﻿ESDLicH.] 
  INTRODUCTION. 
  107 
  

  

  1875, 
  the 
  subjoined 
  report 
  has 
  been 
  divided 
  into 
  five 
  chapters 
  find 
  an 
  

   appendix. 
  The 
  first 
  chapter 
  treats 
  of 
  the 
  Saugre 
  de 
  Cristo 
  Eange 
  and 
  

   the 
  nuerfauo 
  region; 
  the 
  second 
  of 
  San 
  Lilis 
  Valley 
  ; 
  the 
  third 
  of 
  the 
  

   Sawatch 
  Range 
  ; 
  the 
  fourth 
  of 
  the 
  country 
  lying 
  near 
  the 
  tributaries 
  of 
  

   the 
  San 
  Juan, 
  and 
  the 
  fifth 
  of 
  the 
  Eaton 
  Hills 
  and 
  their 
  northern 
  exten- 
  

   sion. 
  In 
  the 
  ai^pendix 
  a 
  synopsis 
  of 
  the 
  evidences 
  of 
  the 
  glacial 
  period 
  

   in 
  Southern 
  Colorado 
  and 
  a 
  catalogue 
  of 
  minerals 
  of 
  Colorado 
  are 
  given, 
  

   as 
  complete 
  as 
  possible 
  up 
  to 
  date. 
  It 
  has 
  seemed 
  best 
  to 
  separate 
  the 
  

   district, 
  irrespective 
  of 
  drainage, 
  as 
  by 
  this 
  means 
  a 
  more 
  satisfactory 
  

   division 
  could 
  be 
  made. 
  The 
  groups 
  mentioned 
  contain 
  formations 
  

   closely 
  correlated, 
  and 
  in 
  order 
  to 
  present 
  a 
  more 
  general 
  view 
  of 
  the 
  

   entire 
  subject, 
  the 
  most 
  important 
  facts 
  will 
  be 
  reviewed 
  in 
  the 
  " 
  con- 
  

   clusion." 
  

  

  