﻿HUDSON 
  RIVER 
  BEDS 
  NEAR 
  ALBANY 
  509 
  

  

  by 
  Emmons, 
  could 
  be 
  correlated 
  and 
  referred 
  to 
  the 
  same 
  or 
  an 
  

   immediately 
  following 
  geologic 
  terrane. 
  

  

  The 
  fossils 
  collected 
  at 
  Cote 
  d' 
  Abraham 
  have 
  a 
  decided 
  lower 
  

   Trenton 
  facies, 
  as 
  the 
  presence 
  ofSolen.opora 
  compact 
  a, 
  

   or 
  a 
  variety 
  of 
  this 
  species, 
  seems 
  clearly 
  to 
  indicate. 
  From 
  the 
  

   long 
  list 
  of 
  species 
  obtained 
  in 
  the 
  Montcalm 
  market 
  rocks 
  

   [Normans 
  kill 
  fauna] 
  it 
  can 
  readily 
  be 
  seen 
  that 
  we 
  have 
  there 
  

   represented 
  a 
  fauna 
  which 
  has 
  never 
  yet 
  been 
  found 
  either 
  in 
  

   the 
  Lorraine, 
  Utica 
  or 
  Trenton 
  terranes 
  — 
  a 
  fauna 
  distinct 
  from 
  

   the 
  faunas 
  included 
  in 
  these 
  three 
  terranes 
  whose 
  characters 
  are 
  

   so 
  well 
  known 
  throughout 
  the 
  continent 
  in 
  their 
  undisturbed 
  and 
  

   complete 
  development. 
  It 
  is 
  the 
  same 
  fauna 
  which 
  has 
  received 
  

   in 
  numerous 
  places 
  the 
  name 
  " 
  Hudson 
  river 
  " 
  e.g. 
  at 
  Normans 
  

   kill 
  and 
  many 
  other 
  localities 
  in 
  New 
  York 
  and 
  Vermont, 
  and 
  in 
  

   Canada. 
  Similar 
  strata 
  have 
  also 
  been 
  observed 
  in 
  northern 
  

   Maine, 
  in 
  Newfoundland 
  and 
  New 
  Brunswick. 
  

  

  The 
  apparently 
  lower 
  Trenton 
  aspect 
  of 
  a 
  portion 
  of 
  the 
  Que- 
  

   bec 
  massif 
  as 
  seen 
  at 
  Cote 
  d' 
  Abraham 
  and 
  Cote 
  de 
  la 
  Negresse 
  

   gives 
  us 
  an 
  indication 
  of 
  the 
  age 
  of 
  the 
  strata 
  at 
  these 
  points. 
  

   Cut 
  off 
  on 
  all 
  sides 
  by 
  faults 
  and 
  separated 
  from 
  the 
  Levis 
  rocks 
  

   by 
  the 
  St 
  Lawrence 
  river, 
  the 
  Quebec 
  terrane 
  (which 
  name 
  I 
  beg 
  

   to 
  propose 
  for 
  this 
  series 
  of 
  strata 
  such 
  as 
  we 
  meet 
  at 
  the 
  Mont- 
  

   calm 
  market. 
  Parliament 
  square, 
  and 
  drill 
  shed 
  exposures) 
  stands 
  

   by 
  itself 
  in 
  an 
  anomalous 
  position 
  very 
  similar 
  to 
  rocks 
  of 
  similar 
  

   age 
  which 
  Prof. 
  Lapworth 
  designated 
  as 
  "unplaced 
  in 
  the 
  series". 
  

  

  The 
  presence 
  of 
  such 
  forms 
  as 
  Agnostus, 
  Aeglina, 
  

   Ampyx,Dionide, 
  Bathyurus, 
  etc., 
  points 
  to 
  a 
  rather 
  

   low[er] 
  horizon 
  than 
  the 
  Trenton, 
  while 
  I 
  believe 
  that 
  it 
  is 
  per- 
  

   haps 
  premature 
  to 
  give 
  the 
  precise 
  geologic 
  position 
  of 
  the 
  strata 
  

   at 
  Quebec, 
  in 
  the 
  present 
  light 
  of 
  our 
  knowledge. 
  

  

  In 
  the 
  discussion 
  which 
  followed 
  the 
  reading 
  of 
  this 
  important 
  

   contribution 
  to 
  our 
  knowledge 
  of 
  the 
  Champlainic 
  [Lower 
  Sil- 
  

   uric] 
  terranes, 
  Mr 
  Waloott 
  expressed 
  the 
  opinion, 
  that, 
  " 
  if 
  Mi- 
  

   Ami's 
  determination 
  of 
  the 
  fauna 
  is 
  correct, 
  the 
  horizon 
  of 
  the 
  

   Quebec 
  city 
  rocks 
  is 
  that 
  of 
  the 
  Trenton, 
  probably 
  the 
  lower 
  

   Trenton, 
  and 
  perhaps 
  the 
  upper 
  portion 
  of 
  the 
  Chazy 
  of 
  the 
  New 
  

   York 
  section 
  ". 
  

  

  The 
  writer 
  concurs 
  with 
  Lapworth 
  and 
  Ami 
  in 
  considering 
  the 
  

   Normans 
  kill 
  or 
  Marsouin 
  zone 
  as 
  " 
  a 
  distinct 
  development 
  of 
  i 
  lie 
  

   Ordovician 
  ", 
  which 
  view 
  is 
  supported 
  by 
  evidence 
  obtained 
  

   around 
  Albany, 
  and 
  also 
  with 
  Walcott 
  in 
  so 
  far 
  as 
  be 
  considers 
  

   the 
  horizon 
  of 
  the 
  Quebec 
  city 
  rocks 
  as 
  that 
  of 
  the 
  lower 
  Trenton. 
  

  

  