THE AMERICAN SCIENCE SERIES. 7 
CHEMISTRY—Coxd¢zxued. 
Elements of Chemistry. I2mo. 272 pp. 
Utilizes the facts of every-day experience to show what chem- 
istry is and how things are studied chemically. The language 
is untechnical, and the subject is fully illustrated by simple ex- 
periments, in which the pupil is led by questions to make his 
own inferences. The author has written under the belief that 
“a rational course in chemistry, whether for younger or older 
pupils, is something more than a lot of statements of facts of 
more or less importance; a lot of experiments of more or less 
beauty; or a lot of rules devised for the purpose of enabling 
the pupil! to tell what things are made of. If the course does 
not to some extent help the pupil to think as well as to see it 
does not deserve to be called rational.” 
CHASE PALMER, Professor in the State Normal School, Salem. Mass.: 
—lIt is the best introduction to chemistry that I know, and I intend to 
put it into the hands of my pupils next Fall. 
A. D. GRAY, Jnstructor in Springfield (Mass.) High School :—Neat, 
attractive, clear, and accurate, it leaves little to be desired or sought 
for by one who would find the best book for an elementary course in 
our High Schools and Academies. 
GENERAL BIOLOGY. By WILLIAM T. SEDGWICK, Professor 
in the Mass. Institute of Technology, and EDMUND B. WIL- 
SON, Professor in Bryn Mawr College. Part J. 8vo. 193 pp. 
This work is intended for college and university students as 
an introduction to the theoretical and practical study of bi- 
ology. It is not zoology, botany, or physiology, and is intended 
not as a substitute, but as a foundation, for these more special 
studies. In accordance with the present obvious tendency of 
the best elementary biological teaching, it discusses broadly 
some of the leading principles of the science on the substantial 
basis of a thorough examination of a limited number of typical 
forms, including both plants and animals. Part First, now 
published, is a general introduction to the subject illustrated 
by the study of a few types. Part Second will contain a de- 
tailed survey of various plants and animals. 
W. G. FARLOw, Professor in Harvard University, Cambridge, Mass.: 
—An introduction is always difficult to write, and I know no work in 
which the general relations of plants and animals and the cell-struc- 
ture have been so well stated in a condensed form. 
