﻿XCV1 
  PROCEEDINGS 
  OF 
  THE 
  GEOLOGICAL 
  SOCIETY. 
  [Aug. 
  1 
  897, 
  

  

  April 
  28th, 
  1897. 
  

  

  Dr. 
  Henry 
  Hicks, 
  F.R.S., 
  President, 
  in 
  the 
  Chair. 
  

  

  H. 
  F. 
  Bulman, 
  Esq., 
  Byermoor, 
  Burnopfield, 
  R.S.O., 
  Co. 
  Durham 
  ; 
  

   and 
  Christian 
  Adolph 
  Heussler, 
  Esq., 
  Kalgoorlie, 
  Western 
  Australia, 
  

   wore 
  elected 
  Fellows 
  of 
  the 
  Society. 
  

  

  The 
  List 
  of 
  Donations 
  to 
  the 
  Library 
  was 
  read. 
  

  

  The 
  President, 
  referring 
  to 
  the 
  exhibits 
  of 
  models 
  of 
  the 
  dorsal 
  

   and 
  ventral 
  aspect 
  of 
  Triartlirus, 
  said 
  that 
  these 
  had 
  been 
  prepared 
  

   and 
  sent 
  to 
  him 
  by 
  Mr. 
  Charles 
  E. 
  Beecher, 
  of 
  Yale 
  University 
  

   Museum. 
  He 
  was 
  sure 
  that 
  they 
  would 
  prove 
  of 
  great 
  interest 
  to 
  

   the 
  Fellows, 
  who 
  were 
  well 
  acquainted 
  with 
  the 
  extremely 
  careful 
  

   work 
  which 
  Mr. 
  Beecher 
  had 
  done 
  in 
  connexion 
  with 
  Triarthrus. 
  

  

  The 
  following 
  communications 
  were 
  read 
  : 
  — 
  

  

  1. 
  ' 
  Note 
  on 
  a 
  Portion 
  of 
  the 
  Nubian 
  Desert 
  South-east 
  of 
  

   Korosko.' 
  By 
  Capt. 
  H. 
  G. 
  Lyons, 
  E.E., 
  F.G.S. 
  With 
  Notes 
  on 
  the 
  

   Petrology 
  by 
  Miss 
  C. 
  A. 
  Baisin, 
  B.Sc. 
  (Communicated 
  by 
  Prof. 
  

   Bonney, 
  D.Sc, 
  F.B.S., 
  V.P.G.S.) 
  And 
  Water-Analyses 
  by 
  Miss 
  E. 
  

   Aston, 
  B.Sc. 
  (Idem.) 
  

  

  2. 
  ' 
  On 
  the 
  Origin 
  of 
  some 
  of 
  the 
  Gneisses 
  of 
  Anglesey/ 
  By 
  

   Charles 
  Callaway, 
  M.A., 
  D.Sc, 
  F.G.S. 
  

  

  The 
  following 
  specimens 
  were 
  exhibited, 
  in 
  addition 
  to 
  those 
  

   mentioned 
  above 
  : 
  — 
  

  

  Rock-specimens 
  and 
  Microscope-sections, 
  exhibited 
  by 
  Capt. 
  H. 
  

   G. 
  Lyons, 
  E.E., 
  F.G.S., 
  in 
  illustration 
  of 
  his 
  paper. 
  

  

  A 
  series 
  of 
  Microscope-sections, 
  exhibited 
  by 
  Dr. 
  C. 
  Callaway, 
  

   M.A., 
  F.G.S., 
  in 
  illustration 
  of 
  his 
  paper. 
  

  

  Specimens 
  of 
  Flint-implements 
  from 
  the 
  Test 
  Valley, 
  Hampshire, 
  

   and 
  Thornton 
  Heath, 
  near 
  Croydon, 
  exhibited 
  by 
  A. 
  E. 
  Salter, 
  Esq., 
  

   B.Sc, 
  F.G.S. 
  

  

  A 
  specimen 
  of 
  Arborescent 
  Carboniferous 
  Limestone 
  from 
  Brentry 
  

   Hill, 
  near 
  Henbury, 
  Bristol, 
  obtained 
  by 
  Spencer 
  G. 
  Perceval, 
  Esq., 
  

   and 
  exhibited 
  by 
  the 
  Director-General 
  of 
  H.M. 
  Geological 
  Survey. 
  

  

  Sheet 
  20 
  (Killean) 
  and 
  Sheet 
  103 
  (Golspie) 
  of 
  the 
  Geological 
  

   Survey 
  of 
  Scotland, 
  1-inch 
  map, 
  presented 
  by 
  the 
  Director-General 
  

   of 
  H.M. 
  Geological 
  Survey. 
  

  

  Sheets 
  Zwingenberg 
  and 
  Bensheim 
  of 
  the 
  2 
  ^-^ 
  Geological 
  Survey 
  

   Map 
  of 
  the 
  Grand 
  Duchy 
  of 
  Hesse, 
  presented 
  by 
  the 
  Director 
  of 
  that 
  

   Survey. 
  

  

  