EDITORIAL BOARD 
The HoMB Sbcrbtarv and the Forbign Secrbtahy of the Acadrmy 
The Chairman and the Permanent Secretary of the National 
Research Council 
J. M. Clarke 
A. L. Day 
R. Dodge 
W. DUANE 
G. Dunn 
N. M. Fenneman 
A. D. Flinn 
F. P. Gay 
R. G. Harrison 
I^. J. Henderson 
F. R. LiLLIE 
E. H. Moore 
W. J. V. OSTERHOUT 
F. SCHLESINGER 
E. W. Washburn 
W. M. Wheeler 
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