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Vou. 13 May 19, 11923 No. 10 
JOURNAL 
OF THE 
WASHINGTON ACADEMY 
OF SCIENCES 
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E. P. Kinzie 
Smwnny Paice E. D. WriulaMson 
GEOLOGICAL SURVEY GEOPHYSICAL LABORATORY NATIONAL MUSEUM 
ASSOCIATE EDITORS 
H. V. HARLAN S. A. RoHWwER 
ENTOMOLOGICAL SOCIETY 
BOTANICAL SOCIETY 
N. Ho.iistar G. W. Strosp 
BIOLOGICAL SOCIDTY GEOLOGICAL SOCIETY 
J. R. SwANTON 
W. F. Mraaours. 
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