﻿COHOES 
  MASTODON. 
  

  

  145 
  

  

  Fig. 
  24. 
  

  

  side 
  of 
  e. 
  This 
  seems 
  the 
  same 
  phenomenon 
  that 
  was 
  noticed 
  

   before 
  (fig. 
  10, 
  p. 
  138), 
  and 
  I 
  see 
  no 
  hypothesis 
  to 
  meet 
  it 
  short 
  of 
  

   supposing 
  that 
  the 
  shale 
  was 
  so 
  yielding 
  

   as 
  to 
  be 
  able 
  to 
  accommodate 
  itself 
  to 
  an 
  

   uneven 
  surface. 
  The 
  same 
  condition 
  seems 
  

   to 
  be 
  demanded 
  by 
  the 
  combination 
  of 
  

   faults 
  just 
  alluded 
  to 
  (a, 
  b, 
  c). 
  

  

  A 
  little 
  further 
  down 
  the 
  shore 
  is 
  

   another 
  fault 
  worthy 
  of 
  note 
  (fig. 
  24). 
  It 
  

   is 
  nearly 
  in 
  the 
  direction 
  of 
  the 
  stratifica- 
  

   tion, 
  and 
  on 
  one 
  side 
  is 
  a 
  zone, 
  two 
  and 
  

   one-half 
  feet 
  wide, 
  of 
  parallel 
  joints 
  normal 
  

   to 
  the 
  fault. 
  

  

  Note 
  C. 
  — 
  For 
  a 
  half 
  mile 
  above 
  the 
  company's 
  dam, 
  on 
  the 
  

   east 
  side, 
  are 
  numerous 
  marshes 
  that 
  probably 
  cover 
  pot-holes. 
  

  

  