﻿1864.] 
  SALTER 
  LINGULA-FLAG 
  FOSSILS. 
  233 
  

  

  transmission 
  upwards 
  of 
  living 
  beings, 
  improved 
  or 
  unimproved, 
  

   over 
  surfaces 
  vast 
  and 
  almost 
  innumerable 
  *. 
  

  

  12. 
  The 
  geological 
  record 
  is 
  much 
  obscured 
  by 
  these 
  gaps, 
  and 
  in 
  

   parts 
  obliterated. 
  The 
  readings 
  must 
  be 
  taken 
  up 
  in 
  different 
  places 
  — 
  

   obtaining 
  general 
  results 
  only 
  ; 
  and 
  this 
  is 
  best 
  done, 
  perhaps, 
  

   with 
  the 
  aid 
  of 
  the 
  fossils. 
  If 
  these 
  be 
  few 
  and 
  simple 
  (I 
  am 
  not 
  

   speaking 
  now 
  of 
  individuals), 
  the 
  duration 
  of 
  any 
  given 
  epoch 
  has 
  

   been 
  short 
  ; 
  while 
  a 
  highly 
  elaborated 
  and 
  plentiful 
  population 
  indi- 
  

   cates 
  prolongation 
  of 
  time. 
  

  

  13. 
  These 
  gaps 
  or 
  blanks 
  by 
  their 
  magnitude 
  and 
  number 
  become 
  

   a 
  great 
  feature 
  in 
  the 
  earth's 
  crust, 
  expressive 
  of 
  unity 
  of 
  design 
  in 
  

  

  time 
  and 
  space. 
  

  

  • 
  ______ 
  

  

  March 
  23, 
  1864. 
  

  

  Sidney 
  Beisley, 
  Esq., 
  The 
  Cedars, 
  Lawrie 
  Park, 
  Sydenham 
  ; 
  The 
  

   Rev. 
  Henry 
  H. 
  Winwood, 
  M.A., 
  Cavendish 
  Crescent, 
  Bath 
  ; 
  James 
  

   Samuel 
  Cooke, 
  Esq., 
  C.E., 
  12 
  Abingdon 
  Street, 
  Westminster 
  ; 
  Robert 
  

   Damon, 
  Esq., 
  Weymouth 
  ; 
  The 
  Rev. 
  Dr. 
  Dendy, 
  12 
  Vicarage 
  Gar- 
  

   dens, 
  Kensington 
  ; 
  and 
  John 
  Whitfield, 
  Esq., 
  Mem. 
  Inst. 
  C.E., 
  89 
  

   Great 
  Portland 
  Street, 
  W., 
  were 
  elected 
  Eellows. 
  

  

  The 
  following 
  communications 
  were 
  read 
  : 
  — 
  

  

  1. 
  On 
  some 
  New 
  Eossils 
  from 
  the 
  Lingttla-flags 
  of 
  Wales. 
  

  

  By 
  J. 
  W. 
  Salter, 
  Esq., 
  E.G.S., 
  A.L.S. 
  

  

  (Plate 
  XIII.) 
  

  

  When 
  the 
  imperfect 
  fragments 
  of 
  a 
  great 
  Trilobite 
  were 
  discovered 
  

   by 
  myself 
  in 
  the 
  Lingula-flags 
  of 
  St. 
  David's, 
  and 
  brought 
  before 
  the 
  

   Society 
  in 
  February 
  1863 
  (Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  xix. 
  p. 
  275), 
  

   I 
  had 
  no 
  reason 
  to 
  suppose 
  there 
  was 
  a 
  chance 
  of 
  obtaining 
  more 
  

   specimens. 
  The 
  occurrence 
  of 
  so 
  conspicuous 
  and 
  characteristic 
  a 
  

   genus 
  as 
  Paradoxides 
  in 
  our 
  Primordial 
  zone 
  was, 
  however, 
  worthy 
  of 
  

   record, 
  though 
  the 
  description 
  was 
  necessarily 
  incomplete. 
  

  

  But 
  by 
  the 
  cooperation 
  of 
  Professor 
  Griffiths, 
  of 
  Liverpool, 
  and 
  

   particularly 
  the 
  zealous 
  examination 
  of 
  the 
  beds 
  by 
  Mr. 
  Henry 
  

   Hicks, 
  surgeon 
  at 
  St. 
  David's, 
  we 
  are 
  now 
  in 
  possession 
  of 
  much 
  

   more 
  abundant 
  and 
  perfect 
  materials. 
  

  

  Mr. 
  Hicks's 
  discoveries 
  have 
  really 
  made 
  a 
  large 
  addition 
  to 
  the 
  

   Primordial 
  fauna. 
  It 
  has 
  been 
  hitherto 
  a 
  scanty 
  one 
  in 
  Britain, 
  

   perhaps 
  for 
  the 
  reason 
  only 
  that 
  we 
  have 
  had 
  very 
  little 
  opportunity 
  

   of 
  working 
  at 
  the 
  formation. 
  And 
  yet, 
  in 
  this 
  favoured 
  spot 
  near 
  

   St. 
  David's, 
  we 
  have 
  suddenly 
  come 
  upon 
  a 
  collection 
  of 
  new 
  species, 
  

   and 
  the 
  locality 
  promises 
  many 
  more. 
  

  

  We 
  have 
  obtained 
  new 
  genera, 
  all 
  of 
  a 
  Primordial 
  character 
  ; 
  and 
  

   among 
  them 
  a 
  new 
  Sponge, 
  an 
  organism 
  new 
  to 
  the 
  Primordial 
  zone 
  ; 
  

   for 
  the 
  Protozoa 
  have 
  not 
  hitherto 
  been 
  found 
  in 
  strata 
  certainly 
  older 
  

  

  * 
  See 
  the 
  striking 
  instance 
  of 
  independence 
  in 
  the 
  Northern 
  Alps, 
  as 
  indicated 
  

   by 
  the 
  grand 
  rupture 
  and 
  hiatus 
  between 
  the 
  Nummulitic 
  (Eocene) 
  formation 
  

   and 
  the 
  younger 
  Molasse 
  and 
  Nagelfluh, 
  as 
  explained 
  by 
  Sir 
  E. 
  I. 
  Murchison 
  in 
  

   his 
  paper 
  on 
  the 
  Alps, 
  Quart. 
  Journ. 
  Geol. 
  Soc. 
  vol. 
  v. 
  p. 
  304. 
  

  

  r2 
  

  

  