﻿24 
  

  

  ME. 
  H. 
  T. 
  BEOWN 
  OX 
  THE 
  PEEDJIAX 
  

  

  which 
  I 
  have 
  collected 
  and 
  examined 
  a 
  very 
  large 
  number 
  of 
  frag- 
  

   ments. 
  

  

  (1) 
  Boothorpe 
  Clay 
  "Works, 
  Woodville. 
  

  

  (2) 
  Packington. 
  

  

  (3) 
  JSewhall 
  Park 
  Colliery. 
  

  

  (4) 
  Measham 
  (section 
  by 
  side 
  of 
  canal). 
  

  

  (5) 
  Hartshorn 
  Brook 
  (near 
  Bugley 
  Cottage). 
  

  

  (6) 
  Polesworth. 
  

  

  The 
  first 
  five 
  localities 
  are 
  all 
  within 
  the 
  area 
  of 
  the 
  Leicestershire 
  

   Coal-field. 
  The 
  beds 
  from 
  which 
  the 
  fragments 
  of 
  Xo. 
  6 
  were 
  ob- 
  

   tained 
  are 
  exposed 
  in 
  a 
  road-section 
  half 
  a 
  mile 
  east 
  of 
  the 
  village 
  of 
  

   Polesworth, 
  at 
  the 
  north 
  end 
  of 
  the 
  Warwickshire 
  Coal-field. 
  This 
  

   outcrop 
  of 
  consolidated 
  breccia 
  occurs 
  within 
  six 
  miles 
  of 
  the 
  most 
  

   southerly 
  exposures 
  of 
  the 
  Permian 
  beds 
  of 
  the 
  Leicestershire 
  Coal- 
  

   field, 
  and 
  enables 
  us 
  to 
  link 
  these 
  latter 
  with 
  the 
  Permian 
  which 
  

   is 
  so 
  well 
  developed 
  further 
  south, 
  in 
  the 
  neighbourhood 
  of 
  Coventry 
  

   and 
  Warwick. 
  

  

  The 
  fragments 
  which 
  most 
  largely 
  predominate 
  in 
  the 
  breccias 
  of 
  

   the 
  above-mentioned 
  localities 
  are 
  felspatJiie 
  grits, 
  graduating 
  in 
  one 
  

   direction 
  insensibly 
  into 
  well-defined 
  felspaihic 
  quartzites, 
  and 
  in 
  the 
  

   other 
  into 
  gritty, 
  more 
  or 
  less 
  felspatJiie, 
  slates. 
  Besides 
  these 
  we 
  

   have 
  occasional 
  fragments 
  of 
  grey 
  flinty 
  slates 
  and 
  argillites, 
  forming 
  

   with 
  the 
  grits 
  &c. 
  a 
  series 
  of 
  rocks, 
  the 
  members 
  of 
  which 
  hang 
  on 
  

   to 
  each 
  other, 
  both 
  macroscopically 
  and 
  microscopically, 
  in 
  such 
  a 
  

   way 
  as 
  to 
  indicate 
  that 
  they 
  have 
  been 
  derived 
  from 
  beds 
  of 
  about 
  

   the 
  same 
  age. 
  

  

  In 
  addition 
  we 
  often 
  find 
  large 
  pieces 
  of 
  vein-quartz, 
  volcanic 
  ash, 
  

   and 
  more 
  or 
  less 
  decomposed 
  igneous 
  rocks; 
  also 
  a 
  very 
  .variable 
  

   number 
  of 
  fragments 
  of 
  Lower, 
  Middle, 
  and 
  Upper 
  Carboniferous 
  age. 
  

  

  The 
  following 
  is 
  a 
  numerical 
  analysis 
  of 
  a 
  very 
  large 
  number 
  of 
  

   fragments 
  from 
  four 
  of 
  the 
  above-mentioned 
  spots. 
  The 
  numbers 
  

   are 
  expressed 
  in 
  percentages. 
  

  

  Felspathic 
  Grits 
  and 
  Quartzites 
  

  

  Gritty 
  Slates 
  

  

  Grey 
  flinty 
  Slate 
  

  

  Argillites 
  

  

  Yein-Quartz 
  

  

  Volcanic 
  Ash 
  

  

  Igneous 
  Eocks, 
  more 
  or 
  less 
  decomposed 
  . 
  . 
  . 
  

  

  ' 
  Impure 
  argillaceous 
  Limestone, 
  resembling 
  

  

  basement 
  beds 
  of 
  Mountain 
  Limestone 
  . 
  . 
  . 
  

  

  Compact 
  Mountain 
  Limestone 
  

  

  Carboniferous 
  Grits 
  and 
  hamaatite 
  

  

  (1). 
  

  

  (2). 
  

  

  (3). 
  

  

  (6). 
  

  

  Boothorpe 
  

  

  Clay 
  

  

  Works. 
  

  

  Pack- 
  

   ington. 
  

  

  3"ewhall 
  

   Park 
  

  

  Colliery. 
  

  

  Poles- 
  

   worth. 
  

  

  751 
  

  

  50-8 
  

  

  345 
  

  

  84-0 
  

  

  9-7 
  

  

  34-6 
  

  

  110 
  

  

  

  32 
  

  

  •8 
  

  

  9-8 
  

  

  2-6 
  

  

  1-1 
  

  

  

  

  

  16 
  

  

  

  1-2 
  

  

  

  2-2 
  

  

  •8 
  

  

  1-2 
  

  

  

  44 
  

  

  7-2 
  

  

  135 
  

  

  40 
  

  

  9.9 
  

  

  

  

  94 
  

  

  •5 
  

  

  5-8 
  

  

  28-8 
  

  

  

  lOO'O 
  

  

  1000 
  

  

  100-0 
  

  

  100-0 
  

  

  