Becoming Acquainted with Trees 9 



be learned. You may send any specimens of wood con- 

 cerning which you are doubtful to the United States 

 Forest Products Laboratory, Madison, Wisconsin, for 

 identification. A study of Chapter Six and the key be- 

 ginning on page 147 may help you to identify some 

 common kinds of wood. . 



Many useful tree products besides wood and fruit 

 are mentioned in the following chapters. A collection 

 of them might be so arranged as to make an instructive 

 exhibit in a schoolroom. Of course there are many 

 trees not mentioned in this book that are just as interest- 

 ing to those who live where they grow as any that are 

 included here. 



References 



The United States Forest Service will lend to schools, under certain 

 conditions, a set of samples of sixty-four important woods, with pam- 

 phlets, charts, and tables giving information about these woods and 

 the trees that produce them. Lantern slides, photographs, maps, and 

 other material that is most valuable in a study of trees and tree products 

 are also lent, and a number of very helpful bulletins have been prepared. 

 Full information as to the material available for loan or distribution 

 may be secured by writing to The Forester, United States Department 

 of Agriculture, Washington, B.C. A list of books that will prove help- 

 ful in studying trees is given on page 156. 



