﻿Verritt 
  — 
  Notes 
  on 
  the 
  Geology 
  of 
  the 
  Bermudas. 
  317 
  

  

  The 
  outer 
  line 
  of 
  reefs, 
  on 
  the 
  northern 
  side, 
  encloses 
  a 
  great 
  

   bay 
  of 
  shallow 
  water, 
  very 
  much 
  obstructed 
  by 
  innumerable 
  

   flat 
  reefs, 
  large 
  and 
  small, 
  many 
  of 
  which 
  are 
  nearly 
  or 
  quite 
  

   bare 
  at 
  very 
  low 
  tides. 
  But 
  several 
  considerable 
  areas 
  exist 
  in 
  

   this 
  bay, 
  where 
  the 
  depth 
  is 
  from 
  6 
  to 
  12 
  fathoms 
  (rarely 
  14) 
  

   and 
  the 
  bottom 
  is 
  composed 
  of 
  fine 
  calcareous 
  mud 
  and 
  shell- 
  

  

  Figure 
  3. 
  — 
  Pinuacle 
  rock 
  of 
  aeolian 
  limestone 
  on 
  South 
  shore, 
  showing- 
  sand- 
  

   drift 
  stratificatiou, 
  above, 
  and 
  the 
  deeply 
  pitted, 
  rough, 
  hard 
  surface 
  below, 
  infil- 
  

   trated 
  aod 
  coated 
  with 
  calcite. 
  

  

  sand. 
  (See 
  map, 
  areas 
  I- 
  VI.) 
  Castle 
  Harbor 
  and 
  Harring- 
  

   ton 
  Sound 
  also 
  contain 
  areas 
  of 
  similar 
  depth 
  and 
  character 
  of 
  

   bottom, 
  the 
  latter 
  being 
  the 
  deeper. 
  

  

  The 
  interior 
  of 
  the 
  larger 
  islands 
  is 
  hilly 
  and 
  irregular, 
  

   some 
  of 
  the 
  hills 
  being 
  200 
  to 
  268 
  feet 
  high. 
  Nearly 
  the 
  

   whole 
  of 
  the 
  southern 
  side 
  of 
  the 
  larger 
  islands 
  is 
  composed 
  of 
  

   high 
  precipitous 
  cliffs, 
  with 
  a 
  few 
  small 
  coves. 
  Similar 
  but 
  

   less 
  elevated 
  cliffs 
  form 
  much 
  of 
  the 
  north 
  shore, 
  but 
  are 
  not 
  

   so 
  continuous. 
  The 
  rocks 
  are 
  almost 
  everywhere 
  rather 
  soft 
  

  

  