4 

 OFFICE OF SILVICS. 



RAPHAEL ZON. Chief. 



Field Studies, KAPHAEL ZON, Acting. 



Colorado 



Study of insect-infested timber in Colorado National Forests, in cooperation 

 with the Bureau of Entomology (Forest Insect Investigations, A. D. Hopkins, 

 in charge) W. D. EDMONSTON, Colorado Springs, Colo. 



Eastern States 



Study of the hickories A. T. BOISEN, Washington, D. C. 

 Middle West- 



Study of windbreaks and their influences C. G. BATES, Washington, D. C. 

 Rocky Mountain States 



Study of lodgepole pine E. R. HODSON, Washington, D. C. 

 Southwest 



Study Of the reproduction of western yellow pine S. T. DANA, Flagstaff, Ariz. 

 General 



Study of methods of determining light requirements of trees G. A. PEARSON, Wash- 

 ington, D. C. 



Library, H. E. STOCKBRIDGE. 



Compilation, E. H. FROTHINGHAM. 

 OFFICE OF EXTENSION. 



SAMUEL, N. SPKING, Chief. 



Planting-, L. C. MILLER (in the Field). 

 E. C. CLIFFORD, Acting. 



Compilation of data on planting stations B. R. H. D'ALLEMAND, Washington, D. C. 



(Nursery and planting work under the direction of supervisors.) 



Pikes Peak Planting Station. J. F. KUMMEL, Monument, Colo. 

 Pocatello Planting Station. G. B. MACDONALD, Pocatello, Idaho. 

 Garden City Planting Station. A. E. OMAN, Garden City, Kans. 



Reconnaissance, W. II. VON BAYEB. 



I ItO JEOT. 



Investigations of storage and germination of forest tree seeds preliminary 

 to experimental work at planting stations, and in cooperation with nurserymen. 



Cooperation, A. S. PECK. 

 Correspondence. Advice on private forest planting A. S. PECK. 



Supervision of cooperative planting on private lands L. CROWELL, Washington, 

 D. C. 



Examination of plantations in the Northeastern States, established as a result'of 

 planting plans C. A. K UPPER, Washington, D. C. 



Compilation of data on private forest planting W. M. MOORE, Washington, 

 D. C. 



