﻿294 
  EEPORT 
  UNITED 
  STATES 
  GEOLOGICAL 
  SURVEY. 
  

  

  drainage, 
  even 
  better 
  than 
  usual, 
  and 
  in 
  the 
  spring: 
  frequently 
  gives 
  the 
  

   gTasses 
  and 
  winter 
  grains 
  twelve 
  to 
  fifteen 
  days 
  earlier 
  start 
  than 
  the 
  

   farms 
  of 
  the 
  adjoining 
  Permian. 
  IS^o 
  soil 
  in 
  the 
  State 
  is 
  so 
  easy 
  to 
  work 
  

   and 
  so 
  free 
  from 
  baking 
  or 
  the 
  ill 
  effects 
  of 
  drought. 
  The 
  eastern 
  half 
  

   embraces 
  the 
  best 
  wheat 
  land 
  in 
  the 
  State. 
  It 
  is 
  also 
  an 
  excellent 
  fruit 
  

   district. 
  The 
  iron 
  in 
  the 
  sandstone, 
  uniting 
  with 
  other 
  good 
  materials, 
  

   makes 
  it 
  particularly 
  favorable 
  to 
  pear 
  culture. 
  

  

  The 
  average 
  width 
  of 
  the 
  Dakota 
  is 
  less 
  than 
  50 
  miles, 
  being 
  some- 
  

   what 
  less 
  than 
  that 
  in 
  the 
  north 
  part 
  of 
  the 
  State, 
  and 
  more 
  on 
  the 
  

   Smoky 
  and 
  Arkansas 
  Elvers. 
  The 
  dip 
  is 
  to 
  northwest 
  and 
  very 
  slight. 
  

   It 
  is 
  difticult 
  to 
  decide 
  the 
  amount, 
  but 
  it 
  does 
  not 
  appear 
  to 
  be 
  on 
  the 
  

   average 
  more 
  than 
  5 
  feet 
  to 
  the 
  mile. 
  It 
  is 
  conformable 
  to 
  the 
  Fort 
  

   Hays 
  lime 
  formation 
  above 
  it. 
  It 
  corresponds 
  very 
  nearly 
  to 
  the 
  Creta- 
  

   ceous 
  of 
  Swallow's 
  Eeport, 
  p. 
  9, 
  and 
  also 
  to 
  Nos. 
  2 
  and 
  3 
  of 
  his 
  Triassic* 
  

   The 
  maximum 
  thickness 
  of 
  this 
  group 
  may 
  be 
  500 
  feet. 
  It 
  is 
  difficult 
  to 
  

   estimate 
  the 
  thickness, 
  as 
  the 
  larger 
  portion 
  of 
  the 
  material 
  consists 
  of 
  

   sandstone, 
  much 
  of 
  whicb 
  was 
  originally 
  thrown 
  down 
  in 
  oblique 
  deposits. 
  

  

  The 
  total 
  thickness 
  of 
  the 
  Cretaceous 
  in 
  Kansas 
  we 
  estimate 
  to 
  be 
  960 
  

   feet. 
  

  

  * 
  The 
  other 
  nonibers 
  of 
  his 
  Triassic 
  belong 
  to 
  the 
  Permio-Carboniferous. 
  

  

  