LETTER OF TRANSMITTAL. 



U. S. DEPARTMENT OF AGRICULTURE, 



FOREST SERVICE, 



Washington, D. C., March 15, 1912. 



SIR: I have the honor to transmit herewith a manuscript entitled 

 " Distillation of Resinous Wood by Saturated Steam," by L. F. 

 Ilawley, chemist in forest products, and R. C. Palmer, assistant 

 chemical engineer in forest products, and to recommend its publica- 

 tion as Bulletin 109 of the Forest Service. 



The investigation was carried on at the Forest Products Laboratory, 

 maintained in cooperation with the University of Wisconsin. 

 Respectfully, 



HENRY S. GRAVES, 



Forester. 

 Hon. JAMES WILSON, 



Secretary of Agriculture. 



