﻿52 
  TWENTY-FIRST 
  REPORT 
  ON 
  THE 
  STATE 
  CABINET. 
  

  

  process 
  must 
  have 
  taken 
  place 
  during 
  the 
  life 
  of 
  the 
  animal 
  or 
  

   immediately 
  after 
  its 
  death, 
  and 
  must 
  have 
  depended 
  upon 
  the 
  

   deposition 
  of 
  these 
  silicates 
  from 
  the 
  waters 
  of 
  the 
  ocean. 
  

  

  The 
  train 
  of 
  investigation 
  thus 
  opened 
  up 
  has 
  been 
  pursued 
  by 
  

   Dr. 
  Giimbel, 
  Director 
  of 
  the 
  Geological 
  Survey 
  of 
  Bavaria, 
  who, 
  

   in 
  a 
  recent 
  remarkable 
  memoir 
  presented 
  to 
  the 
  Royal 
  Society 
  of 
  

   that 
  country, 
  has 
  detailed 
  his 
  results. 
  

  

  Having 
  first 
  detected 
  a 
  fossil 
  identical 
  with 
  the 
  Canadian 
  Eozoon 
  

   (together 
  with 
  several 
  other 
  curious 
  microscopic 
  organic 
  forms 
  not 
  

   yet 
  observed 
  in 
  Canada), 
  replaced 
  by 
  serpentine 
  in 
  a 
  crystalline 
  

   limestone 
  from 
  the 
  primitive 
  gneiss 
  of 
  Bavaria, 
  which 
  he 
  identi- 
  

   fies 
  with 
  the 
  Laurentian 
  system 
  of 
  this 
  country, 
  he 
  next 
  discovered 
  

   a 
  related 
  organism, 
  to 
  which 
  he 
  has 
  given 
  the 
  name 
  of 
  Eozoon 
  

   Bavaricum. 
  This 
  occurs 
  in 
  a 
  crystalline 
  limestone 
  belonging 
  to 
  a 
  

   series 
  of 
  rocks 
  more 
  recent 
  than 
  the 
  Laurentian, 
  but 
  older 
  than 
  the 
  

   primordial 
  zone 
  of 
  the 
  Lower 
  Silurian, 
  and 
  designated 
  by 
  him 
  the 
  

   Hercynian 
  clay-slate 
  series, 
  which 
  he 
  conceives 
  may 
  represent 
  the 
  

   Cambrian 
  system 
  of 
  Great 
  Britain, 
  and 
  perhaps 
  correspond 
  to 
  the 
  

   Huronian 
  series 
  of 
  Canada 
  and 
  the 
  United 
  States. 
  The 
  cast 
  of 
  

   the 
  soft 
  parts 
  of 
  this 
  new 
  fossil 
  is, 
  according 
  to 
  Giimbel, 
  in 
  part 
  

   of 
  serpentine 
  and 
  in 
  part 
  of 
  hornblende. 
  

  

  His 
  attention 
  was 
  next 
  directed 
  to 
  the 
  green 
  hornblende 
  (parga- 
  

   site), 
  which 
  occurs 
  in 
  the 
  crystalline 
  limestone 
  of 
  Pargas, 
  in 
  Fin- 
  

   land, 
  and 
  remains, 
  when 
  the 
  carbonate 
  of 
  lime 
  is 
  dissolved, 
  as 
  a 
  

   coherent 
  mass, 
  closely 
  resembling 
  that 
  left 
  by 
  the 
  irregular 
  or 
  

   acervuline 
  varieties 
  of 
  Eozoon. 
  These 
  grains 
  are 
  described 
  as 
  

   somewhat 
  cylindrical 
  in 
  form, 
  with 
  rounded 
  and 
  pitted 
  surfaces, 
  

   presenting 
  re-entering 
  angles, 
  and 
  resembling, 
  on 
  a 
  small 
  scale, 
  

   the 
  tubers 
  of 
  some 
  plants. 
  Though 
  thus 
  destitute 
  of 
  external 
  

   crystalline 
  form, 
  they 
  have 
  a 
  perfect 
  cleavage, 
  and 
  are 
  entirely 
  

   crystalline 
  within. 
  These 
  small 
  tuberculated 
  grains 
  are 
  joined 
  

   together 
  by 
  short 
  cylinders, 
  and 
  are 
  occasionally 
  traversed 
  by 
  cylin- 
  

   drical 
  openings 
  ; 
  besides 
  w 
  T 
  hich, 
  there 
  are 
  implanted 
  upon 
  them 
  

   small 
  cylinders, 
  often 
  branched, 
  and 
  resembling 
  exactly 
  in 
  size 
  and 
  

   arrangement 
  the 
  casts 
  of 
  the 
  tubuli 
  of 
  Eozoon, 
  in 
  which, 
  or 
  in 
  

   some 
  related 
  organic 
  structure, 
  he 
  conceives 
  the 
  pargasite 
  to 
  have 
  

   been 
  moulded. 
  A 
  white 
  mineral, 
  probably 
  scapolite, 
  was 
  found 
  

   to 
  constitute 
  some 
  tubercles 
  associated 
  with 
  the 
  pargasite, 
  and 
  the 
  

   two 
  mineral 
  species 
  were 
  in 
  some 
  cases 
  united 
  in 
  the 
  same 
  rounded 
  

   grain. 
  

  

  Similar 
  observations 
  were 
  made 
  by 
  him 
  upon 
  specimens 
  of 
  coc* 
  

  

  