﻿38 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  The 
  deposits 
  are 
  worked 
  by 
  open-cast 
  or 
  quarry 
  methods. 
  

   Under 
  the 
  present 
  management 
  some 
  innovations 
  have 
  been 
  

   made 
  that 
  are 
  superior 
  as 
  regards 
  economy 
  over 
  the 
  ordinary 
  

   methods 
  in 
  use 
  in 
  the 
  Adirondack 
  region. 
  Instead 
  of 
  percussion 
  

   drills 
  of 
  small 
  caliber, 
  shot 
  drills 
  capable 
  of 
  boring 
  4 
  inch 
  holes 
  

   to 
  a 
  depth 
  of 
  50 
  feet 
  are 
  employed. 
  The 
  holes 
  are 
  heavily 
  loaded 
  

   with 
  dynamite 
  and 
  break 
  down 
  an 
  enormous 
  quantity 
  of 
  the 
  ore 
  

   at 
  one 
  time. 
  The 
  large 
  blocks 
  are 
  then 
  broken 
  up 
  by 
  secondary 
  

   drilling 
  and 
  blasting 
  into 
  sizes 
  within 
  the 
  capacity 
  of 
  the 
  crush- 
  

   ers. 
  The 
  ore 
  is 
  loaded 
  by 
  steam 
  shovel 
  on 
  to 
  cars 
  for 
  transport 
  

   to 
  the 
  mill, 
  where 
  the 
  first 
  crushing 
  is 
  performed 
  by 
  a 
  pair 
  of 
  6 
  foot 
  

   rolls. 
  The 
  ore 
  then 
  passes 
  to 
  smaller 
  rolls 
  which 
  reduce 
  it 
  to 
  the 
  

   size 
  required 
  in 
  the 
  separation. 
  

  

  The 
  company 
  intends 
  to 
  erect 
  a 
  new 
  mill 
  in 
  the 
  near 
  future, 
  

   ■f 
  the 
  results 
  of 
  present 
  operations 
  are 
  satisfactory. 
  The 
  ore 
  

   bodies 
  have 
  been 
  tested, 
  it 
  is 
  said, 
  to 
  a 
  depth 
  of 
  600 
  feet 
  on 
  the 
  

   dip, 
  without 
  encountering 
  any 
  marked 
  change 
  in 
  their 
  char- 
  

   acter. 
  

  

  Lake 
  mine. 
  The 
  Sterling 
  Irjon 
  & 
  Railway 
  Co. 
  operated 
  this 
  

   mine 
  during 
  1907. 
  The 
  ore 
  body 
  is 
  the 
  same 
  one 
  that 
  is 
  tapped 
  

   by 
  the 
  celebrated 
  Sterling 
  mine 
  which 
  was 
  located 
  in 
  1750 
  and 
  

   furnished 
  ore 
  for 
  a 
  local 
  furnace 
  built 
  the 
  following 
  year. 
  The 
  

   underground 
  workings 
  approach 
  to 
  within 
  a 
  few 
  feet 
  of 
  the 
  Ster- 
  

   ling 
  and 
  extend 
  under 
  Sterling 
  lake. 
  The 
  ore 
  is 
  a 
  non-Bessemer 
  

   fairly 
  rich 
  magnetite. 
  The 
  following 
  analysis 
  is 
  taken 
  from 
  

   Putnam's 
  report. 
  

  

  Iron 
  ,.'". 
  • 
  ... 
  57-25 
  

  

  Sulfur 
  "... 
  .088 
  

  

  Phosphorus 
  T 
  • 
  20 
  5 
  

  

  Manganese 
  present 
  

  

  MILLSTONES 
  

  

  A 
  small 
  output 
  of 
  millstones 
  is 
  made 
  each 
  year 
  in 
  Ulster 
  

   rounty, 
  where 
  the 
  industry 
  has 
  been 
  established 
  for 
  over 
  a 
  cen- 
  

   tury, 
  still 
  furnishing 
  a 
  great 
  part 
  of 
  the 
  domestic 
  millstones 
  used 
  

   In 
  this 
  country. 
  The 
  product 
  is 
  known 
  in 
  the 
  trade 
  as 
  Esopus 
  

   ^tone, 
  from 
  the 
  early 
  name 
  of 
  Kingston 
  which 
  was 
  once 
  the 
  

   principal 
  point 
  of 
  shipment. 
  

  

  The 
  millstones 
  are 
  quarried 
  from 
  the 
  Shawangunk 
  grit, 
  a 
  light 
  

   gray 
  quartz 
  conglomerate 
  found 
  along 
  the 
  Shawangunk 
  moun- 
  

   tain 
  from 
  near 
  High 
  Falls 
  southwest 
  toward 
  the 
  Pennsylvania 
  

  

  