﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  67, 
  ART. 
  19 
  PL. 
  5 
  

  

  31 
  

  

  34 
  

  

  Tongues 
  of 
  Various 
  Birds. 
  (No. 
  35 
  Natural 
  Size. 
  Others 
  X2) 
  

  

  For 
  explanation 
  of 
  

  

  fE 
  SEE 
  PAGE 
  13 
  

  

  