﻿STEATA 
  OP 
  THE 
  HAMPSHIEE 
  BASIN". 
  487 
  

  

  DlSCUSSIOX. 
  

  

  Prof. 
  Peestwich 
  said 
  he 
  had 
  listened 
  with 
  great 
  interest 
  to 
  the 
  

   paper 
  concerning 
  this 
  most 
  difficult 
  subject. 
  Over 
  the 
  whole 
  area 
  

   only 
  two 
  zones 
  were 
  well 
  marked, 
  that 
  of 
  the 
  London 
  and 
  that 
  of 
  

   the 
  Barton 
  Clay. 
  The 
  Brackiesham 
  beds, 
  on 
  the 
  other 
  hand, 
  were 
  

   clear 
  in 
  the 
  Whitecliff 
  section, 
  but 
  were 
  not 
  indicated 
  by 
  fossils 
  in 
  

   the 
  Alum-Bay 
  sections. 
  Further 
  west 
  still, 
  about 
  Poole, 
  Bourne- 
  

   mouth, 
  &c, 
  the 
  beds 
  became 
  still 
  more 
  sandy, 
  and 
  more 
  difficult 
  of 
  

   correlation. 
  So, 
  again, 
  in 
  the 
  London 
  basin, 
  where, 
  perhaps, 
  we 
  

   had 
  nothing 
  above 
  the 
  Brackiesham 
  series. 
  In 
  all 
  the 
  fluvio-rnarine 
  

   series 
  there 
  were 
  great 
  variations. 
  Still 
  he 
  felt 
  some 
  difficulty 
  in 
  

   accepting 
  the 
  explanation 
  offered 
  by 
  Prof. 
  Judd. 
  One 
  thing 
  was 
  that 
  

   the 
  author 
  failed 
  to 
  point 
  out 
  on 
  the 
  same 
  horizon 
  in 
  Headon 
  Hill 
  any 
  

   marine 
  beds 
  corresponding 
  with 
  the 
  Colwell-Bay 
  beds. 
  At 
  the 
  same 
  

   time 
  he 
  admitted 
  that 
  the 
  variation 
  of 
  the 
  beds 
  rendered 
  identifi- 
  

   cation 
  very 
  difficult. 
  

  

  Mr. 
  J. 
  Staekie 
  Gaedxee 
  said 
  that 
  Mr. 
  Monckton, 
  in 
  the 
  neigh- 
  

   bourhood 
  of 
  Wellington 
  College, 
  had 
  got 
  good 
  Brackiesham 
  forms 
  in 
  

   the 
  green 
  beds, 
  and 
  in 
  the 
  white 
  sands 
  above 
  had 
  found 
  true 
  

   Barton 
  forms. 
  He 
  asked 
  why 
  the 
  beds 
  marked 
  20 
  in 
  the 
  section 
  

   were 
  classified 
  with 
  the 
  Headon. 
  He 
  had 
  recently 
  trenched 
  on 
  

   Headon 
  Hill 
  from 
  the 
  Bembridge 
  Limestone 
  to 
  the 
  Upper 
  Headon 
  

   limestone, 
  but 
  had 
  found 
  no 
  fluviomarine 
  deposits. 
  

  

  Mr. 
  Tawxey 
  said 
  that 
  he 
  would 
  not 
  delay 
  over 
  matters 
  of 
  classi- 
  

   fication 
  ; 
  for 
  the 
  question 
  of 
  the 
  adoption 
  or 
  not 
  of 
  the 
  term 
  Oligocene 
  

   was 
  one 
  that 
  it 
  might 
  be 
  hoped 
  would 
  be 
  settled 
  by 
  the 
  Interna- 
  

   tional 
  Congress 
  of 
  Geology. 
  Among 
  all 
  the 
  beds 
  exposed 
  in 
  the 
  

   section 
  exhibited 
  at 
  Whitecliff 
  Bay 
  he 
  would 
  only 
  refer 
  to 
  those 
  

   between 
  the 
  Upper 
  Bagshot 
  Sands 
  and 
  the 
  Osborne 
  series. 
  With 
  

   regard 
  to 
  his 
  late 
  paper 
  in 
  the 
  Proceedings 
  of 
  the 
  Cambridge 
  Philo- 
  

   sophical 
  Society, 
  the 
  point 
  raised 
  was 
  that 
  the 
  fossils 
  of 
  the 
  said 
  

   sands 
  at 
  Hordwell 
  allied 
  them 
  to 
  the 
  Barton 
  beds 
  more 
  nearly 
  than 
  

   to 
  the 
  Headon. 
  So 
  far 
  as 
  he 
  understood 
  Prof. 
  Judd's 
  communica- 
  

   tion, 
  it 
  was 
  a 
  reiteration 
  of 
  his 
  former 
  paper 
  ; 
  and 
  as 
  no 
  new 
  facts 
  

   were 
  adduced, 
  he 
  would 
  answer 
  with 
  no 
  new 
  arguments, 
  and 
  must 
  

   apologize 
  for 
  repeating 
  what 
  has 
  already 
  appeared 
  in 
  the 
  'Journal' 
  of 
  

   the 
  Society. 
  He 
  had 
  shown, 
  like 
  previous 
  observers, 
  that 
  the 
  

   Brockenhurst 
  fossils 
  only 
  occurred 
  at 
  the 
  base 
  of 
  the 
  Middle 
  Headon 
  ; 
  

   both 
  at 
  Whitecliff 
  Bay 
  and 
  in 
  the 
  New 
  Forest 
  they 
  lie 
  immediately 
  

   on 
  the 
  freshwater 
  Lower 
  Headon. 
  He 
  had 
  not 
  made 
  four 
  new 
  series, 
  

   but 
  three 
  zones 
  were 
  discriminated 
  as 
  subdivisions 
  of 
  the 
  Middle 
  

   Headon 
  at 
  Whitecliff. 
  The 
  characteristic 
  Brockenhurst 
  fossils 
  did 
  

   not 
  pass 
  up 
  into 
  the 
  upper 
  zone 
  at 
  Whitecliff; 
  nor 
  did 
  they 
  occur 
  at 
  

   all 
  at 
  Colwell 
  Bay, 
  the 
  Brockenhurst 
  zoue 
  being 
  entirely 
  absent 
  

   there. 
  Above 
  the 
  Middle 
  Headon 
  at 
  Whitecliff 
  came 
  the 
  freshwater 
  

   Upper 
  Headon, 
  precisely 
  as 
  in 
  the 
  Xew 
  Forest, 
  Colwell 
  Bay, 
  and 
  

   Headon 
  Hill, 
  and 
  then 
  the 
  Osborne 
  beds. 
  These 
  series 
  were 
  easily 
  

   identifiable 
  by 
  their 
  fossils. 
  

  

  Passing 
  to 
  the 
  wset 
  end 
  of 
  the 
  Isle 
  of 
  Wight, 
  he 
  must 
  repeat 
  that 
  

  

  