﻿462 
  PBOCEEDINGS 
  OF 
  THE 
  GEOLOGICAL 
  SOCIETY. 
  [June 
  22, 
  

  

  valley, 
  in 
  which 
  the 
  traces 
  of 
  a 
  glacier 
  are 
  distinct. 
  Manor 
  Water 
  

   is 
  formed 
  by 
  the 
  confluence 
  of 
  two 
  burns, 
  of 
  which 
  that 
  to 
  the 
  east 
  

   descends 
  from 
  a 
  very 
  narrow 
  watershed 
  over 
  bare 
  slopes 
  of 
  grit 
  debris 
  : 
  

   that 
  to 
  the 
  west 
  flows 
  from 
  a 
  patch 
  of 
  Boulder-clay 
  on 
  the 
  shoulder 
  

   of 
  Notman 
  Law. 
  Opposite 
  the 
  cone 
  de 
  dejection 
  formed 
  by 
  this 
  

   latter, 
  which 
  contains 
  a 
  large 
  quantity 
  of 
  rounded, 
  polished, 
  and 
  

   striated 
  stones, 
  there 
  is 
  on 
  the 
  hill-flank 
  a 
  ridge 
  resembling 
  a 
  lateral 
  

   moraine, 
  consisting 
  of 
  sandy 
  gravel 
  made 
  up 
  of 
  angular 
  fragments. 
  

   Midway 
  down 
  the 
  glen 
  there 
  are 
  a 
  few 
  mounds 
  close 
  to 
  the 
  stream, 
  

   the 
  steep 
  slopes 
  being 
  thinly 
  covered 
  with 
  surface-waste. 
  At 
  the 
  

   mouth 
  of 
  the 
  glen 
  lateral 
  ridges 
  rise 
  on 
  the 
  right 
  side, 
  turning 
  

   eastwards 
  along 
  the 
  flank 
  of 
  the 
  hill, 
  and 
  dipping 
  towards 
  the 
  south- 
  

   east 
  corner 
  of 
  the 
  broad 
  alluvial 
  plain 
  which 
  the 
  stream 
  now 
  enters. 
  

   This 
  plain 
  is 
  bounded 
  on 
  the 
  west 
  by 
  the 
  long 
  bare 
  slopes 
  of 
  Dollar 
  

   Law, 
  and 
  on 
  the 
  east 
  by 
  a 
  precipice, 
  or 
  rather 
  succession 
  of 
  cliffs 
  

   rising 
  one 
  above 
  the 
  other, 
  their 
  summits 
  moulded 
  in 
  long 
  smooth 
  

   ridges 
  and 
  dome-shaped 
  bosses, 
  while 
  to 
  the 
  north 
  it 
  is 
  closed 
  in 
  

   by 
  a 
  semicircular 
  ridge 
  pointing 
  down 
  stream, 
  and 
  succeeded 
  by 
  a 
  

   close-set 
  group 
  of 
  mounds 
  whose 
  proper 
  form 
  is 
  much 
  obscured 
  by 
  

   moss. 
  Their 
  upper 
  limit 
  is 
  lost 
  on 
  the 
  left 
  in 
  the 
  cone 
  de 
  dejection 
  

   from 
  a 
  boulder-clay-filled 
  ravine 
  ; 
  and 
  on 
  the 
  right 
  they 
  merge 
  into 
  

   the 
  grass- 
  covered 
  ridges 
  and 
  mouldings 
  probably 
  of 
  the 
  same 
  period, 
  

   namely 
  the 
  earlier 
  glaciation, 
  as 
  those 
  of 
  the 
  Bitch 
  Craig 
  with 
  

   which 
  they 
  are 
  continuous, 
  and 
  whose 
  counterpart 
  is 
  seen 
  at 
  a 
  height 
  

   of 
  600 
  feet, 
  above 
  and 
  behind 
  the 
  Shepherd's 
  House. 
  The 
  mounds 
  

   cannot 
  be 
  traced 
  beyond 
  the 
  cone 
  de 
  dejection. 
  A 
  short 
  way 
  down 
  

   Boulder-clay 
  occurs 
  in 
  the 
  bed 
  of 
  the 
  stream. 
  

  

  The 
  line 
  of 
  1000 
  feet 
  elevation 
  above 
  the 
  sea-level 
  may 
  be 
  taken 
  

   as 
  the 
  lower 
  limit 
  of 
  the 
  glaciers 
  of 
  this 
  district 
  — 
  at 
  least 
  it 
  is 
  the 
  

   lowest 
  point 
  to 
  which 
  moraine-matter 
  now 
  reaches. 
  Nor 
  is 
  it 
  pro- 
  

   bable 
  that 
  it 
  ever 
  extended 
  much 
  lower, 
  as 
  Boulder-clay 
  speedily 
  

   replaces 
  it 
  along 
  the 
  sides 
  of 
  the 
  alluvium 
  in 
  Talla 
  and 
  Megget 
  ; 
  

   while 
  in 
  Manor 
  it 
  appears 
  at 
  Dollar 
  Burn, 
  about 
  1020 
  feet, 
  the 
  

   glacier- 
  detritus 
  probably 
  not 
  coming 
  so 
  low 
  as 
  1050 
  feet. 
  

  

  In 
  a 
  country 
  whose 
  hills 
  are 
  covered 
  with 
  peat, 
  which, 
  though 
  

   still 
  thick, 
  is 
  evidently 
  only 
  a 
  fragment 
  of 
  the 
  former 
  more 
  extensive 
  

   covering, 
  it 
  is 
  a 
  matter 
  of 
  surprise 
  that 
  any 
  traces 
  whatever 
  of 
  the 
  

   loose 
  incoherent 
  deposit 
  from 
  a 
  glacier 
  should 
  have 
  survived 
  the 
  

   joint 
  action 
  of 
  weather 
  and 
  streams, 
  still 
  more 
  that 
  they 
  should 
  have 
  

   survived 
  in 
  the 
  perfection 
  and 
  beauty 
  seen 
  in 
  some 
  of 
  the 
  above- 
  

   described 
  glens. 
  If 
  therefore 
  we 
  find 
  valleys 
  (and 
  there 
  are 
  a 
  few 
  

   such) 
  whose 
  form 
  and 
  position 
  suggest 
  the 
  possibility 
  that 
  they 
  too 
  

   were 
  once 
  the 
  seats 
  of 
  glaciers, 
  while 
  their 
  contents 
  furnish 
  no 
  

   evidence 
  on 
  which 
  to 
  rest 
  a 
  decision 
  either 
  way, 
  we 
  may 
  perhaps 
  be 
  

   allowed 
  hypothetically 
  to 
  regard 
  them 
  as 
  illustrating 
  the 
  last 
  stage 
  

   of 
  decay 
  of 
  which, 
  commencing 
  with 
  Mid 
  Law, 
  whence 
  the 
  ice 
  might 
  

   seem 
  to 
  have 
  but 
  recently 
  retreated, 
  this 
  district 
  furnishes 
  so 
  many 
  

   interesting 
  studies. 
  

  

  