



W. M. Stine, Prof, of Chemistry, 

 Ohio University, Athens, 0.: It is a 

 work that has my heartiest endorse- 

 ment. I consider it thoroughly peda- 



gogical in its principles, and its r/se 

 must certainly give the student the 

 greatest benefit from his chemical 

 drill. (Dec. 30, 1888.) 



