﻿PROCEEDINGS 
  

  

  CALIFORNIA 
  ACADEMY 
  

  

  SCIEISrCES 
  

  

  VOLUME 
  V. 
  

  

  PART 
  II. 
  

  

  isrs. 
  

  

  

  SAN 
  FRANCISCO 
  

  

  Januaisy, 
  1874. 
  

  

  :3>^ 
  

  

  