FOREST SERVICE. 



HENRY S. GRAVES. Forester. 



ALBERT F. POTTER. Associate Forester. 



BRANCH OF RESEARCH. 



Earle H. Clapp, Assistant Forester in charge. 

 Forest Products Laboratory. 



Carlile p. Winslow, Director. 



Ovid M. Butler, Assistant Director. ^ 



section op timber mechanics. 



J. A. Newlin, Engineer in Forest Products in charge. 

 T. R. C. Wilson, Engineer in Forest Products. 



