31 



Indiana 



Tests of structural timbers and a number of species of hickory, in "cooperation with 

 Purdue University, the Illinois Central Railway Company, and the National 

 Hickory Association W. K. HATT, La Fayette; assistants, J. A. NEWLIN, J. O. 

 BIXBY, WM. D. DUDDING, T. LYONS, and H. WEYLS. 



General Studies 



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. 



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



Study of wood-using industries and markets for forest products H. S. 

 SACKETT, Washington, D. C. ; FRANKLIN H. SMITH, Chicago, 111. 



Timber-test files T. W. VENEMANN, Washington, D. C. 



OFFICE OF WOOD PRESERVATION. 



TV. F. SHERFESEE. Chief (in the Field). 

 H. F. WEISS, Acting Chief. 



IPRO.TJEOT. 



Compilation of data on wood preservation M. C. JENSEN, Washington, D. C. 

 National Forest Timbers, WALTER R. WHEATON.. 



Colorado 



Experimental operation of a wood-preserving plant for National Forest timbers - 

 W. H. KEMPFER, Norrie. 



South Dakota- 



Experimental operation of a wood-preserving plant for National Forest timbers 

 GEORGE R. OGIER, Dead wood. 



Farm Timbers, C. STOWELL SMITH. 



District of Columbia 



Preservative treatment of greenhouse timbers, in cooperation with the Bureau of 

 Plant Industry HOWARD B. OAKLEAF, Washington, D. C. 



Iowa 



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

 the State College Experiment Station C. A. SCOTT, Ames. 



Maryland 



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

 the State Agricultural Experiment Station C. P. WILLIS, Washington, D. C. (until 

 August 14). 



South Carolina 



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

 the South Carolina Agricultural Experiment Station C. P. WILLIS, Clemsen (after 

 August 15). 



Railroad and Mine Timbers, JOHN M. NELSON, Jr. 



Alabama 



Construction and experimental operation of a commercial open-tank wood pre- 

 serving plant, in cooperation with the Tennessee Coal, Iron and Railroad Company 

 EDWARD H. FORD, Birmingham. 



California 



Experiments in seasoning and treating telephone poles, in cooperation with elec- 

 tric companies in southern California O. T. SWAN, Hotel Westmbore, Los Angeles. 



