Vol.. 9 



January 4, 19 19 



No. 1 



JOURNAL 



OF THE 



WASHINGTON ACADEMY 



V 



OF SCIENCES 



Adolph Knopp 



OBOI<OGICAI. SURVEY 



BOARD OF EDITORS 

 A. S. Hitchcock 



BUREAU OP PLANT INDUSTRY 



J. Franki,in M^YER 



BUREAU OP STANDARDS 



ASSOCIATE EDITORS 



N. HOLUSTER 



BIOLOGICAI. SOCIETY 



J. B. Norton 



BOTANICAL SOCIETY 



Sidney Paige 



GEOLOGICAL SOCIETY 



S. A. ROHWER 

 ENTOMOLOGICAL SOCIETY 



F. B. SiLSBEE 



PHILOSOPHICAL SOCIETY 



R. B. SOSMAN 



CHBMICAL SOCIETY 



J. R. SWANTON 



ANTHROPOLOGICAL SOCIETY 



PUBLISHED SEMI-MONTHLY 

 EXCEPT IN JULY, AUGUST, AND SEPTEMBER, WHEN MONTHLY 



\ BY THE 



WASHINGTON ACADEMY OF SCIENCES 



OFPICE OP PUBLICATION 



211 CHURCH STREET 



EASTON, PA. 



Application for transfer of entry as Second Class Matter made at the post-office at Easton, Pa., under 

 the Act of July 16, 1894. Acceptance for mailing at special rate of postage provided for in Sec- 

 tion 1 103. Act of October 3, 1917. Authorized on July 3, 1918 



