﻿108 
  new 
  toek 
  state 
  museum 
  

  

  Part 
  3. 
  

  

  PAGE 
  

  

  EcoDomic 
  geology 
  181 
  

  

  BuildiDg 
  etone 
  181 
  

  

  Road 
  metal 
  204 
  

  

  Claj 
  and 
  claj 
  products 
  208 
  

  

  Shale 
  and 
  shale 
  products 
  214 
  

  

  Iron 
  ores 
  214 
  

  

  Lime 
  and 
  cement 
  222 
  

  

  Mineral 
  paint 
  222 
  

  

  Marl 
  223 
  

  

  Millstones 
  223 
  

  

  Salt 
  223 
  

  

  Gypsum 
  224 
  

  

  Graphite 
  22 
  i 
  

  

  Quartz 
  224 
  

  

  Glass 
  sand 
  225 
  

  

  Molding 
  sand 
  225 
  

  

  Garnet 
  225 
  

  

  Emery 
  226 
  

  

  Diatomaceous 
  or 
  Infusorial 
  earth 
  226 
  

  

  Talc 
  227 
  

  

  Peat 
  227 
  

  

  Petroleum 
  and 
  illuminating 
  gas 
  227 
  

  

  Natural 
  carbonic 
  acid 
  gas 
  228 
  

  

  Mineral 
  waters 
  229 
  

  

  Minerals 
  not 
  commercially 
  important 
  231 
  

  

  Part 
  4. 
  

  

  Suggestions 
  for 
  study 
  236 
  

  

  Geologic 
  text-books 
  and 
  books 
  of 
  reference 
  236 
  

  

  Field 
  work 
  238 
  

  

  The 
  natural 
  history 
  survey 
  of 
  New 
  York 
  and 
  the 
  origin 
  of 
  the 
  

  

  New 
  York 
  state 
  museum 
  240 
  

  

  Officers 
  of 
  the 
  state 
  museum 
  246 
  

  

  