﻿CONTENTS 
  

  

  PAGE 
  

  

  Introduction 
  489 
  

  

  History 
  of 
  the 
  Hudson 
  river 
  beds 
  490 
  

  

  Result 
  of 
  former 
  investigations 
  512 
  

  

  Discovery 
  of 
  outcrops 
  (stations) 
  with 
  fossils 
  513 
  

  

  Description 
  of 
  stations 
  513 
  

  

  A 
  Lorraine 
  beds 
  513 
  

  

  B 
  Utica 
  beds 
  519 
  

  

  C 
  Middle 
  Trenton 
  beds 
  533 
  

  

  D 
  Normans 
  kill 
  beds 
  (lower 
  Dicellograptus 
  zone) 
  538 
  

  

  Conglomerate 
  bed 
  of 
  lower 
  Trenton 
  aspect 
  in 
  shale 
  544 
  

  

  Conglomerate 
  bed 
  on 
  Rysedorph 
  hill 
  546 
  

  

  Extension 
  of 
  zone 
  of 
  Normans 
  kill 
  beds. 
  (Lower 
  Dicellograptus 
  beds) 
  550 
  

  

  Taxonomic 
  position 
  of 
  the 
  Normans 
  kill 
  graptolite 
  beds 
  550 
  

  

  Explanation 
  of 
  the 
  overturn 
  of 
  the 
  strata 
  k 
  . 
  . 
  . 
  . 
  552 
  

  

  Clastic 
  development 
  of 
  Trenton 
  in 
  Hudson 
  river 
  valley 
  558 
  

  

  Discontinuity 
  of 
  faunistic 
  succession 
  in 
  Trenton 
  and 
  Utica 
  beds 
  561 
  

  

  Discussion 
  of 
  the 
  validity 
  of 
  the 
  term, 
  " 
  Hudson 
  river 
  group 
  " 
  564 
  

  

  Summary 
  567 
  

  

  Descriptions 
  of 
  new 
  fossils 
  found 
  in 
  the 
  described 
  shales 
  569 
  

  

  Description 
  of 
  map 
  581 
  

  

  References 
  581 
  

  

  Explanation 
  of 
  plates 
  586 
  

  

  Index 
  5S9 
  

  

  