﻿1*84: 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  strongly 
  marked 
  near 
  Cayutaville 
  in 
  the 
  Cajuta 
  lake 
  valley, 
  and 
  

   again 
  in 
  the 
  Seneca 
  valley 
  to 
  the 
  south 
  of 
  Watkins. 
  

  

  Apparently, 
  a 
  second 
  halt 
  is 
  represented 
  in 
  a 
  very 
  meagerly 
  

   developed 
  moraine 
  just 
  south 
  of 
  the 
  town 
  of 
  Ovid, 
  some 
  20 
  miles 
  

   north 
  of 
  Itliaca. 
  The 
  Ovid 
  moraine 
  may 
  have 
  its 
  correlative 
  to 
  the 
  

   east, 
  in 
  the 
  Owasco 
  valley 
  between 
  Groton 
  and 
  Locke, 
  where 
  it 
  has 
  

   attained 
  a 
  somewhat 
  moderate 
  but 
  conspicuous 
  degree 
  of 
  develop- 
  

   ment. 
  On 
  the 
  west 
  it 
  seems 
  to 
  have 
  its 
  correlative 
  part 
  in 
  the 
  

   Gorham 
  karae 
  area 
  found 
  to 
  the 
  south 
  of 
  the 
  town 
  of 
  Gorham 
  in 
  

   the 
  Flint 
  creek 
  valley. 
  

  

  There 
  seem 
  to 
  be 
  some 
  evidences 
  of 
  a 
  third 
  halt 
  in 
  the 
  ice 
  

   immediately 
  north 
  of 
  the 
  present 
  lakes, 
  in 
  the 
  form 
  of 
  distinct 
  

   moral 
  nal 
  deposits. 
  

  

  The 
  most 
  significant 
  fact 
  indicated 
  by 
  the 
  lack 
  of 
  development 
  of 
  

   these 
  morainal 
  masses 
  is, 
  since 
  they 
  almost 
  certainly 
  indicate 
  or 
  prove 
  

   briefness 
  in 
  ice 
  halt, 
  that 
  they 
  suggest 
  as 
  strongly, 
  briefness 
  in 
  the 
  

   various 
  lake 
  stages 
  held 
  up 
  by 
  the 
  retreating 
  ice 
  front. 
  

  

  Evidence 
  supporting 
  the 
  general 
  lake 
  hypothesis 
  

  

  The 
  facts 
  supporting 
  this 
  hypothesis 
  and 
  which 
  serve 
  as 
  criteria 
  

   are 
  here 
  classified 
  under 
  the 
  following 
  headings 
  : 
  

  

  1 
  Possible 
  berg 
  deposits. 
  

  

  2 
  Lake 
  clays 
  and 
  silts. 
  The 
  necessary 
  result 
  of 
  lacustrine 
  deposi- 
  

   tion. 
  

  

  3 
  Unlike 
  conditions 
  in 
  the 
  materials 
  found 
  above 
  and 
  below 
  the 
  

   line 
  of 
  highest 
  water 
  level. 
  This, 
  however, 
  is 
  not 
  always 
  well 
  

   marked 
  and 
  the 
  differentiation 
  in 
  most 
  cases 
  is 
  difficult 
  if 
  not 
  quite 
  

   impossible. 
  

  

  4 
  Strongly 
  defined 
  overflow 
  channels, 
  through 
  which 
  the 
  glacial 
  

   lake 
  waters 
  drained. 
  TJie 
  channels 
  are 
  distinctly 
  shown 
  and 
  are 
  

   easily 
  traceal)le, 
  thus 
  affording 
  rather 
  strong 
  evidence 
  in 
  favor 
  

   of 
  the 
  once 
  existent 
  glacial 
  lakes. 
  

  

  5 
  Shorelines. 
  These 
  are 
  for 
  the 
  most 
  part 
  constructional 
  fea- 
  

   tures 
  in 
  the 
  form 
  of 
  delta 
  terraces. 
  Some 
  probable 
  destructional 
  

   forms 
  in 
  the 
  way 
  of 
  till 
  cuttings 
  as 
  benches 
  formed 
  in 
  part 
  by 
  wave 
  

   action 
  and 
  occupying 
  the 
  interstream 
  areas, 
  where 
  the 
  drift 
  is 
  

   heaviest, 
  are 
  apparently 
  shown. 
  The 
  most 
  significant 
  and 
  reliable 
  

   of 
  these 
  are 
  the 
  delta 
  terraces. 
  They 
  show 
  not 
  only 
  a 
  very 
  close 
  

  

  