NATURAL SCIENCE. 105 
Introduction to Chemical Science. 
By R. P. WitutAms, Instructor in Chemistry in the English High 
School, Boston. 12mo. Cloth. 216 pages. By mail, 90 cents; for 
introduction, 80 cents. 
HIS work is strictly, but easily, inductive. The pupil is stimu- 
lated by query and suggestion to observe important phenomena, 
and to draw correct conclusions. The experiments are illustrative, 
the apparatus is simple and easily made. The nomenclature, 
symbols, and writing of equations are made prominent features. 
In descriptive and theoretical chemistry, the arrangement of sub- 
jects is believed to be especially superior in that it presents, not 
a mere aggregation of facts, but the science of chemistry. Brev- 
ity and concentration, induction, clearness, accuracy, and a legiti- 
mate regard for interest, are leading characteristics. The treat- 
ment is full enough for any high school or academy. 
Though the method is an advanced one, it has been so simplified 
that pupils experience no difficulty, but rather an added interest, 
in following it. 
The author himself has successfully employed this method in 
classes so large that the simplest and most practical plan has 
been a necessity. 
Thomas C. Van Nuys, Professor 
of Chemistry, Indiana University, 
Bloomington, Ind.: I consider it an 
excellent work for students entering 
upon the study of chemistry. 
C. F. Adams, Teacher of Science, 
High School, Detroit, Mich.: I have 
carried two classes through Wil- 
liams’s Chemistry. The book has 
surpassed my highest expectations. 
It gives greater satisfaction with 
each succeeding class. 
J. W. Simmons, County Superin- 
tendent of Schools, Owosso, Mich.: 
The proof of the merits of a text- 
book, is found in the crucible of the 
class-room work. There are many 
chemistries, and good ones; but, for 
our use, this leads them all. It is 
stated in language plain, interesting 
and not misleading. <A logical order 
is followed, and the mind of the 
student is at work because of the 
many suggestions offered. We use 
Williams’s work, and the results are 
all we could wish. There is plenty 
of chemistry in the work for any of 
our high schools. 
W. J. Martin, Professor of Chem- 
istry, Davidson College, N.C.: One 
of the most admirable little text- 
books I have ever seen. 
T. H. Norton, Professor of Chem- 
istry, Cincinnati University, O.: Its 
clearness, accuracy, and compact 
form render it exceptionally well 
adapted for use in high and prepara- 
tory schools. I shall warmly recom- 
mend it for use, whenever the effort 
is made to provide satisfactory train- 
ing in accordance with the require- 
ments for admission to the scientific 
courses of the University. 
