EDITORIAL BOARD 
The HoMB SiecRSTARY and the Foreign Secretary of the Academy 
The Chairman and the Permanent Secretary of the Nationai, 
Research Councii. 
WnxiAM DuANE, '23 
R. G. Harrison, *23 
J. C, Merriam, '23 
E. H. Moore. '23 
F. SCHLESINGER, '23 
W. M. Wheeler, '23 
F. L. Ransome, '23 
F. G. Cottrell 
A. L. Day, '22 J. M. Clarke, *21 
Gano Dunn, '22 Ludvig Hektoen, '21 
L. J. Henderson, '22 H. S. Jennings, *21 
W. J. V. OSTERHOUT, '22 R. A. MiLLIKAN, '21 
R. M. Yerkes, '22 W. A. Noyes, '21 
H. G. Gale A. D. Flinn 
E. B. Mathews V. C. Vaughan 
L. R. Jones C. K. Seashore 
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