﻿902 
  

  

  KEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Paving 
  brick 
  

  

  39 
  

  

  40 
  

   41 
  

  

  State 
  and 
  county 
  

  

  Missouri 
  y^cont'd') 
  

   Jackson 
  

  

  Henry. 
  

  

  Jackson 
  

   Johnson 
  

  

  Michigan: 
  

   Saginaw 
  

  

  Nebraska: 
  

   Otoe 
  

  

  New 
  Jersey: 
  

   Middlesex.. 
  

   Warren 
  . 
  . 
  . 
  . 
  

  

  New 
  York: 
  

   Onondaga. 
  

  

  Steuben. 
  

   Greene 
  . 
  . 
  

  

  Ohio: 
  

   Athens. 
  

  

  Richland. 
  

   Franklin. 
  

   Stark 
  

  

  Columbiana. 
  

   Jefferson. 
  . 
  . 
  

  

  Columbiana. 
  

   Jefferson 
  . 
  . 
  , 
  . 
  

  

  Hocking 
  

  

  Montgomery. 
  

  

  Pennsylvania 
  : 
  

   Beaver 
  

  

  Mercer. 
  

  

  Beaver. 
  

  

  Tennessee 
  : 
  

   Hamilton 
  

   Scott 
  

  

  Texas 
  : 
  

   Henderson. 
  

  

  West 
  Virginia 
  ; 
  

   Marion 
  

  

  Town 
  

  

  Kansas 
  City 
  . 
  

  

  Deepwater, 
  Mis- 
  

   souri 
  clay 
  CO 
  

  

  Kansas 
  City.. 
  

  

  Boyd's 
  pit 
  Knob- 
  

   noBter 
  

  

  Nebraska 
  City 
  

  

  Woodbriiige 
  

   Phillipsburg 
  

  

  Warner 
  

  

  Hornellsville 
  

   Cairo 
  , 
  

  

  Glouster. 
  

  

  Darlington 
  

  

  Columbus 
  

  

  Canton 
  

  

  North 
  Industry 
  . 
  

  

  I 
  land 
  siding. 
  . 
  

   East 
  Palestine. 
  

  

  Toronto 
  

  

  Elliottsville 
  . 
  . 
  . 
  

  

  Monaca. 
  . 
  . 
  . 
  

   Rochester 
  . 
  

   Sharon 
  . 
  . 
  . 
  . 
  

  

  Woodlawn 
  

  

  New 
  Brighton 
  . 
  

   Corry 
  

  

  Powdes 
  station. 
  

   Chattanooga... 
  

  

  Robbins 
  

  

  Morrisons. 
  

  

  Cumberland. 
  . 
  . 
  

   Nuzums 
  mills 
  

  

  Remarks 
  

  

  Carb. 
  shale 
  

  

  Gray 
  Bhale 
  . 
  

   Black 
  shale. 
  

  

  Clay. 
  

  

  Shale 
  , 
  

  

  Shale 
  clay. 
  

  

  Fireclay 
  . 
  

  

  Croxton 
  run 
  

  

  Hay 
  dens 
  ville 
  Shale 
  . 
  

  

  Brookville 
  Clay 
  . 
  . 
  

  

  Shale 
  clay 
  . 
  

  

  Red 
  shale 
  

  

  Blue 
  shale 
  . 
  

   Clay 
  

  

  Clay 
  

  

  Com- 
  

   bined 
  

  

  SILICA 
  

  

  Free 
  

  

  64.37 
  

  

  68.54 
  

   56.8 
  

  

  69.65 
  

  

  63. 
  

   54.5 
  

  

  61.68 
  

  

  42.23 
  

  

  56.78 
  

  

  44.74 
  

  

  52.3 
  

  

  67.29 
  

   68. 
  

  

  57.15 
  

  

  57.45 
  

  

  58.38 
  

  

  53.38 
  

  

  56.61 
  

  

  54.53 
  

  

  51.72 
  

  

  51.82 
  

  

  57.8 
  

  

  70 
  

  

  77.65 
  

  

  59.2 
  

  

  58.1 
  

  

  69.92 
  

  

  62.05 
  

  

  63.37 
  

  

  66 
  

  

  62.86 
  

  

  63.69 
  

   42.15 
  

   67.36 
  

   44.44 
  

  

  68.35 
  

   68.96 
  

  

  70.57 
  

  

  72.3 
  

  

  69.02 
  

   59.25 
  

  

  Alumina 
  

  

  19.73 
  

  

  18.49 
  

   25.7 
  

  

  30.41 
  

  

  21.8 
  

   5)0.75 
  

  

  31.41 
  

  

  39.53 
  

   17.38 
  

  

  18.7 
  

   18.85 
  

  

  15.85 
  

   15 
  

  

  20.26 
  

  

  21.06 
  

  

  20.89 
  

  

  19.36 
  

  

  21.63 
  

  

  27.88 
  

  

  30.1 
  

  

  28.69 
  

  

  25.54 
  

  

  19.35 
  

  

  12.78 
  

  

  26.1 
  

  

  29.6 
  

  

  23.46 
  

  

  27.71 
  

  

  19.08 
  

  

  23.1 
  

  

  20.65 
  

  

  23.9 
  

   31.43 
  

   22.05 
  

   26.84 
  

  

  12.96 
  

   20.42 
  

  

  15.19 
  

  

  19.33 
  

  

  23.07 
  

   32. 
  a6 
  

  

  Ferric 
  

   ox 
  id 
  

  

  9.07 
  

  

  3.38 
  

   6 
  

  

  2.11 
  

  

  8.5 
  

  

  7.oe 
  

  

  .5 
  

   .6 
  

  

  4.25 
  

   6.55 
  

  

  6.16 
  

   12 
  

  

  7.54 
  

  

  7.54 
  

   5.78 
  

   14 
  86 
  

   7.08 
  

   2.41 
  

   1.94 
  

   2.77 
  

   2.51 
  

   2.22 
  

   3.32 
  

  

  6.43 
  

  

  .65 
  

  

  9.21 
  

  

  3.57 
  

   2.32 
  

   5.61 
  

   8.1 
  

  

  6 
  44 
  

   1.84 
  

  

  7.97 
  

   2.47 
  

  

  4.53 
  

   1.67 
  

  

  