﻿64:0 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  quadrangle 
  comes 
  to 
  the 
  surface 
  south 
  of 
  that 
  limit 
  and 
  flows 
  in 
  

   small 
  streams 
  to 
  the 
  sea 
  suggests 
  that 
  clays 
  are 
  there 
  immediately 
  

   beneath 
  the 
  surface 
  veneer 
  of 
  sand 
  and 
  fine 
  gravel. 
  

  

  The 
  surface 
  slopes 
  seaward 
  at 
  the 
  rate 
  of 
  about 
  15 
  feet 
  to 
  the 
  

   mile. 
  Aside 
  from 
  the 
  drainage 
  creases 
  above 
  referred 
  to, 
  no 
  other 
  

   lines 
  of 
  water 
  action 
  have 
  been 
  found 
  within 
  the 
  area. 
  The 
  line 
  of 
  

   contact 
  with 
  the 
  moraines 
  gradually 
  rises 
  from 
  west 
  to 
  east, 
  very 
  

   much 
  as 
  the 
  elevation 
  of 
  the 
  older 
  Pleistocene 
  increases 
  on 
  the 
  north 
  

   of 
  the 
  moraine. 
  Everywhere 
  the 
  plain 
  appears 
  to 
  rise 
  continuously 
  

   to 
  the 
  base 
  of 
  the 
  moraines. 
  The 
  only 
  possible 
  exception 
  to 
  this 
  

   statement 
  is 
  found 
  in 
  the 
  barlike 
  ridge 
  which 
  lies 
  northeast 
  of 
  Hicks- 
  

   ville 
  ; 
  but 
  the 
  northern 
  slope 
  of 
  this 
  bar, 
  much 
  steeper 
  on 
  the 
  whole 
  

   than 
  its 
  southeastern 
  face, 
  is 
  not 
  conclusively 
  to 
  be 
  compared 
  Avith 
  

   the 
  northern 
  margin 
  of 
  a 
  frontal 
  terrace 
  plain 
  such 
  as 
  that 
  of 
  

   I^antucket, 
  in 
  which 
  the 
  outwash 
  of 
  sand 
  and 
  gravel 
  has 
  carried 
  the 
  

   deposit 
  up 
  against 
  the 
  base 
  of 
  the 
  ice 
  front. 
  If 
  this 
  deposit 
  were 
  of 
  

   such 
  an 
  origin, 
  its 
  northern 
  slope 
  would 
  fix 
  the 
  front 
  of 
  the 
  ice 
  at 
  

   the 
  time 
  of 
  the 
  making 
  of 
  the 
  outer 
  line 
  of 
  morainal 
  deposits, 
  about 
  

   half 
  a 
  mile 
  in 
  front 
  of 
  the 
  submarginal 
  moraine, 
  and 
  this 
  gravel 
  bar 
  

   w^ould 
  somewhat 
  antedate 
  the 
  part 
  of 
  the 
  creased 
  plain 
  lying 
  to 
  the 
  

   west. 
  

  

  The 
  plain 
  everywhere 
  on 
  tlie 
  south 
  sinks 
  beneath 
  the 
  surface 
  of 
  

   the 
  marsh 
  without 
  trace 
  of 
  a 
  shore 
  line 
  action. 
  So 
  far 
  as 
  its 
  present 
  

   surface 
  is 
  concerned, 
  it 
  appears 
  to 
  have 
  arisen 
  by 
  the 
  outwash 
  of 
  

   streams 
  in 
  the 
  manner 
  of 
  those 
  extensive 
  sheets 
  of 
  gravel, 
  sand, 
  and 
  

   glacier 
  mud 
  which 
  confront 
  the 
  Malaspina 
  and 
  other 
  existing 
  gla- 
  

   ciers 
  in 
  high 
  latitudes 
  at 
  the 
  present 
  day. 
  

  

  With 
  the 
  completion 
  of 
  the 
  inner 
  moraine 
  and 
  the 
  sheeting 
  over 
  

   of 
  the 
  southern 
  outer 
  slope 
  with 
  gravels 
  and 
  sands 
  creased 
  by 
  out- 
  

   running 
  streams, 
  the 
  principal 
  work 
  of 
  the 
  ice 
  sheet 
  on 
  this 
  portion 
  

   of 
  tlie 
  island 
  ceased, 
  and 
  we 
  next 
  find 
  indications 
  of 
  its 
  front 
  farther 
  

   north 
  along 
  the 
  blufflike 
  descent 
  to 
  the 
  present 
  Long 
  Island 
  sound. 
  

   This 
  front 
  is 
  best 
  marked 
  at 
  Port 
  Washington 
  and 
  on 
  the 
  area 
  to 
  the 
  

   westward 
  shown 
  on 
  the 
  Harlem 
  and 
  Brooklyn 
  quadrangles. 
  

  

  Port 
  Washington 
  stage. 
  The 
  first 
  definite 
  trace 
  of 
  a 
  halt 
  

   in 
  the 
  ice 
  front 
  after 
  the 
  retreat 
  from 
  the 
  main 
  moraine 
  is 
  found 
  on 
  

   the 
  northern 
  and 
  western 
  extremity 
  of 
  Manhasset 
  neck 
  near 
  Port 
  

  

  