﻿CLAYS 
  OF 
  NEW 
  YOKE 
  599 
  

  

  The 
  Melosira 
  and 
  Stephanodiscus 
  are 
  present 
  in 
  

   countless 
  numbers. 
  Only 
  two 
  specimens 
  were 
  found 
  of 
  the 
  

   Triceratium, 
  and 
  Dr 
  D. 
  P. 
  Ward, 
  of 
  Poughkeepsie, 
  who 
  

   has 
  also 
  given 
  me 
  much 
  aid 
  in 
  the 
  identification 
  of 
  my 
  material, 
  

   informs 
  me 
  that 
  this 
  species 
  is 
  very 
  common 
  in 
  the 
  diatomaceous 
  

   earth 
  from 
  Wellington, 
  'New 
  Zealand, 
  but 
  he 
  has 
  never 
  heard 
  of 
  

   its 
  occurrence 
  before 
  in 
  America. 
  Sponge 
  spicules 
  are 
  not 
  un- 
  

   common 
  in 
  Lloyd's 
  neck 
  diatomaceous 
  earth, 
  and 
  several 
  forms 
  

   are 
  figured. 
  Samples 
  of 
  the 
  red 
  and 
  brown 
  clay 
  from 
  the 
  sec- 
  

   tion 
  given 
  above 
  were 
  examined, 
  but 
  no 
  organic 
  remains 
  were 
  

   found 
  in 
  them. 
  

  

  