APPLETONS' SUPPLEMENTARY READERS, 

 Nature Study Readers. 



By J. W. Troeger, A. M., B. S. A Graded and Pro- 

 gressive Series of Readers for Supplementary Use. Five 

 volumes. Illustrated. i2mo. Cloth. 



1. Harold's First Discoveries 25 cents. 



2. Harold's Rambles 35 " 



3. Harold's Quests 45 *• 



4. Harold's Explorations 50 " 



5. Harold's Discussions 60 " 



This series begins with objects of real interest to children, and 

 progresses from the simple to the more complex, from features appeal- 

 ing to child mind to form, use, adaptation, and relation. 



For instance, the first book touches upon the general appearance of 

 trees, what they need for their growth and what they give, etc. ; the 

 second book similarly describes the common trees not mentioned in the 

 first book, and treats of the growth and uses of different woods ; the 

 third book tells about the grain and strength of woods, the structure 

 and function of roots and leaves, including special adaptations ; the 

 fourth book considers the great forests and their uses to man ; and the 

 fifth discusses trees as a factor in the economy of nature. They are 

 not intended to exhaust any of these subjects, but to describe pleasing 

 and economic features so as to interest the child in his environment, to 

 lead him to ask himself questions, and to beget sympathy with nature. 



Other subjects are treated in like manner, such as plants, insects, 

 birds, fishes, mammals, minerals, phenomena of air and water, etc. 



D. APPLETON AND COMPANY, NEW YORK. 



