﻿280 
  

  

  Forty- 
  seventh 
  Report 
  on 
  the 
  State 
  Museum. 
  

  

  978' 
  

  

  20' 
  6" 
  Gray 
  limestone 
  as 
  above, 
  with 
  the 
  chert 
  decreasing 
  

   slightly 
  in 
  quantity 
  and 
  more 
  regularly 
  distributed 
  — 
  a 
  few 
  

   layers 
  occurring. 
  From 
  995 
  it 
  rapidly 
  diminishes, 
  and 
  at 
  

   998' 
  6" 
  disappears. 
  

  

  Fossils 
  very 
  rare. 
  

  

  