﻿472 
  aer. 
  s. 
  s. 
  BroniAS" 
  ox 
  ihe 
  

  

  to 
  the 
  top 
  of 
  the 
  ;; 
  Middle 
  Shale 
  and 
  Sandstone 
  " 
  ( 
  Hudleston, 
  op. 
  eit. 
  

   p. 
  75 
  1 
  would 
  be 
  in 
  the 
  Toareian 
  — 
  the 
  Lower 
  Toareian 
  would 
  

   end 
  with 
  the 
  Dogger 
  Sands, 
  and 
  thence 
  would 
  be 
  Upper 
  Toareian. 
  

  

  In 
  the 
  Midland 
  Counties 
  the 
  Toareian 
  would 
  include 
  the 
  Lin- 
  

   colnshire 
  Limestone 
  : 
  above 
  that 
  would 
  come 
  the 
  Bathonian, 
  the 
  

   Bajocian 
  being 
  entirely 
  absent. 
  

  

  Cohcluheohs. 
  

  

  We 
  arrive 
  at 
  the 
  following 
  conclusions 
  in 
  this 
  paper 
  : 
  — 
  

  

  1. 
  That 
  the 
  yellow-sand 
  deposits 
  of 
  the 
  counties 
  of 
  Gloucester, 
  

   Somerset, 
  and 
  Dorset 
  are 
  on 
  different 
  horizons, 
  earlier 
  in 
  the 
  North, 
  

   and 
  later 
  in 
  the 
  South. 
  

  

  2. 
  That 
  it 
  is 
  best 
  to 
  retain 
  the 
  names 
  Cotteswold, 
  Midford. 
  and 
  

   Yeovil 
  Sands 
  as 
  local 
  names 
  merely, 
  and 
  not 
  to 
  extend 
  these 
  divisions 
  

   beyond 
  the 
  yellow 
  micaceous 
  sands. 
  

  

  3. 
  That 
  the 
  term 
  ,: 
  Midford 
  .'Sands 
  " 
  for 
  the 
  whole 
  series 
  ie 
  

   inapplicable, 
  since 
  it 
  gives 
  an 
  idea 
  of 
  contemporaneity, 
  which 
  does 
  

   not 
  east. 
  

  

  4. 
  That 
  on 
  account 
  of 
  the 
  different 
  horizons 
  at 
  which 
  the 
  

  

  are 
  developed, 
  and 
  on 
  account 
  of 
  the 
  fact 
  that 
  they 
  occupy 
  only 
  a 
  

   small 
  part 
  of 
  the 
  duration 
  of 
  sandy 
  deposits 
  in 
  various 
  places, 
  the 
  

   idea 
  of 
  considering 
  them 
  as 
  passage-beds 
  between 
  the 
  Lias 
  and 
  the 
  

   Oolite 
  cannot 
  be 
  entertained. 
  

  

  5. 
  That 
  it 
  is 
  incorrect 
  to 
  assign 
  all 
  these 
  sands 
  either 
  to 
  the 
  Lias 
  

   or 
  to 
  the 
  Inferior-Oolite 
  series. 
  

  

  6. 
  That 
  there 
  is 
  no 
  continuous 
  and 
  marked 
  geological 
  or 
  paLeonto- 
  

   logical 
  break 
  either 
  at 
  the 
  beginning 
  or 
  end 
  of 
  these 
  sand-de] 
  rats, 
  

   or 
  even 
  at 
  the 
  end 
  of 
  either 
  the 
  Commune-. 
  J 
  se-, 
  or 
  Opalinum- 
  

   zones. 
  

  

  7. 
  That 
  the 
  strata 
  from 
  the 
  Faleiferu 
  -zone 
  to 
  the 
  C 
  

  

  zone 
  inclusive 
  form 
  a 
  very 
  continuous 
  series 
  dominated 
  throughout 
  

   b\ 
  the 
  Hildoeeratidae. 
  and 
  marked 
  off 
  paheontologieally 
  from 
  its 
  

   predecessors 
  or 
  successors 
  : 
  and 
  that 
  at 
  the 
  end 
  of 
  this 
  period 
  there 
  

   is 
  a 
  ready-made 
  break, 
  often 
  marked 
  lithologically, 
  due 
  to 
  the 
  

   absence 
  of 
  one 
  or 
  other 
  life-zone. 
  

  

  8. 
  That 
  the 
  term 
  1: 
  : 
  • 
  is 
  applicable 
  to 
  this 
  series: 
  and 
  it 
  

   should 
  be 
  erected 
  into 
  a 
  distinct 
  lormation. 
  

  

  9. 
  That 
  the 
  term 
  Toareian 
  is 
  commendable 
  because 
  it 
  does 
  not 
  

   commit 
  us 
  to 
  any 
  definite 
  opinion 
  concerning 
  the 
  constituents 
  of 
  the 
  

   strata, 
  whether 
  Clay, 
  Sand, 
  Limestone, 
  oolitic, 
  or 
  otherwise. 
  

  

  10. 
  That 
  the 
  term 
  is 
  preferable 
  to 
  "Infra-Oolitic 
  Mark;* 
  

   because 
  the 
  term 
  " 
  ^Larls 
  "* 
  is 
  anomalous 
  when 
  applied 
  to 
  the 
  

   majority 
  of 
  English 
  local:::;--. 
  

  

  11. 
  That 
  to 
  call 
  the 
  whole 
  series 
  " 
  Toareian 
  " 
  is 
  preferable 
  to 
  

   placing 
  the 
  FaJeiferum-- 
  Commune-, 
  and 
  J">//Y/<^-zones 
  in 
  the 
  

   Inferior-Oolite 
  Series, 
  :r 
  to 
  uniting 
  the 
  Ojoa 
  7 
  in\>m-, 
  Mureh 
  it 
  

  

  and 
  the 
  Coneavum-zoTies 
  with 
  the 
  Lias 
  : 
  because 
  both 
  of 
  these 
  plans 
  

   suggest 
  an 
  anomaly. 
  

  

  12. 
  That 
  the 
  term 
  " 
  Toareian,'' 
  as 
  thus 
  defined, 
  should 
  be 
  regarded 
  

  

  