﻿172 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Corinth, 
  12, 
  34, 
  59 
  

  

  Corynoides 
  sp., 
  g6 
  

   calicularis, 
  50, 
  51, 
  98 
  

   gracilis, 
  91, 
  92, 
  98, 
  99 
  

  

  Cremacrinus 
  sp., 
  96 
  

  

  Cryptograptus 
  tricornis, 
  92 
  

  

  Cryptozoon, 
  39, 
  44 
  

   sp., 
  77 
  

   proliferum, 
  42, 
  45 
  

  

  Crystalline 
  rocks, 
  7, 
  8 
  

  

  Ctenobolbina 
  subrotunda, 
  97 
  

  

  Ctenodonta, 
  99 
  

   declivis, 
  96 
  

   levata, 
  96 
  

   prosseri, 
  96 
  

   radiata, 
  96 
  

   recta, 
  96 
  

   subcuneata, 
  96 
  

  

  Cumings, 
  E. 
  R., 
  cited, 
  54, 
  56 
  

  

  Cuneamya 
  acuitrons, 
  97 
  

  

  Cushing, 
  H. 
  P., 
  Location 
  and 
  char- 
  

   acter, 
  6-7; 
  General 
  topography, 
  

   8-15; 
  General 
  geology, 
  15-16; 
  Pal- 
  

   eozoic 
  rocks 
  of 
  the 
  western 
  

   trough, 
  30-32; 
  Structural 
  geology 
  

   of 
  the 
  western 
  basin, 
  53-65; 
  The 
  

   Northumberland 
  volcanic 
  plug, 
  

   115-35; 
  Economic 
  geology, 
  148-52; 
  

   cited, 
  21, 
  31, 
  38, 
  42, 
  107, 
  134; 
  

   mentioned, 
  73 
  

  

  Ruedemann, 
  Rudolf, 
  Histori- 
  

   cal 
  geology, 
  135-48 
  

  

  Cyclonema 
  cushingi, 
  97 
  

   montrealense, 
  97 
  

  

  Cyclora 
  cf. 
  minuta, 
  97 
  

  

  Cyrtoceras 
  confertissimum, 
  77 
  

  

  Dale, 
  T. 
  Nelson, 
  cited, 
  11, 
  66, 
  67, 
  

   70-71, 
  76, 
  79, 
  85, 
  86, 
  87, 
  89, 
  90, 
  103, 
  

   109, 
  no, 
  112, 
  113 
  

  

  Dalmanella 
  rogata, 
  47 
  

   testudinaria, 
  76, 
  96, 
  98$ 
  99 
  

  

  Darton, 
  N. 
  H., 
  cited, 
  53, 
  59, 
  60 
  

  

  Davis, 
  W. 
  M., 
  cited, 
  118 
  

  

  Deep 
  kill, 
  in 
  

  

  Deep 
  Kill 
  graptolite 
  fauna, 
  112 
  

  

  Deep 
  Kill 
  shale, 
  66, 
  75, 
  141, 
  142, 
  165 
  

  

  Descriptive 
  geology, 
  by 
  H. 
  P. 
  Cush- 
  

   ing, 
  16-30 
  

  

  Diabase, 
  17, 
  21, 
  28-30; 
  analyses, 
  30 
  

  

  Diamond 
  Rock 
  quartzite, 
  70 
  

  

  Dicellocephalus 
  hartti, 
  42 
  

   tribulis, 
  42 
  

  

  Dicellograptus 
  sextans, 
  92 
  

  

  Dicranograptus 
  contortus, 
  93 
  

   nicholsoni, 
  50, 
  96, 
  97, 
  99 
  

   ramosus, 
  91, 
  92 
  

  

  Dictyonema 
  flabelliforme, 
  73, 
  74 
  

  

  Didymograptus 
  Sagittarius, 
  92 
  

   sagitticaulis, 
  92 
  

   subtenuis, 
  91, 
  92 
  

  

  Dikes, 
  21, 
  23, 
  27, 
  28-30 
  

  

  Dinorthis 
  pectinella, 
  47 
  

  

  Diorite, 
  28 
  

  

  Diplograptus 
  cf. 
  acutus, 
  91 
  

   amplexicaulis, 
  50, 
  88, 
  93, 
  97, 
  98, 
  99 
  

  

  var. 
  per 
  tenuis, 
  97, 
  98, 
  99 
  

   (Mesograptus) 
  mohawkensis, 
  50 
  

   (Mesograptus) 
  putillus, 
  50, 
  96, 
  

   97, 
  98 
  

  

  Dolomite, 
  150-51 
  

  

  Drainage, 
  12-13 
  

  

  Drumlins, 
  14 
  

  

  East 
  Galway, 
  46, 
  56, 
  59 
  

  

  Eastern 
  trough, 
  Paleozoic 
  rocks, 
  66- 
  

  

  99 
  

  

  Eccyliopterus 
  planibasalis, 
  77 
  

   planidorsalis, 
  77 
  

  

  Economic 
  geology, 
  by 
  H. 
  P. 
  Cush- 
  

   ing, 
  148-52 
  

  

  Eddy 
  Hill 
  grit, 
  66, 
  69 
  

  

  Edrioaster 
  saratogensis, 
  96 
  

  

  Elizabethtown 
  quadrangle, 
  28 
  

  

  Elliptocephala 
  asaphoides, 
  66, 
  72, 
  

   108 
  

  

  Emerson, 
  B. 
  K., 
  cited, 
  118 
  

  

  Emmons, 
  Ebenezer, 
  cited, 
  66, 
  76, 
  79, 
  

   108 
  

  

  Empire 
  Graphite 
  Co., 
  148 
  

  

  Eoharpes 
  ottawensis, 
  97 
  

  

  Eopolychaetus 
  albaniensis, 
  50 
  

  

  Eridotrypa 
  minor, 
  47 
  

  

  