12 INTRODUCTION. 



arrangement, it is the most natural and logical one, since it shows the 

 dependence of the different branches of forestry upon each other. 



In addition to the classified bibliography, an alphabetically arranged 

 author index has been prepared, for the use of ihose who wish to find 

 books known to them by authors' names, or to ascertain everything 

 the library contains by a certain author. While it has been the aim 

 of the library to secure all of the books on forestry written in English, 

 the bulk of the forest literature is still in German and French. 



The titles listed in this bulletin include all of the books and pam- 

 phlets on forestry in the department library, but no periodical articles 

 unless reprinted in separate form. This is perhaps the largest collec- 

 tion devoted strictly to forestry in the United States, if not in the 

 world. The latter, however, is a difficult matter to determine, as 

 nearly all foreign bibliographies include books on hunting, fishing, 

 and allied subjects, which are more closely connected with the sub- 

 ject of forestry in Europe than in this country. 



HENRY S. GRAVES, 



Forester. 



