﻿THIED 
  REPOET 
  JJ.S.EITTOKOLOG-ICAL 
  COMMISSION, 
  

  

  PLATE 
  XX: 
  

  

  Heliolyp" 
  Printinrj 
  Cot 
  Br 
  s 
  

  

  ORTli6PTESA:MES0 
  AlvTD 
  METASTERIIUM. 
  

  

  