Vol. V No. 1 



January 4, 1915 



JOURNAL 



OP THE 



WASHINGTON ACADEMY 

 OF SCIENCES 



BOARD OF EDITORS 



Carl S. Scopield Fred. Eugene Wright William R. Maxon 



btrsbau op plant indu8tbt qeophyaical labokatobt national mcbexjm 



PUBLISHED SEMI-MONTHLY 

 EXCEPT IN JULY, AUGUST, AND SEPTEMBER. WHEN MONTHLY, 



BTTHK 



WASHINGTON ACADEMY OF SCIENCES 



OFFICE OF PUBLICATION 



THE WAVBRLY PRESS 



BALTIMORE, MD. 



