﻿250 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Halite, 
  see 
  Rock 
  salt. 
  

  

  Hall, 
  James, 
  statements 
  quoted, 
  110^; 
  

  

  acknowledgement 
  to, 
  lll^; 
  geologic 
  

  

  reports, 
  2366 
  ; 
  geologist, 
  241^ 
  ; 
  curator 
  

  

  of 
  museum, 
  2441. 
  

   Hamilton 
  group, 
  1622-641, 
  1918-923; 
  

  

  shale, 
  1631. 
  

   Haverstraw 
  stone, 
  195^. 
  

   Helderberg 
  rocks, 
  1567-581. 
  

   Hematite, 
  122^, 
  2192. 
  

   Highlands, 
  formation, 
  1245, 
  1392, 
  1396^ 
  

  

  1408 
  ; 
  magnetic 
  iron 
  ores, 
  2168-185. 
  

   Historic 
  geology, 
  1263-279. 
  

   Hornblende, 
  1215, 
  1251, 
  182*, 
  2049-51. 
  

   Hornstone, 
  173^. 
  

   " 
  Horses," 
  2173. 
  

  

  Hudson 
  river, 
  carbonate 
  ores, 
  2219-22*. 
  

   Hudson 
  river 
  bluestone, 
  192*. 
  

   Hudson 
  river 
  sandstone, 
  188*. 
  

   Hudson 
  river 
  group, 
  1493-50*. 
  

   Hudson 
  valley, 
  clays, 
  210^-11^. 
  

   Hunt, 
  T. 
  S., 
  quoted, 
  1176. 
  

   Hydraulic 
  cement, 
  1565. 
  

   Hydromica 
  schist, 
  1261. 
  

   Hypersthene, 
  1222, 
  1251- 
  

  

  Ice 
  age, 
  1759-772. 
  

  

  Igneous 
  rocks, 
  1232, 
  1241-253, 
  constitu- 
  

   ents, 
  122*. 
  

  

  Hluminating 
  gas, 
  2279, 
  

  

  Infusorial 
  earth, 
  2268. 
  

  

  Iron 
  age, 
  179^. 
  

  

  Iron 
  ores, 
  214*-22*; 
  localities 
  produc- 
  

   ing, 
  2319. 
  

  

  Jefferson 
  county, 
  sandstone, 
  1452; 
  

   Black 
  river 
  limeston©, 
  148^; 
  hema- 
  

   tite, 
  2192. 
  

  

  Jewett, 
  Ezekiel, 
  curator 
  of 
  museum, 
  

   2436; 
  resignation, 
  2441. 
  

  

  Jurassic 
  system, 
  1723-732; 
  life 
  of, 
  1726- 
  

   732. 
  

  

  Kaolin 
  deposits, 
  2132. 
  

  

  Kaolinite, 
  120'^. 
  

  

  Kemp, 
  J. 
  F., 
  Geology 
  of 
  Moriah 
  and 
  

  

  Westpori 
  townships, 
  2146. 
  

   Kittatinny 
  mountains, 
  formation, 
  ISl*. 
  

  

  Labradorite, 
  1212. 
  

  

  Lake 
  Champlain, 
  iron 
  ores, 
  2186-191. 
  

  

  Lake 
  Mohonk, 
  on 
  Shawangunk 
  grit, 
  

  

  1518. 
  

   Lakes 
  of 
  central 
  New 
  York, 
  1616. 
  

  

  Lapworth, 
  , 
  geologic 
  studies, 
  1465. 
  

  

  Laramie 
  group, 
  174*. 
  

  

  Laurent 
  i 
  an 
  rocks 
  of 
  Canada, 
  138'^. 
  

  

  Lead 
  ore, 
  122^; 
  localities 
  producing, 
  

  

  2326. 
  

   Lenticular 
  iron 
  ores, 
  2198. 
  

   Lewis 
  county, 
  Potsdam 
  sandstone 
  

   exposures, 
  1451 
  ; 
  Hudson 
  river 
  group, 
  

   1496. 
  

   Lignite, 
  localities 
  producing, 
  235*. 
  

   Lime 
  and 
  cement, 
  2225. 
  

   Limestone, 
  125^, 
  1275, 
  1969-2033; 
  con- 
  

   stituents, 
  1219, 
  1949-955; 
  of 
  Acadian 
  

   group, 
  1443; 
  of 
  Adirondacks, 
  1428; 
  

   of 
  Dutchess 
  county, 
  1432; 
  of 
  lower 
  

   Silurian 
  system, 
  1468-493; 
  Trenton 
  

   group, 
  1475; 
  of 
  upper 
  Helderberg 
  

   group, 
  1589-601; 
  of 
  upper 
  Silurian 
  

   system, 
  1531-581; 
  of 
  Washington 
  

   county, 
  143'^. 
  See 
  also 
  Crystalline 
  

   -limestone; 
  Magnesian 
  limestone; 
  

   Tully 
  limestone 
  ; 
  Upper 
  Helderberg 
  

   limestone. 
  

   Limonites, 
  220^-218. 
  

   Lincklaen, 
  Ledyard, 
  Guide 
  to 
  geology 
  

   of 
  New 
  York 
  and 
  to 
  the 
  state 
  geological 
  

   cabinet, 
  1096-103. 
  

   Lithology, 
  manual 
  of, 
  120*. 
  

   Littlefalls, 
  Archaean 
  rocks, 
  1389-391; 
  

   pre-Cambrian 
  rocks, 
  1413; 
  calciferous 
  

   sandrock, 
  1471. 
  

   Long 
  Island, 
  terminal 
  moraine, 
  176^, 
  

  

  2036. 
  

   Long 
  Island 
  clays, 
  212*. 
  

   Longmeadow 
  sandstone, 
  1956. 
  

   Lower 
  Helderberg 
  group, 
  157*-58i. 
  

   Lower 
  Helderberg 
  limestones, 
  2015. 
  

   Lower 
  Pentamerus 
  limestone, 
  157"^. 
  

   Lower 
  Silurian 
  system, 
  1383, 
  146*-507 
  ; 
  

  

  life 
  of, 
  1505. 
  

   Ludlow 
  ville 
  shale, 
  163*. 
  

  

  