EDITORIAL BOARD 
The HoMB Sbcrbtary and the Foreign Sbcrktary of the Academy 
The Chairman and the Permanent Secretary of the Nationai, 
Research Councii, 
J. M. CIvArke 
A. L. Day 
R. Dodge 
W. Duane 
G. Dunn 
N. M. Fenneman 
A. D. Funn 
F. P. Gay 
R. G. Harrison 
I/. J. Henderson 
F. R. L11.UE 
E. H. Moore 
W. J. V. OSTERHOUT 
F. SCH1.ESINGER 
E. W. Washburn 
W. M. WheeivEr 
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