﻿470 
  

  

  PROCEEDINGS 
  

  

  OF 
  

  

  THE 
  GEOLOGICAL 
  SOCIETY. 
  

  

  POSTPONED 
  PAPERS. 
  

  

  On 
  the 
  Fossil 
  Echinidj: 
  of 
  Malta. 
  By 
  Thomas 
  Weight, 
  M.D., 
  

   F.R.S., 
  F.G.S. 
  With 
  additional 
  Notes 
  on 
  the 
  Miocene 
  Beds 
  of 
  

   the 
  Island, 
  and 
  the 
  Steatigraphical 
  Distribution 
  of 
  the 
  Species 
  

   therein 
  ; 
  by 
  A. 
  Leith 
  Adams, 
  A.M., 
  M.B., 
  22nd 
  Regiment, 
  Malta. 
  

  

  [Read 
  February 
  4, 
  1863 
  *.] 
  

  

  [Plates 
  XXI. 
  & 
  XXII.] 
  

  

  Contents. 
  

  

  Description 
  of 
  the 
  Miocene 
  Beds 
  

   of 
  Malta. 
  

  

  1. 
  The 
  Upper 
  Limestone. 
  

  

  2. 
  The 
  Sand-bed. 
  

  

  3. 
  The 
  Marl. 
  

  

  4. 
  The 
  Calcareous 
  Sandstone. 
  

  

  5. 
  The 
  Lower 
  Limestone. 
  

   II. 
  Descriptions 
  of 
  the 
  species 
  of 
  Eclii- 
  

   noderms. 
  

   III. 
  Table 
  of 
  the 
  Stratigraphical 
  Dis- 
  

   tribution 
  of 
  the 
  Echinoderms. 
  

  

  I. 
  Description 
  of 
  the 
  Miocene 
  Beds 
  of 
  Malta. 
  

   By 
  A. 
  Leith 
  Adams, 
  A.M., 
  M.B., 
  Surgeon 
  22nd 
  Regiment. 
  

  

  The 
  following 
  classification 
  of 
  the 
  Maltese 
  rocks 
  is 
  a 
  modification 
  of 
  

   that 
  originally 
  proposed 
  by 
  Capt. 
  Spratt, 
  R.N.t, 
  and 
  followed 
  by 
  Earl 
  

   Ducie 
  in 
  constructing 
  his 
  Geological 
  Map 
  of 
  the 
  Maltese 
  Islands, 
  and 
  

   with 
  some 
  differences 
  by 
  Dr. 
  Wright 
  in 
  his 
  ' 
  Monograph 
  on 
  the 
  Fossil 
  

   Echinoderms 
  of 
  the 
  Island 
  of 
  Malta.' 
  

  

  1. 
  The 
  Upper 
  Limestone. 
  — 
  This 
  bed 
  was 
  originally 
  called 
  Coral- 
  

   limestone 
  by 
  Capt. 
  Spratt, 
  for 
  reasons 
  not 
  apparent 
  unless 
  it 
  be 
  that 
  

   he 
  mistook 
  the 
  Corallines 
  in 
  its 
  lower 
  stratum 
  for 
  Corals. 
  The 
  latter 
  

   are 
  not 
  common, 
  at 
  least 
  not 
  more 
  so 
  in 
  this 
  than 
  in 
  the 
  Lower 
  Lime- 
  

   stone. 
  ' 
  It 
  is 
  the 
  Coralline 
  limestone 
  of 
  Dr. 
  Wright, 
  from 
  the 
  abun- 
  

   dance 
  of 
  species 
  of 
  these 
  Plants, 
  which 
  however 
  affect 
  the 
  lowermost 
  

   portion 
  of 
  the 
  bed 
  only. 
  Seeing 
  therefore 
  that 
  a 
  large 
  extent 
  of 
  the 
  

   deposit 
  is 
  without 
  a 
  trace 
  of 
  Corallines, 
  I 
  prefer 
  the 
  above 
  simple 
  

   denomination 
  as 
  least 
  likely 
  to 
  embarrass 
  the 
  student 
  or 
  lead 
  to 
  con- 
  

   fusion. 
  

  

  * 
  For 
  the 
  other 
  communications 
  read 
  at 
  this 
  Evening-meeting, 
  see 
  Quart. 
  

   Journ. 
  Geol. 
  Soc. 
  vol. 
  xix. 
  p. 
  260. 
  

  

  t 
  On 
  the 
  Geology 
  of 
  Malta, 
  reprinted 
  from 
  his 
  paper 
  " 
  On 
  the 
  Geology 
  of 
  the 
  

   Maltese 
  Islands," 
  Proc. 
  Geol. 
  Soc. 
  vol. 
  iv. 
  p, 
  225, 
  1854. 
  

  

  