THE AMERICAN SCIENCE SERIES. ") 



CHE M ISTR Y Continued. 



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.: 

 It 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, Instructor 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 I. 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. 



