FOREST SERVICE. 35 



the buyer of seed or stock. A circular is being prepared which will 

 set forth the distinguishing marks and safeguard the planter. 



CAEE OF STREET AND PARK TREES. 



Many demands for advice in caring for shade trees are made upon 

 the Service. In the absence of any satisfactory treatise on the sub- 

 ject, material for an illustrated circular dealing with it is being col- 

 lected. Examples of correct methods are now furnished by trees in 

 Washington, D. C, which have been cared for under the advice of the 

 Service. 



An offer of assistance to cities in naming and labeling their trees 

 brought a number of requests for this help. The city of Eichmond 

 asked and received an examination of its trees and recommendations 

 for their care. 



FOREST HERBARIUM. 



This collection contains specimens of typical foliage, fruits, seeds, 

 bark, and wood of approximately 400 of the 645 native species, and 

 150 foreign trees, or about 3,500 specimens altogether, besides a col- 

 lection of 1,000 thin sections of foreign woods. Special effort is 

 being put forth to make the collection of our native forest trees com- 

 plete. The National Herbarium relies upon this office for tree iden- 

 tifications, and the Service herbarium is considered a part of the 

 National Museum collection. It is widely and constantly used by 

 members of the Service. 



rOREST LIBRARY. 



The forest library contains 9,291 books and pamphlets, of which 

 1,213 were added during the year. One hundred and seventeen 

 volumes were bound. Plans for extending the use of the library to 

 field officers are under way. The headquarters of 84 field officers 

 will be supplied with bound copies of all Service publications likely 

 to be of use, and of certain other standard forest books. 



There was a notably increased use of the library by members of the 

 Service this year. The library committee, in cooperation with the 

 Librarian of the Department of Agriculture, completed a classified 

 catalog of forest literature, including the literature of important 

 auxiliary sciences accessible in the library of the Department. The 

 whole presents a concise view of forest and related literature pre- 

 pared for persons not trained in forestry. Constant requests received 

 for lists of works on forestry suitable for general library and educa- 

 tional use show the need for such a publication. 



FOREST PHOTOGRAPHIC COLLECTION. 



The Service now has 24,462 mounted photographs, including 1,600 

 from foreign countries, of which 5,410 were cataloged and filed dur- 

 ing the year, and 935 unmounted pictures. They are from 63 States 

 and Territories and insular possessions, and 26 foreign countries. 

 They are indexed by States, countries, and subjects, and are also 

 platted by symbols on a map to show what regions they cover and to 

 indicate where additions are most needed. 



