﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  67, 
  ART. 
  9 
  PL. 
  24 
  

  

  : 
  UP'' 
  

  

  t 
  

  

  m 
  m 
  

  

  Unusual 
  Forms 
  of 
  Fossil 
  Crinoids 
  

  

  For 
  explanation 
  of 
  plate 
  see 
  page 
  131 
  

  

  