﻿Geological 
  Society. 
  223 
  

  

  localities) 
  and 
  some 
  are 
  very 
  rare, 
  though 
  the 
  small 
  species 
  of 
  

   Eablemma 
  may 
  be 
  liable 
  to 
  be 
  overlooked, 
  from 
  their 
  inconspicuous 
  

   appearance 
  ; 
  they 
  frequent 
  waste 
  ground. 
  

  

  The 
  Erastriance, 
  as 
  recognized 
  by 
  Sir 
  George 
  Hampson, 
  are 
  

   characterized 
  as 
  follows 
  : 
  — 
  " 
  Vein 
  5 
  of 
  the 
  hind 
  wing 
  is 
  typically 
  

   nearly 
  fully 
  developed 
  and 
  usually 
  arises 
  from 
  well 
  above 
  the 
  

   lower 
  angle 
  of 
  the 
  cell, 
  although 
  it 
  is 
  rarely 
  obsolescent 
  and 
  then 
  

   springs 
  from 
  the 
  middle 
  of 
  the 
  discocellulars 
  ; 
  the 
  eyes 
  are 
  not 
  

   hairy 
  ; 
  the 
  tibiae 
  are 
  not 
  spined 
  ; 
  and 
  the 
  larvse 
  have 
  the 
  first 
  

   pair 
  or 
  first 
  two 
  pairs 
  of 
  prolegs 
  aborted. 
  

  

  " 
  The 
  subfamily 
  is 
  to 
  a 
  large 
  extent 
  confined 
  to 
  the 
  tropical 
  and 
  

   warmer 
  temperate 
  regions, 
  especially 
  the 
  more 
  arid 
  districts, 
  

   and 
  it 
  has 
  few 
  species 
  in 
  the 
  colder 
  zones, 
  and 
  none 
  in 
  the 
  Arctic 
  

   and 
  Alpine 
  zones." 
  

  

  We 
  may 
  add 
  that 
  the 
  species 
  are 
  usually 
  of 
  small 
  or 
  moderate 
  

   size 
  and 
  of 
  varied 
  patterns, 
  and 
  often 
  attractively 
  coloured, 
  the 
  so- 
  

   called 
  " 
  iVb^urt-pattern 
  " 
  being 
  rarely 
  distinctly 
  indicated. 
  

  

  PROCEEDINGS 
  OF 
  LEARNED 
  SOCIETIES. 
  

  

  GEOLOGICAL 
  SOCIETY. 
  

  

  January 
  11th, 
  1911.— 
  Prof. 
  W. 
  W. 
  Watts, 
  Sc.D., 
  M.Sc, 
  F.R.S., 
  

   President, 
  in 
  the 
  Chair. 
  

  

  The 
  following 
  communication 
  was 
  read 
  : 
  — 
  

  

  ' 
  The 
  Zonal 
  Classification 
  of 
  the 
  Salopian 
  Rocks 
  of 
  Cautley 
  

   and 
  Ravenstonedale.' 
  By 
  Miss 
  G. 
  R. 
  Watney 
  and 
  Miss 
  E. 
  G. 
  

   Welch. 
  

  

  The 
  district 
  described 
  lies 
  north-east 
  of 
  Sedbergh 
  and 
  west 
  of 
  

   the 
  Dent 
  Fault. 
  An 
  account 
  of 
  the 
  literature 
  treating 
  of 
  previous 
  

   work 
  is 
  given, 
  and 
  the 
  succession 
  of 
  the 
  zones 
  is 
  described. 
  They 
  

   are 
  as 
  follows 
  : 
  — 
  

  

  T 
  . 
  f 
  D 
  3. 
  Zone 
  of 
  Monograptus 
  leinhvardinensis. 
  

   -j- 
  \ 
  D 
  2. 
  „ 
  Monograptus 
  nilssoni. 
  

  

  [ 
  D 
  1. 
  „ 
  Phacops 
  obtusicaudatus. 
  

  

  )C 
  4. 
  ,, 
  Cyrtograptus 
  lundgreni. 
  

  

  C 
  3. 
  „ 
  Cyrtograptus 
  rigidus. 
  

  

  C 
  2. 
  ,, 
  Monograptus 
  riccartonensis. 
  

  

  CI. 
  ,, 
  Cyrtograptus 
  murchisoni. 
  

  

  Below 
  are 
  Valentian 
  rocks 
  (A 
  & 
  B 
  divisions 
  of 
  the 
  Stockdale 
  

   Shales). 
  

  

  The 
  Wenlock 
  Beds 
  are 
  most 
  fully 
  developed 
  in 
  some 
  streams 
  

   entering 
  the 
  River 
  Rawthey 
  from 
  the 
  south. 
  The 
  detailed 
  succession 
  

   of 
  these 
  is 
  given, 
  and 
  confirmatory 
  sections 
  are 
  described 
  in 
  other 
  

   parts 
  of 
  the 
  district. 
  

  

  