﻿Plate 
  2 
  

  

  ad 
  metal 
  quarry 
  in 
  Grenvill 
  

   linie^fnne 
  bed 
  is 
  a 
  thin 
  one 
  in 
  

   the 
  dip, 
  here 
  75°. 
  A: 
  

   *h 
  irregular 
  contact 
  

   ckets 
  charac^ 
  

   )us 
  sandston'. 
  

  

  There 
  

  

  ■ 
  IT 
  ! 
  ^ 
  r 
  ■ 
  ■ 
  f- 
  ■ 
  ^ 
  _ 
  

  

  Potsaam 
  

   g- 
  one 
  of 
  

   iiilacis, 
  iiilcu 
  vMth 
  weakly 
  

   photo, 
  1907 
  

  

  