Vol. Vni No. 3 



February 4, 1918 



JOURNAL 



OP THE 



WASHINGTON ACADEMY 



OF SCIENCES 



BOARD OF EDITORS 

 Adolph Knopf A. S. Hitchcock J. Frankun Mbteb 



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Esteied at Becond-olaas matter July 14, Iflll, at the poet ofiSce at Baltimore, Maryland,' under the Aet of 



July 16, 1804 



