﻿LIMESTONES 
  OP 
  NEW 
  YORK 
  AND. 
  THEIR 
  ECONOMIC 
  VALUE 
  449 
  

  

  No. 
  1 
  shows 
  the 
  composition 
  of 
  lime 
  made 
  from 
  the 
  stone 
  in 
  

   E. 
  B. 
  Alvord 
  & 
  Co.'s 
  quarry 
  at 
  Jamesville, 
  the 
  analysis 
  being 
  

   made 
  by 
  F. 
  E. 
  Englehart. 
  

  

  Lime 
  91.93 
  

  

  Magnesia 
  3 
  . 
  06 
  

  

  Insoluble 
  1.88 
  

  

  Sulfuric 
  anhydrid 
  .73 
  

  

  Ferric 
  oxid 
  and 
  alumina 
  2 
  . 
  03 
  

  

  99.63 
  

   Another 
  analysis 
  of 
  an 
  average 
  sample 
  gave: 
  

  

  Silica 
  1.60 
  

  

  Alumina 
  and 
  ferric 
  oxid 
  .70 
  

  

  Lime 
  carbonate 
  97 
  . 
  00 
  

  

  Magnesian 
  carbonate 
  . 
  1 
  . 
  11 
  

  

  101.78 
  

   This 
  same 
  quarry 
  also 
  contains 
  several 
  layers 
  of 
  cement 
  rock, 
  

   of 
  which 
  the 
  following 
  are 
  analyses: 
  

  

  Upper 
  Lower 
  

  

  layer 
  layer 
  

  

  Silica 
  10.97 
  10.95 
  

  

  Alumina 
  . 
  4.46 
  5.32 
  

  

  Ferric 
  oxid 
  1.54 
  1.30 
  

  

  Lime 
  27.51 
  30.92 
  

  

  Magnesia 
  16.90 
  13.64 
  

  

  Carbon 
  dioxid 
  37.94 
  38.31 
  

  

  99.32 
  100.00 
  

   The 
  composition 
  of 
  the 
  blue 
  limestone 
  in 
  the 
  Split 
  rock 
  quarry 
  

   of 
  the 
  Solvay 
  co. 
  is 
  as 
  follows 
  : 
  

  

  Silica 
  5.35 
  

  

  Alumina 
  .56 
  

  

  Ferric 
  oxid 
  .61 
  

  

  Carbonate 
  of 
  lime 
  85 
  .41 
  

  

  Magnesian 
  carbonate 
  18 
  . 
  86 
  

  

  100.79 
  

  

  In 
  Rockland 
  and 
  Orange 
  counties 
  there 
  begins 
  another 
  series 
  of 
  

  

  belts 
  of 
  the 
  Calciferous 
  limestone 
  formation 
  which 
  extend 
  in 
  a 
  

  

  northeasterly 
  direction. 
  These 
  same 
  belts 
  continue 
  across 
  the 
  

  

  river 
  into 
  Dutchess 
  co. 
  and 
  also 
  extend 
  up 
  into 
  Columbia 
  co. 
  

  

  