FOREST SERVICE. 



WILLIAM B. GREELEY, Forester. 

 EDWARD A. SHERMAN, Associate Forester. 



BRANCH OF RESEARCH. 



Eable H. Clapp, Assistant Forester m charge. 



Foeest Pboducts Labobatoby. 

 Caelixe P. Winslow, Director. 



Section of timbeb physics. 



Rolf Thelen, In charge. 

 Eloise Gebby, Microscopist, 



