﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  67, 
  ART. 
  19 
  PL. 
  8 
  

  

  56 
  

  

  TONGUES 
  OF 
  VARIOUS 
  BIRDS. 
  <NCS. 
  59 
  AND 
  61 
  X 
  2, 
  OTHERS 
  X3> 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  page 
  17 
  

  

  