FOREST SERVICE. 



Henry S. Graves, Forester. 

 Albert F. Potter, Associate Forester, 



BRANCH OF RESEARCH, 



Earle H. Clapp, Assistant Forester in charge. 



Forests Products Laboratory. 



Carlile P. Winslow, Director. 

 Ovid M. Butler, Assistant Director, 



section op tulp and paper. 



Otto Kress, In charge. 



