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' OF WOOD PRESERVATION. 



C. H. Teesdale, Engineer in Forest Products in dmrge. 



