BUBEAU OF FORESTRY. 129 



FOREST ENTOMOLOGY. 



In cooperation with the Division of Entomologj% the study of the 

 relation of injurious insects to practical forestry will be continued, 

 and will include an investigation of the relation of insect pests to 

 American osier willow plantations. 



MISCELLANEOUS INVESTIGATIONS. 



Pacific Coast Tan-hark Oak. — A thorough investigation will be made 

 of the distribution and available commercial supplies of the Tan-bark 

 Oak of the Pacific slope. Special attention will be given to the growth 

 of the tree and its methods of reproduction. The importance of this 

 investigation is very great, since the supply of this bark, M'hich is the 

 most valuable in the West, is rapidly decreasing, and its place can 

 not be taken by material from any other western Tan-bark Oak. 



Pacific cedar-shingle industry. — A study will be made of the cedar- 

 shingle industry of the Pacific coast region. The industry will be 

 investigated at the principal manufacturing centers, while a careful 

 study will be made in the forest of the distribution, character, and 

 extent of cedar timber available for shingles. So far as it is possible 

 during the present season, a study will be made of the reproduction 

 and silvicultural characteristics of this cedar. 



Records. 



quarters. 



At the beginning of March, 1902, an entire floor of the Atlantic 

 Building was added to the quarters of the Bureau. This addition was 

 required by the congested condition of the rooms on the seventh floor. 

 It permitted a rearrangement of the offices, the installation of the 

 library, and the assignment of quarters to the photographic laboratory, 

 hitherto in the building of the Bureau of Chemistry by the courtesy 

 of the chief of that Bureau. 



LIBRARY. 



The transfer of the main collection of forest literature from the 

 Department Library to the quarters of the Bureau was prevented by 

 lack of space until March, 1902, when a large room was equipped for 

 library purposes. The library now contains 1,120 bound volumes, 

 1,900 pamphlets, and files of 28 current forest and lumber-trade jour- 

 nals, including French, English, and German periodicals. There 

 were added during the year 3,821 clippings from newspapers relating 

 to forest work. The library staff was increased by the appointment of 

 two librarians, making it possible to classify properly much valuable 

 material collected in former years and to keep abreast of the current 

 work. 



The photographic collection was largely increased. Prints to the 

 number of 3,64.3 were added during the year. Of this number, 3,235 

 photographs were taken in 42 States and Territories, and 408 forest 

 photographs were received from foreign countries, including excellent 

 collections from India, Switzerland, and Germany. These were classi- 

 fied, catalogued, and filed. 



The collection now numbers 6,059 prints. Every State and Terri- 



AGR 1902 9 



