﻿348 
  GLACIO-MARINE 
  DRIFT 
  OP 
  THE 
  VALE 
  OF 
  CLWYD. 
  [Aug. 
  1 
  8 
  97, 
  

  

  The 
  shells 
  in 
  the 
  St. 
  Asaph 
  Drift 
  were, 
  with 
  few 
  exceptions, 
  of 
  the 
  

   same 
  species 
  as 
  those 
  which 
  now 
  occur 
  on 
  that 
  coast, 
  and 
  the 
  

   exceptions 
  were 
  Scandinavian, 
  not 
  Arctic. 
  

  

  Mr. 
  P. 
  E. 
  Kendall 
  also 
  spoke. 
  

  

  The 
  Author, 
  in 
  reply 
  to 
  Mr. 
  Strahan, 
  said 
  that 
  Mr. 
  Shone 
  

   obtained 
  his 
  foraminifera 
  from 
  the 
  material 
  in 
  the 
  interior 
  of 
  

   Tarritellce, 
  and 
  not 
  from 
  the 
  clay-matrix 
  in 
  which 
  they 
  were 
  

   embedded. 
  The 
  late 
  Dr. 
  Robertson 
  examined 
  Boulder 
  Clay 
  from 
  

   the 
  Atlantic 
  Docks, 
  Liverpool, 
  for 
  the 
  Author; 
  and 
  the 
  list 
  of 
  

   foraminifera 
  is 
  given 
  in 
  his 
  paper 
  on 
  the 
  ' 
  Drift 
  Beds 
  of 
  the 
  

   North- 
  West 
  of 
  England,' 
  published 
  in 
  the 
  Society's 
  Journal. 
  It 
  

   was 
  not, 
  however, 
  until 
  the 
  Boulder 
  Clays 
  in 
  the 
  Wirral 
  Railway- 
  

   cutting, 
  Cheshire, 
  were 
  examined 
  by 
  Mr. 
  Wright 
  and 
  found 
  to 
  be 
  

   rich 
  in 
  foraminifera, 
  that 
  the 
  Author 
  realized 
  the 
  importance 
  of 
  the 
  

   subject. 
  Since 
  then 
  many 
  samples 
  of 
  clays 
  from 
  Great 
  Crosby, 
  

   Lancashire, 
  Blackpool, 
  the 
  Yale 
  of 
  Clwyd, 
  and 
  Ayrshire 
  have 
  been 
  

   examined 
  by 
  Mr. 
  Wright 
  with 
  the 
  same 
  result. 
  The 
  organisms 
  

   occur 
  most 
  plentifully 
  in 
  the 
  finer 
  clays 
  and 
  are 
  well 
  preserved, 
  the 
  

   facies 
  being 
  very 
  similar 
  from 
  all 
  the 
  localities 
  in 
  England, 
  Wales, 
  

   and 
  Scotland 
  — 
  jointly 
  pointing 
  to 
  the 
  conclusion 
  that 
  they 
  are 
  not 
  

   derived 
  fossils, 
  but 
  have 
  lived 
  and 
  died 
  where 
  they 
  are 
  found. 
  The 
  

   Boulder 
  Clay 
  of 
  the 
  Vale 
  of 
  Clwyd 
  here 
  described 
  is 
  identical 
  with 
  

   the 
  Low-level 
  Marine 
  Boulder 
  Clay 
  of 
  Lancashire 
  and 
  Cheshire. 
  

  

  