Experimental operation of a treating plant, in cooperation with the Indianapolis, 

 Columbus and Southern Traction Company C. P. WINSLOW, Columbus, Ind. 



Experimental operation of a commercial nonpressure plant for the treatment of 

 mine timbers, in cooperation with the Philadelphia and Reading Coal and Iron Com- 

 pany J. M. NELSON, Jr., Washington, D. C.; assistant detailed by the company, 

 L. W. Conrad, Pottsville, Pa. 



Design and construction of apparatus for the prevention of sap stain and for a wood- 

 preserving plant, in cooperation with the Great Southern Lumber Co. C. T. BARNUM, 

 Washington, D. C. 



Construction and experimental operation of a low-pressure wood-preserving plant, 

 in cooperation with the War Department, Picatinny Arsenal, Dover, N. J. (after 

 July 15). 



Special investigations into the supply and production of possible wood preserva- 

 tives E. W. PETEES, Washington, D. C. 



TIMBER TESTS 



ROLF THELEN, in Charge. 

 PROJECTS 



Timber- testing laboratory, New Haven, Conn., in cooperation with Yale Univer- 

 sity H. D. TIEMANN in charge; assistants, H. E. MCKENZIE and CORNELIUS BARRY; 

 W. D. BRUSH, microscopist: 



Study of the effect of drying on the strength and other properties of wood : 

 Study of the effect of drying on the absorption of water by wood; 

 Microscopic study of the mechanical failure of wood. 



Timber-testing laboratory, Lafayette, Ind., in cooperation with Purdue Univer- 

 sity W. K. HATT in charge; assistants, J. A. NEWLIN, J. O. BIXBY, THOMAS LYONS, 

 and HARRY WEYLS. 



Study of the effect of creosoting on the strength of southern pine, in cooperation 

 with the Illinois Central Railway; 



Study of the physical properties of several species of hickory, in cooperation with 

 the National Hickory Association. 



WOOD CHEMISTRY 



H. S. BRISTOL, in Charge. 

 H. E. SURFACE, Assistant. 



PROJECTS 



Study of methods of wood distillation and for the standardization and grading of 

 turpentines L. F. HAWLEY; Assistant, F. E. LICHTENTHAELER, both at Madison, 

 Wis. 



Experiments with various woods for paper pulp E. SUTERMEISTER; Assistant, 

 J. L. MERRILL, both at Washington, D. C. 



Study of wood preservatives and of chemical problems in wood utilization E. 

 BATEMAN; Assistant, C. F. SPEH, both at Washington, D. C. 



