﻿22 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  dack 
  region 
  into 
  the 
  edge 
  of 
  the 
  Appalachian 
  plateau 
  south 
  of 
  the 
  

   Mohawk 
  river. 
  It 
  does 
  not, 
  however, 
  include 
  any 
  uplands 
  belonging 
  

   to 
  the 
  Helderberg 
  or 
  Catskill 
  regions, 
  although 
  these 
  are 
  near 
  at 
  

   hand 
  and 
  conspicuously 
  viewed 
  from 
  the 
  southern 
  boundary 
  of 
  the 
  

   area. 
  The 
  principal 
  drainage 
  of 
  the 
  area 
  is 
  through 
  the 
  Mohawk 
  

   river, 
  with 
  several 
  of 
  its 
  affluents, 
  principally 
  the 
  Schoharie, 
  while 
  

   the 
  Sacandaga 
  controls 
  the 
  drainage 
  of 
  a 
  part 
  of 
  the 
  northern 
  border. 
  

   The 
  northern 
  limit 
  is 
  nearly 
  marked 
  by 
  the 
  village 
  of 
  Northville, 
  

   while 
  Duanesburg 
  and 
  Esperance 
  villages 
  are 
  close 
  to 
  the 
  southern 
  

   border. 
  On 
  the 
  west 
  the 
  area 
  extends 
  just 
  beyond 
  the 
  Big 
  Xose 
  

   or 
  west 
  of 
  Yosts 
  Station. 
  

  

  Glacial 
  lobes. 
  Perhaps 
  the 
  most 
  salient 
  features 
  brought 
  out 
  by 
  

   the 
  investigation 
  of 
  the 
  territory 
  are 
  two 
  glacial 
  lobes, 
  one 
  a 
  part 
  

   of 
  the 
  great 
  Mohawk 
  glacier, 
  which 
  is 
  now 
  demonstrated 
  to 
  have 
  

   moved 
  westwardly 
  for 
  a 
  short 
  distance 
  up 
  the 
  Mohawk 
  valley 
  .and 
  

   what 
  may 
  be 
  called 
  a 
  Sacandaga 
  glacier, 
  moving 
  southerly 
  about 
  

   the 
  region 
  of 
  Northville, 
  swinging 
  toward' 
  the 
  "southwest 
  in 
  the 
  

   neighborhood 
  of 
  Mayfield, 
  rilling 
  into 
  affluent 
  westward 
  flow 
  with 
  

   the 
  Mohawk 
  glacier 
  about 
  Gloversville. 
  The 
  existence 
  of 
  such 
  a 
  

   westward 
  Mohawk 
  flow 
  was 
  postulated 
  by 
  Chamberlin 
  on 
  the 
  evi- 
  

   dence 
  which 
  was 
  at 
  hand 
  many 
  years 
  ago. 
  Further 
  advent 
  of 
  this 
  

   westward 
  movement 
  has 
  been 
  given 
  by 
  Professor 
  Brigham. 
  

  

  Conspicuous 
  evidence 
  of 
  this 
  movement 
  is 
  found 
  in 
  the 
  glacial 
  

   striae 
  which 
  are 
  well 
  distributed 
  throughout 
  nearly 
  the 
  entire 
  area. 
  

   About 
  60 
  localities 
  of 
  such 
  striae 
  have 
  been 
  found 
  and 
  recorded. 
  

   The 
  direction 
  is 
  not 
  on 
  the 
  average 
  greatly 
  variant 
  from 
  westward, 
  

   but 
  north 
  and 
  south 
  of 
  the 
  Mohawk 
  river 
  in 
  the 
  neighborhood 
  of 
  

   the 
  Big 
  Nose 
  there 
  are 
  interesting 
  divergences. 
  On 
  the 
  north 
  of 
  

   the 
  river 
  to 
  the 
  west-northwest 
  and 
  on 
  the 
  south 
  of 
  the 
  river 
  toward 
  

   the 
  west-southwest, 
  illustrating 
  the 
  axiradiant 
  flow 
  of 
  Chamberlin, 
  

   a 
  still 
  more 
  interesting 
  and 
  somewhat 
  puzzling 
  divergence 
  is 
  found 
  

   in 
  the 
  neighborhood 
  of 
  Galway 
  village 
  west 
  and 
  northward 
  where 
  

   some 
  of 
  the 
  striae 
  point 
  distinctly 
  toward 
  the 
  northwest 
  and 
  

   even 
  branch 
  toward 
  the 
  north-northwest. 
  As 
  the 
  glacier 
  apparently 
  

   came 
  around 
  into 
  the 
  Mohawk 
  valley 
  from 
  the 
  Hudson-Champlain 
  

   depression, 
  this 
  seems 
  a 
  curious 
  condition.- 
  What 
  possible 
  effects, 
  

   if 
  any, 
  of 
  local 
  glaciation 
  in 
  the 
  Berkshires 
  and 
  Catskills 
  may 
  have 
  

   produced 
  results 
  here, 
  remain 
  to 
  be 
  determined. 
  It 
  may 
  be 
  asked 
  

   whether 
  this 
  postulated 
  western 
  flow 
  might 
  not 
  have 
  been 
  a 
  flow 
  to 
  

   the 
  eastward 
  as 
  the 
  striae 
  themselves 
  do 
  not 
  ordinarily 
  give 
  special 
  

   evidence 
  as 
  to 
  whether 
  the 
  flow 
  was 
  in 
  one 
  direction 
  or 
  the 
  other, 
  

  

  