6 



Washington 



Tests of western larch, treated Douglas fir, western hemlock, and National Forest 

 woods, in cooperation with the Western Pine M'f rs Ass'n, the Pacific Creosoting 

 Co., the Pacific Coast L'br. M'f rs Ass'n, and the University of Washington 0. P. M. 

 Goss, University Station, Seattle; assistant, A. L. HEIM. 



General Studies 





Washington office, timber tests ROLF THELEN," in charge; assistants, T. W. 

 VENEMANN and H. E. MCKENZIE. 



Design of impact testing machine, and plans for Washington timber-testing labo- 

 ratory ROLF THELEN, Washington, D. C. 



Collection of statistics of forest products, in cooperation with the Bureau of the 

 Census A. H. PIERSON, Washington, D. C. ; GEORGE K. SMITH, Lumbermen's 

 Building, St. Louis, Mo. 



Study of commercial processes of wood distillation L. F. HAWLEY, Washington, 

 D. C. 



Study of chemical problems in wood utilization ERNEST BATEMAN and E. SUTER- 

 MEISTER, both at Washington, D. C. ; and A. L. DEAN, 93 Broad street, Boston, Mass. 



Studies in the heat conductivity of. wood FREDERICK DUNLAP, Washington, D. C. 



Compilation of Forest tables W. B. BARROWS, Washington, D. C. 



Study of markets and prices C. L. HILL, H. B. HOLROYD, and H. S. SACKETT, 

 all at Washington, D. C. ; FRANKLIN H. SMITH, Chicago, 111. 



Report on properties and uses of Douglas fir J. B. KNAPP, Washington, D. C. 



OFFICE OF WOOD PRESERVATION. 



CARL G/CRAWFORD, Chief.; 

 W. F.^SHERFESEE, Assistant Chief. 



Railroad and mine timbers, JOHN M. 



NELSON, Jr. 

 Research., HOWARD F. WEISS. 



Farm timbers, C. STOWELL SMITH. 

 National Forest timbers, WALTER R. 

 WHEATON. 



California 



Experiments in seasoning and treating telephone and other poles for electric 

 wires, in cooperation with electric companies in southern California O. T. SWAN, 

 Hotel Sequoia, Fresno; assistant, W. H. KEMPFER, 212 South Grand avenue, Los 

 Angeles. | 



Idaho 



Experiments in treating mine timbers, in cooperation w r ith the Bunker Hill and 

 Sullivan Mining and Concentrating Company H. A. PAUL, care S. A. EASTON, 

 Kellogg. 



Louisiana 



Preservative treatment of fence posts and other farm timbers, in cooperation with 

 the State Agricultural Experiment Stations H. B. EASTMAN, Washington, D. C. 



Pennsylvania 



Experiments in treating mine timbers, in cooperation with the Philadelphia and 

 Reading Coal and Iron Company JOHN M. NELSON, Jr., Washington, D. C. 



General Studies ] 



Correlation of data on the preservative treatment of American and foreign woods 

 M. C, JENSEN, Washington, D. C. 



Preparation of plans for proposed wood preservation laboratory H. F. WEISS, 

 Washington, D. C. 



Designs for proposed open-tank timber-treating plants for the National For- 

 ests C. P. WINSLOW, PAUL M. PAINE, and GEORGE G. OGIEB, all at Washington, 

 D. C. 



Study of methods of designing and operating treating plants CHARLES T. 

 BAENUM, Washington, D. C. 



