FOREST SERVICE. 
WILLIAM B. GREELEY, Forester. 
EDWARD A. SHERMAN, Associate Forester. 
BRANCH OF RESEARCH. 
Earle H. Clapp, Assistant Forester in charge. 
Foeest Products Laboratory. 
Caelile P. Winslow, Director. 
Section of timber physics. 
Rolf Thelen, In charge. 
Eloise Gerry, Microscopist, 
