A TEXT-BOOK IN GENERAL 

 ZOOLOGY 



By HENRY R. LINVILLE, Head of the Department of Biology, Jamaica 

 High School, New York City, and HENRY A. KELLY, Di- 

 rector of the Department of Biology and Nature 

 Study, Ethical Culture School, New York City 



462, pages, illustrated, $1.50 



A exposition of the science of zoology, presented without the inter- 

 polation of a laboratory guide. 

 Four years spent in careful examination of the original sources 

 have resulted in a book filled with valuable material. The authors, 

 through their extended service as teachers of biology in secondary 

 schools, are well equipped for the task of writing a text-book designed, 

 as this one is, chiefly for high-school use, although intended also to be 

 available for elementary college classes. 



The structure, the physiology, and the natural history of selected 

 types of animals are described with accuracy and in language easily 

 understood by young students. 



The treatment of the subject is broad, and the inductive method is 

 employed so far as each class and phylum of invertebrate animals is 

 concerned. The definition of a group is not given until the student's 

 conception of the group characters has grown to the point where the 

 definition forms the fitting end to the logical process involved in the 

 exposition. 



The Insecta are discussed in the first chapters, and after the remainder 

 of the Arthropoda are described, the other invertebrate phyla follow in 

 a descending series, ending with the Protozoa. Then, beginning with 

 the fishes, the order ascends to the mammals and closes with man. 



A large portion of the book is devoted to the insects and vertebrates, 

 because young students are more familiar with these groups and so take 

 greater interest in them. The less known, however, are treated with care, 

 the different features of morphology, physiology, and relation to envi- 

 ronment being maintained in good measure throughout. 



The book includes two hundred and thirty-three illustrations. 



169 



GINN & COMPANY PUBLISHERS 



