﻿r88 
  .NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  deposits 
  are 
  very 
  well 
  shown, 
  one 
  on 
  the 
  east 
  side 
  of 
  the 
  valley 
  one 
  

   mile 
  north 
  of 
  Beseiner 
  depot, 
  and 
  a 
  second 
  about 
  the 
  same 
  distance 
  

   from 
  the 
  station 
  on 
  the 
  west 
  side. 
  Numerous 
  smaller 
  deposits 
  of 
  

   similar 
  character 
  are 
  found 
  along 
  the 
  valley 
  sides 
  of 
  Six 
  Mile 
  creek, 
  

   and 
  also 
  notches 
  of 
  an 
  irregular 
  form 
  but 
  of 
  a 
  correlative 
  height 
  

   cut 
  in 
  the 
  drift 
  and 
  possibly 
  representing 
  to 
  some 
  extent 
  the 
  result 
  

   of 
  wave 
  modification. 
  

  

  When 
  the 
  Danby 
  waters 
  were 
  added 
  to 
  the 
  White 
  Church 
  lake 
  

   and 
  glacial 
  lake 
  Ithaca 
  was 
  initiated, 
  practically 
  no 
  fall 
  in 
  the 
  

   White 
  Church 
  waters 
  occurred, 
  but 
  the 
  same 
  level 
  and 
  overflow 
  was 
  

   maintained 
  throuojhout 
  the 
  Ithaca 
  stao^e. 
  Hence 
  the 
  Brookton 
  

   delta 
  was 
  partly 
  built 
  during 
  the 
  White 
  Church 
  epoch 
  and 
  com- 
  

   pleted 
  during 
  that 
  of 
  lake 
  Ithaca. 
  This 
  delta, 
  which 
  is 
  one 
  of 
  the 
  

   largest 
  and 
  most 
  extensive 
  in 
  any 
  of 
  the 
  delta 
  series, 
  is 
  therefore 
  a 
  

   record 
  of 
  the 
  White 
  Church 
  as 
  well 
  as 
  the 
  Ithaca 
  lake 
  episode. 
  

   The 
  records 
  begun 
  by 
  the 
  waters 
  of 
  the 
  former 
  were 
  completed 
  by 
  

   those 
  of 
  the 
  latter. 
  

  

  Watkins 
  lake 
  stage 
  

  

  Markings 
  of 
  lake 
  level 
  : 
  

  

  Burdett, 
  1021 
  feet. 
  

   Lodi, 
  1015 
  feet. 
  

   Big 
  stream, 
  990 
  feet 
  

   Watkins, 
  969 
  feet. 
  

   North 
  Hector, 
  970 
  feet. 
  

  

  Havana. 
  Not 
  a 
  definite 
  terrace 
  but 
  a 
  distinct 
  till 
  plain 
  cov- 
  

   ered 
  with 
  considerable 
  water-worn 
  gravel. 
  968 
  feet. 
  

  

  Weed 
  creek. 
  Not 
  a 
  distinct 
  delta 
  in 
  outline 
  but 
  an 
  irregular 
  

   deposit 
  of 
  sand 
  and 
  gravel. 
  

  

  Evidence 
  and 
  history 
  of 
  lake. 
  The 
  outlet 
  to 
  glacial 
  lake 
  Watkins 
  

   was 
  near 
  the 
  village 
  of 
  Ilorseheads 
  with 
  an 
  elevation 
  of 
  900 
  feet. 
  

   This 
  stage 
  was 
  initiated 
  by 
  the 
  uncovering 
  of 
  the 
  Horseheads 
  divide 
  

   by 
  the 
  ice, 
  and 
  continued 
  until 
  the 
  waning 
  ice 
  sheet 
  had 
  retreated 
  

   north 
  of 
  the 
  town 
  of 
  Ovid, 
  when 
  the 
  waters 
  were 
  united 
  with 
  those 
  

   of 
  glacial 
  lake 
  Ithaca 
  to 
  inaugurate 
  the 
  initial 
  stage 
  of 
  glacial 
  lake 
  

   Newberry. 
  Abundant 
  evidence 
  confirms 
  the 
  existence 
  of 
  this 
  lake, 
  

   in 
  the 
  form 
  of 
  true 
  deltas 
  ; 
  unlike 
  conditions 
  above 
  and 
  below 
  the 
  water 
  

  

  