﻿SEARLES 
  Y. 
  WOOD 
  ON 
  THE 
  NEWER 
  

  

  the 
  valleys 
  of 
  the 
  Swillbrook 
  and 
  Somersetshire 
  Avon 
  in 
  Sheet 
  34, 
  

   as 
  shown 
  in 
  Map 
  6. 
  

  

  With 
  the 
  flint 
  debris 
  of 
  which 
  the 
  South-Hants 
  gravel 
  is 
  chiefly 
  

   composed 
  is 
  a 
  large 
  admixture 
  of 
  quartz 
  and 
  quartzite 
  pebbles 
  ; 
  and 
  

   as 
  these 
  abound 
  in 
  the 
  gravel 
  of 
  the 
  plateau 
  around 
  Bournemouth, 
  

   which 
  was 
  formed 
  in 
  the 
  Hampshire 
  inlet 
  when 
  this 
  had 
  shrunk 
  to 
  

   small 
  dimensions, 
  and 
  did 
  not 
  emerge 
  until 
  the 
  sea 
  was 
  about 
  100 
  feet 
  

   only 
  above 
  its 
  present 
  level, 
  and 
  all 
  the 
  water-partings 
  between 
  this 
  

   inlet 
  and 
  the 
  systems 
  of 
  the 
  Thames 
  and 
  Somersetshire 
  Avon 
  had 
  risen 
  

   far 
  above 
  the 
  sea-level 
  at 
  that 
  time, 
  they 
  could 
  only 
  have 
  been 
  brought 
  

   into 
  it 
  by 
  some 
  one 
  or 
  other 
  of 
  the 
  group 
  of 
  rivers 
  in 
  Hants 
  and 
  Dorset 
  

   which 
  emptied 
  themselves 
  into 
  this 
  inlet 
  (and 
  of 
  which 
  the 
  Avon 
  of 
  

   Wilts 
  and 
  Hants 
  is 
  the 
  principal) 
  from 
  beds 
  of 
  gravel 
  5', 
  of 
  which 
  

   there 
  are 
  some 
  remnants, 
  mainly 
  composed 
  of 
  these 
  quartz 
  and 
  quartzite 
  

   pebbles, 
  on 
  the 
  chalk 
  hills 
  of 
  Dorset 
  near 
  the 
  sources 
  of 
  these 
  rivers. 
  

   Biver-ice 
  was 
  probably 
  the 
  vehicle 
  of 
  their 
  transport 
  then, 
  as 
  floe-ice 
  

   was 
  that 
  of 
  their 
  trans 
  port 
  into 
  the 
  gravel 
  V 
  ; 
  and 
  this 
  same 
  river-ice 
  

   drifting 
  out 
  into 
  the 
  inlet 
  carried 
  into 
  the 
  gravel 
  of 
  the 
  Bournemouth 
  

   plateau 
  the 
  palasolithic 
  implements 
  of 
  the 
  pointed 
  type 
  found 
  in 
  that*, 
  

   and 
  resembling 
  those 
  from 
  the 
  fluviatile 
  gravel 
  of 
  Milford 
  Hill 
  near 
  

   Salisbury. 
  This 
  Bournemouth 
  gravel, 
  as 
  Mr. 
  Codrington 
  observes, 
  

   corresponds, 
  when 
  allowance 
  is 
  made 
  for 
  the 
  one 
  being 
  that 
  of 
  the 
  

   inlet, 
  and 
  the 
  other 
  that 
  of 
  the 
  rivers 
  Avon 
  (of 
  Wilts) 
  and 
  Bourne, 
  

   with 
  the 
  gravel 
  of 
  Milford 
  Hill 
  ; 
  the 
  bed 
  at 
  Pisherton 
  near 
  Salis- 
  

   bury, 
  on 
  another 
  tributary 
  of 
  this 
  Avon, 
  corresponding, 
  as 
  he 
  also 
  

   observes, 
  with 
  the 
  marine 
  gravel 
  G 
  shown 
  in 
  fig. 
  XLII., 
  a 
  formation 
  

   of 
  the 
  Minor 
  Glaciation, 
  or 
  Keindeer 
  period, 
  described 
  in 
  Stage 
  VII., 
  

   and 
  with 
  which 
  the 
  mention 
  of 
  Reindeer 
  remains 
  from 
  Fisherton 
  by 
  

   Prof. 
  Dawkins 
  (Q. 
  J. 
  G. 
  S. 
  vol. 
  xxv. 
  p. 
  196) 
  coincides. 
  

  

  As 
  the 
  gravel 
  at 
  Bramshaw 
  telegraph 
  (in 
  figs.V. 
  and 
  XLII.), 
  of 
  which 
  

   the 
  elevation 
  is 
  419 
  feet, 
  could 
  not 
  have 
  emerged 
  until 
  near 
  the 
  time 
  

   when 
  the 
  ice 
  of 
  the 
  Chalky 
  Clay 
  began 
  to 
  retreat 
  from 
  the 
  Norfolk 
  

   plateaux, 
  its 
  conversion 
  into 
  land 
  must 
  have 
  but 
  little 
  preceded 
  the 
  

   formation 
  of 
  the 
  Hoxne 
  bed 
  ; 
  so 
  that 
  if 
  the 
  implement 
  found 
  by 
  Mr. 
  

   Prestwich 
  on 
  a 
  talus 
  of 
  the 
  gravel 
  at 
  about 
  350 
  feet 
  near 
  Downton, 
  

   on 
  the 
  slope 
  of 
  the 
  Avon 
  valley 
  within 
  four 
  miles 
  Of 
  Bramshaw, 
  had 
  

   been 
  in 
  situ, 
  it 
  would 
  have 
  been 
  that 
  nearest 
  in 
  synchronism 
  to 
  the 
  

   Hoxne 
  implements 
  which 
  the 
  south 
  of 
  England 
  has 
  yet 
  furnished. 
  

  

  The 
  chalk 
  on 
  which 
  rests 
  the 
  gravel 
  V 
  at 
  more 
  than 
  650 
  feet 
  at 
  

   Meadsted 
  (shown 
  by 
  the 
  letters 
  AP 
  on 
  the 
  continuation 
  of 
  Map 
  2, 
  

   and 
  as 
  then 
  emerged) 
  forms 
  the 
  environment 
  of 
  the 
  western 
  extremity 
  

   of 
  the 
  Weald 
  ; 
  and 
  a 
  section 
  across 
  that 
  extremity, 
  from 
  the 
  chalk 
  

   environment 
  on 
  the 
  north 
  to 
  that 
  on 
  the 
  south, 
  is 
  given 
  by 
  Sir 
  K. 
  

   Murchison 
  in 
  vol. 
  vii. 
  of 
  the 
  Journal, 
  p. 
  353, 
  wherein 
  he 
  shows 
  the 
  

   extremity 
  of 
  the 
  unshaded 
  space 
  immediately 
  south-east 
  of 
  the 
  letters 
  

  

  * 
  It 
  was 
  in 
  a 
  similar 
  way 
  that 
  the 
  implements 
  found 
  in 
  the 
  gravel 
  / 
  of 
  

   Dartford 
  Heath 
  got 
  into 
  it, 
  which 
  gravel 
  has 
  been 
  on 
  the 
  strength 
  of 
  this 
  

   attributed 
  to 
  the 
  Thames 
  river. 
  The 
  sweeping 
  by 
  climatic 
  agencies 
  of 
  the 
  land- 
  

   surface 
  debris 
  into 
  rivers 
  was 
  probably 
  the 
  chief 
  source 
  of 
  palaeolithic 
  imple- 
  

   ments 
  in 
  their 
  gravels. 
  

  

  