﻿70 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  figures 
  will 
  fairly 
  illustrate 
  this 
  class 
  of 
  implements, 
  though 
  some 
  

   others 
  may 
  be 
  described. 
  

  

  Fig. 
  177 
  is 
  of 
  a 
  slaty 
  sandstone, 
  and 
  has 
  an 
  unusually 
  deep 
  thick- 
  

   ened 
  back, 
  the 
  blade 
  being 
  quite 
  thin. 
  The 
  edge 
  has 
  been 
  broken, 
  

   and 
  this 
  and 
  the 
  grinding 
  required 
  to 
  keep 
  it 
  sharp, 
  have 
  interfered 
  

   with 
  the 
  perfect 
  curve. 
  It 
  was 
  found 
  west 
  of 
  Cross 
  Lake, 
  and 
  is 
  

   two 
  and 
  one 
  fourth 
  inches 
  deep 
  by 
  two 
  and 
  seven 
  eighths 
  wide. 
  

   These 
  thickened 
  backs 
  are 
  comparatively 
  rare. 
  Fig. 
  178 
  is 
  quite 
  

   unique, 
  being 
  of 
  a 
  black 
  and 
  very 
  hard 
  slate, 
  which 
  is 
  very 
  thick 
  in 
  

   comparison 
  with 
  others. 
  The 
  ends 
  have 
  been 
  broken, 
  and 
  the 
  back 
  

   is 
  rounded. 
  It 
  comes 
  from 
  the 
  Seneca 
  River, 
  and 
  its 
  present 
  size 
  

   is 
  three 
  inches 
  wide 
  by 
  one 
  and 
  one 
  eighth 
  deep. 
  

  

  Fig. 
  179 
  has 
  lost 
  about 
  a 
  third 
  of 
  its 
  width 
  which 
  was 
  origin- 
  

   ally 
  five 
  and 
  one 
  half 
  inches, 
  with 
  a 
  depth 
  of 
  two 
  inches. 
  It 
  is 
  of 
  

   brown 
  sandstone, 
  with 
  a 
  deep 
  and 
  thick 
  back. 
  This 
  is 
  from 
  the 
  

   Seneca 
  River. 
  Fig, 
  180 
  comes 
  from 
  near 
  Oneida 
  Lake, 
  and 
  has 
  no 
  

   thickening 
  of 
  the 
  nearly 
  straight 
  back. 
  It 
  is 
  of 
  grey 
  sandstone, 
  

   and 
  forms 
  nearly 
  a 
  half 
  circle, 
  two 
  and 
  one 
  fourth 
  by 
  six 
  and 
  one 
  

   eighth 
  inches. 
  A 
  few 
  others 
  may 
  be 
  described. 
  

  

  One 
  from 
  near 
  the 
  Seneca 
  River 
  is 
  of 
  thin 
  red 
  slate, 
  with 
  a 
  sim- 
  

   ple 
  back, 
  and 
  is 
  nearly 
  a 
  true 
  half 
  circle, 
  being 
  two 
  by 
  five 
  inches. 
  

   It 
  is 
  quite 
  sharp 
  and 
  symmetrical. 
  Another, 
  from 
  the 
  Oneida 
  River, 
  

   is 
  also 
  of 
  red 
  slate, 
  two 
  and 
  one 
  half 
  by 
  six 
  inches. 
  One 
  

   of 
  dark 
  slate, 
  from 
  Camden, 
  has 
  a 
  less 
  convex 
  edge 
  and 
  an 
  ir- 
  

   regular 
  back. 
  It 
  is 
  six 
  and 
  one 
  half 
  by 
  two 
  inches. 
  One 
  of 
  red 
  

   slate, 
  from 
  Oswego 
  County, 
  broken, 
  and 
  now 
  three 
  by 
  five 
  inches, 
  

   seems 
  to 
  have 
  been 
  originally 
  nine 
  and 
  one 
  fourth 
  by 
  three 
  and 
  one 
  

   fourth 
  inches. 
  Another, 
  from 
  the 
  same 
  county, 
  and 
  of 
  the 
  same 
  

   material, 
  has 
  an 
  irregular 
  back, 
  and 
  is 
  six 
  inches 
  wide 
  by 
  one 
  and 
  

   three 
  quarters 
  deep. 
  A 
  very 
  fine 
  one 
  of 
  red 
  slate, 
  found 
  on 
  the 
  

   Oneida 
  River, 
  is 
  perfect, 
  and 
  is 
  six 
  and 
  seven 
  eighths 
  by 
  three 
  inches, 
  

   with 
  a 
  thickness 
  of 
  a 
  quarter 
  of 
  an 
  inch. 
  

  

  Several 
  come 
  from 
  near 
  Lake 
  Champlain. 
  One 
  of 
  these, 
  of 
  mot- 
  

   tled 
  slate, 
  is 
  six 
  and 
  one 
  half 
  by 
  two 
  and 
  one 
  eighth 
  inches. 
  A 
  per- 
  

   fect 
  one 
  of 
  dark 
  slate 
  is 
  six 
  by 
  two 
  inches; 
  and 
  another, 
  which 
  has 
  

   a 
  thick 
  back, 
  is 
  five 
  inches 
  wide 
  by 
  two 
  and 
  three 
  fourths 
  deep. 
  

  

  