Vol. VI No. 1 



January 4, 1916 



JOUENAL 



OF THE 



WASHINGTON ACADEMY 



OF SCIENCES 



BOARD OF EDITORS 

 Fred. E. Wbight William R. Maxon Edson S. Bastxm 



OEOPHTSICAX LABOKATOKT RATIONAL MCMCil OXOLOOICAI. HUBVBT 



PUBLISHED SEMI-MONTHLY 

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



BT TH» 



WASHINGTON ACADEMY OF SCIENCES 



OFFICE OF PUBLICATION 



THE WAVERLY PRESS 



BALTIMORE, MD. 



Entered as saoond-ciaas natter July 14, 1911, at the post office at Baltimore, Maryland, under toe Aot of 



July 16, 1894 



