﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  67, 
  ART. 
  I 
  PI 
  

  

  IS3 
  179 
  

  

  Structural 
  Details 
  of 
  Ghilianella 
  

  

  for 
  explanation 
  of 
  plate 
  see 
  page 
  151 
  

  

  150 
  

  

  