Vol,. 9 October 4, 1919 No. i6 



JOURNAL 



OF THE 



WASHINGTON ACADEMY 

 OF SCIENCES 



BOARD OF EDITORS 



m 



A, S. Hitchcock J. Franklin Meyer R. B. Sosmah 



BDKBAD OP PLAKT INDUBTRT BUKSAO OP BTANDAKOB GBOPBVSICAI, LABOBATOR* 



ASSOCIATE EDITORS 



H. V. Hari^n Sidney Paige 



BOTANICAL aOCtSTY GBOLOOICAI. BOCtSTV 



N. HoLLISTER S. A- ROHWBR 



BIOLOOICAI, SOCISTV BNT01I0U>0ICAI, BOCISTT 



• E. C. McKEtvY F. B. SasBEB 



GB8UICAI, SQCIBTY PHIbOBOPHICAL BOCIBtT 



J. R. SWANTON 



ANTBKOPOI.OGICAI, SOCIBTY 



PUBLISHED SBMI-MONTHLY 

 EXCEPT IN JXJtY, AUGUST, AND SEPTEMBER, WHEN MONTHLY 



BY THB 



WASHINGTON ACADEMY OF SCIENCES 



OFFICE OF PUBLICATION 



211 CHURCH STREET 



EASTON, PA. 



Bntered h Second Class Matter, January 25, 1919. at the post-office at Easton, Pa., under the 

 Act of August 24, 1912. Acceptance for mailing at special rate of postage provided for In 

 Section 1 103. Act of October 3. 1917. Authorixed on July 3. 1918 



