﻿158 
  Scientific 
  lntellige?ice. 
  

  

  fixed 
  at 
  the 
  lower 
  limit 
  of 
  the 
  Olenellus 
  fauna. 
  With 
  this 
  it 
  is 
  pro- 
  

   posed 
  to 
  include 
  the 
  Protolenus 
  horizon 
  of 
  Matthew, 
  which 
  

   terminates 
  below 
  in 
  a 
  barren 
  sandstone 
  in 
  both 
  southern 
  New 
  

   Brunswick 
  and 
  Newfoundland. 
  

  

  Beneath 
  this 
  Cambrian 
  system 
  lies 
  the 
  Etcheminian 
  system 
  of 
  

   Matthew, 
  composed 
  of 
  red 
  and 
  greenish 
  slates 
  and 
  a 
  basal 
  con- 
  

   glomerate, 
  and 
  containing 
  no 
  trilobites 
  but 
  fossils 
  referred 
  to 
  

   Ostracods, 
  Mollusks, 
  Worms, 
  Brachiopods, 
  Cystideans, 
  and 
  Proto- 
  

   zoa. 
  The 
  following 
  formations 
  are 
  recognized 
  as 
  belonging 
  to 
  the 
  

   Echeminian 
  system 
  : 
  viz. 
  the 
  Signal 
  Hill 
  series 
  and 
  Random 
  

   Sound 
  series 
  of 
  Newfoundland, 
  the 
  Keweenian 
  or 
  Keweenawan 
  

   series 
  of 
  Lake 
  Superior, 
  and 
  the 
  Chuar 
  and 
  Grand 
  Canyon 
  for- 
  

   mations 
  of 
  Arizona. 
  The 
  author 
  regards 
  Algonkian 
  as 
  a 
  term 
  

   "unhappy 
  in 
  form 
  and 
  cause, 
  and 
  perhaps 
  should 
  be 
  dropped. 
  " 
  

   The 
  Echeminian 
  is 
  regarded 
  as 
  the 
  earliest 
  system 
  of 
  Paleozoic 
  

   time. 
  

  

  Below 
  the 
  Paleozoic 
  rocks 
  are 
  two 
  systems 
  of 
  the 
  Eozoic. 
  The 
  

   upper 
  member, 
  the 
  Huronian 
  system, 
  is 
  separated 
  above 
  and 
  

   below 
  by 
  unconformities 
  from 
  the 
  contiguous 
  rocks. 
  " 
  Laminated 
  

   bodies 
  comparable 
  with 
  Eozoan, 
  burrows 
  of 
  worms, 
  spicules 
  of 
  

   sponges 
  and 
  indeterminate 
  fragments 
  referable 
  to 
  Algae 
  or 
  to 
  Zoo- 
  

   phytes," 
  are 
  reported 
  from 
  the 
  rocks 
  of 
  this 
  system. 
  Rocks 
  of 
  

   the 
  system 
  are 
  recognized 
  in 
  New 
  Brunswick, 
  Newfoundland, 
  

   Lake 
  Superior 
  and 
  Lake 
  Huron, 
  and 
  also 
  apparently 
  in 
  Colorado. 
  

   The 
  lower 
  member 
  of 
  the 
  Eozoic 
  is 
  named 
  the 
  Grenvillian 
  sys- 
  

   tem 
  (the 
  upper 
  part 
  of 
  Logan's 
  Lower 
  Laurentian). 
  The 
  rocks 
  

   of 
  this 
  system 
  are 
  found 
  in 
  the 
  St. 
  Lawrence 
  and 
  Ottawa 
  val- 
  

   leys, 
  in 
  New 
  Brunswick, 
  the 
  Adirondacks 
  and 
  eastern 
  slope 
  of 
  

   the 
  Appalachians. 
  Among 
  the 
  rocks 
  are 
  found 
  belts 
  of 
  limestone 
  

   " 
  associated 
  with 
  whit 
  seem 
  to 
  be 
  altered 
  sedimentary 
  beds, 
  and 
  

   in 
  places 
  rich 
  in 
  graphite 
  and 
  in 
  apatite." 
  The 
  fossils 
  recognized 
  

   in 
  this 
  system 
  are 
  said 
  to 
  be 
  "Protozoan 
  alone, 
  represented 
  by 
  

   peculiar 
  and 
  gigantic 
  forms, 
  as 
  Eozoan 
  and 
  Archaeozoan, 
  and 
  

   some 
  smaller 
  types 
  (Archseospherinae)." 
  h. 
  s. 
  w. 
  

  

  6. 
  Antiquity 
  of 
  man 
  in 
  Britain. 
  — 
  The 
  number 
  of 
  Natural 
  

   Science 
  for 
  January, 
  1897, 
  contains 
  a 
  note 
  of 
  recent 
  discoveries 
  

   by 
  Mr. 
  W. 
  J. 
  Lewis 
  Abbott 
  of 
  what 
  are 
  believed 
  to 
  be 
  evidences 
  

   of 
  the 
  existence 
  of 
  man 
  in 
  Britain 
  at 
  a 
  much 
  earlier 
  period 
  than 
  

   that 
  which 
  has 
  been 
  previously 
  assigned. 
  The 
  specimens 
  in 
  

   question 
  are 
  a 
  series 
  of 
  flints 
  which 
  at 
  least 
  bear 
  a 
  striking 
  

   resemblance 
  to 
  the 
  work 
  of 
  man, 
  and 
  which 
  were 
  obtained 
  from 
  

   the 
  Cromer 
  Forest 
  Bed 
  at 
  Runton. 
  They 
  were 
  found 
  there 
  

   sticking 
  in 
  the 
  iron 
  pan. 
  This 
  Forest 
  Bed 
  is 
  now 
  usually 
  

   regarded 
  as 
  forming 
  the 
  top 
  of 
  the 
  Pliocene 
  series, 
  and 
  contains 
  

   forms 
  of 
  the 
  cave-bear, 
  rhinoceros, 
  elephant, 
  deer, 
  and 
  other 
  

   mammals 
  living 
  and 
  extinct. 
  A 
  detailed 
  account 
  of 
  the 
  speci- 
  

   mens 
  is 
  promised 
  for 
  the 
  February 
  number. 
  

  

  7. 
  On 
  the 
  Age 
  of 
  the 
  Lovier 
  Coals 
  of 
  Missouri 
  • 
  by 
  Da.vid 
  

   White. 
  (Abstract 
  of 
  a 
  paper 
  read 
  before 
  the 
  Geological 
  Society 
  

   of 
  America, 
  Dec. 
  31, 
  1896.) 
  — 
  As 
  the 
  result 
  of 
  the 
  study 
  of 
  the 
  

  

  