﻿CLAYS 
  OF 
  IS^EW 
  YORK 
  601 
  

  

  (Magnified 
  500 
  diameters) 
  

  

  Pig. 
  1, 
  2 
  Jointed 
  liair. 
  Wyandance, 
  L. 
  I. 
  

  

  Fig. 
  3 
  Ridged 
  tube 
  from 
  stoneware 
  clay. 
  Glencove, 
  L. 
  I. 
  

  

  Fig. 
  4, 
  5 
  Spicules 
  from 
  cretaceous 
  clay 
  at 
  Grlencove, 
  L. 
  I. 
  

  

  Fig. 
  6-8 
  Spicules 
  from 
  Lloyd's 
  neck, 
  L. 
  I. 
  

  

  Fig. 
  9 
  Spicule 
  fragment? 
  Farmingdale, 
  L. 
  I. 
  

  

  Fig. 
  10 
  Diatoma 
  hyemale. 
  Glencove, 
  L. 
  I. 
  

  

  Fig. 
  11 
  Navicula 
  viridis 
  Kutz. 
  Lloyd's 
  neck, 
  L. 
  I. 
  

  

  Fig. 
  12 
  Cymhella 
  cuspidata 
  Kutz. 
  Lloyd's 
  neck, 
  L. 
  L 
  

  

  Fig. 
  . 
  13 
  Campyloneis 
  Grevillei 
  var. 
  regal 
  is. 
  Lloyd's 
  neck, 
  

  

  L. 
  I. 
  

   Fig. 
  14 
  C 
  o\cconema 
  parvum 
  TT. 
  Smith. 
  Xorthport, 
  L. 
  L 
  

   Fig. 
  15 
  Triceratium 
  trifoliatum. 
  Lloyd's 
  neck, 
  L. 
  L 
  

   Fig. 
  16 
  Eunotia 
  monodon 
  E'hr. 
  Lloyd's 
  neck, 
  L. 
  L 
  

   Fig. 
  17 
  Navicula 
  lata 
  Breb. 
  Lloyd's 
  neck, 
  L. 
  I. 
  

   Fig. 
  18 
  Encyonema 
  ventricosum 
  Kutz. 
  Lloyd's 
  neck, 
  L. 
  I. 
  

   Fig. 
  19 
  Synedra 
  affinis 
  K. 
  B. 
  Lloyd's 
  neck, 
  L. 
  I. 
  

   Fig. 
  20 
  Fragilaria 
  construans 
  Grun. 
  Lloyd's 
  neck, 
  L. 
  I. 
  

   Fig. 
  21 
  Gomphonema 
  capitatum 
  Ebr. 
  Lloyd's 
  neck, 
  L. 
  L 
  

   Fig. 
  22 
  Epithema 
  turgida 
  (Ehr.) 
  Kutz. 
  Lloyd's 
  neck, 
  

  

  L. 
  I. 
  

   Fig. 
  23 
  Navicula 
  cocconeiformis 
  Greg. 
  Lloyd's 
  neck 
  L. 
  I. 
  

   Fig. 
  24 
  Stauroneis 
  plioenecenteron 
  Ebr. 
  Lloyd's 
  neck, 
  

  

  L. 
  I. 
  

   Fig. 
  25 
  From 
  clay 
  at 
  Is'orthport, 
  L. 
  I. 
  

   Fig. 
  26, 
  27 
  Melosira 
  granulata 
  (Ehr.) 
  Ralfs. 
  Lloyd's 
  neck 
  

  

  and 
  Glencove, 
  L. 
  I. 
  

   Fig. 
  28 
  Stephanodiscus 
  Niagarae 
  Ehr. 
  Lloyd's 
  neck 
  and 
  

  

  Glencove, 
  L. 
  I. 
  

   Fig. 
  29 
  From 
  clay 
  at 
  Oyst-er 
  bay. 
  

  

  