﻿Vol. 
  12 
  January 
  4, 
  1922 
  No. 
  i 
  

  

  JOURNAL 
  

  

  OF 
  THB 
  

  

  WASHINGTON 
  ACADEMY 
  

   OF 
  SCIENCES 
  

  

  BOARD 
  OF 
  EDITORS 
  

  

  S. 
  F. 
  Bi^AEB 
  Sidney 
  Paige 
  E. 
  D. 
  Williamson 
  

  

  BUKBAU 
  0» 
  PI.ANT 
  INDUSTB7 
  OSOI^OOICAI, 
  SURVSY 
  OSOPBYSICAl, 
  I^ABORATORV 
  

  

  ASSOCIATE 
  EDITORS 
  

  

  H. 
  V. 
  Harlan 
  S. 
  A. 
  Rohwbr 
  

  

  BOTAKICAL 
  SOCISTV 
  INTOMOLOOICAL 
  SOaSTI 
  

  

  N. 
  HOUJSTBR 
  G. 
  W. 
  Stosb 
  

  

  BICNbOOICAl, 
  SOCISTV 
  OBOLOOICAI, 
  SOCtBTV 
  

  

  W. 
  F. 
  Meggers 
  J. 
  R. 
  Swanton 
  

  

  PHILOSOPHICAL 
  aOCIITy 
  ANTHKOPOLOOICAI. 
  ■OGISTV 
  

  

  PUBUSHBD 
  SSUI-MOMTHLT 
  

   EXCEPT 
  IN 
  JULY, 
  AUGUST, 
  AND 
  SEPTEHBBRr 
  WHEN 
  MONTHLY 
  

  

  BY 
  THB 
  

  

  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  

  

  OPPICE 
  OP 
  PUBLICATION 
  

  

  311 
  CHURCH 
  STRBBT 
  

  

  SASTON, 
  PA. 
  

  

  Bnttrcd 
  u 
  Second 
  Class 
  Matter, 
  January 
  2S, 
  I9I9, 
  at 
  the 
  post-office 
  at 
  Baston, 
  Pa., 
  andar 
  th* 
  

  

  ▲et 
  of 
  Angutt 
  24, 
  1912. 
  Acceptance 
  for 
  mailing 
  at 
  special 
  rate 
  of 
  postage 
  provided 
  fot 
  

  

  ia 
  Section 
  1103, 
  Act 
  of 
  October 
  3, 
  1917. 
  Authorised 
  oo 
  Tuly 
  3, 
  1918. 
  

  

  