﻿Quart. 
  Jo 
  urn. 
  Geol. 
  Soc 
  .V 
  I 
  ; 
  

  

  Miss 
  J. 
  Donald, 
  del 
  ?' 
  K 
  Michael 
  iith.. 
  Mintem 
  Bros 
  imp. 
  

  

  CARBONIFEROUS 
  GASTEROPC 
  D 
  

  

  