﻿570 
  Scientific 
  Intelligence. 
  

  

  and 
  structure 
  of 
  the 
  ores 
  at 
  Kalgoorlie 
  and 
  Boulder 
  have 
  been 
  

   studied 
  by 
  Mr. 
  Simpson. 
  The 
  report 
  is 
  illustrated 
  by 
  40 
  micro 
  - 
  

   photographs. 
  

  

  (2) 
  Bulletin 
  No. 
  43, 
  Penological 
  Contributions 
  to 
  the 
  Geologj 
  1 
  - 
  

   of 
  Western 
  Australia, 
  by 
  R. 
  A. 
  Farquharson, 
  Petrologist. 
  Pp. 
  

   100, 
  16 
  figs. 
  The 
  first 
  report 
  issued 
  by 
  the 
  recently 
  appointed 
  

   petrographer 
  of 
  the 
  Western 
  Australian 
  Survey 
  includes 
  an 
  ele- 
  

   mentary 
  treatise 
  on 
  rocks 
  and 
  rock-making 
  minerals, 
  and 
  petro- 
  

   graphic 
  descriptions 
  with 
  analyses 
  of 
  selected 
  rocks 
  from 
  eight 
  

   different 
  areas. 
  

  

  (3) 
  Geological 
  Investigations 
  in 
  the 
  country 
  lying 
  between 
  Lati- 
  

   tude 
  28° 
  and 
  29° 
  45' 
  south, 
  and 
  Longitude 
  1*18*° 
  15' 
  and 
  120° 
  40' 
  

   east, 
  embracing 
  parts 
  of 
  the 
  North 
  Coolgardie 
  and 
  East 
  Murchi- 
  

   son 
  Goldfields, 
  by 
  H. 
  W. 
  B. 
  Talbot. 
  Pp. 
  61, 
  11 
  figs., 
  1 
  geol. 
  

   map. 
  Beginning 
  with 
  the 
  report 
  of 
  Mr. 
  Talbot, 
  the 
  Survey 
  plans 
  

   to 
  issue 
  a 
  series 
  of 
  bulletins 
  dealing 
  with 
  the 
  geology 
  outside 
  of 
  

   those 
  areas 
  which, 
  because 
  of 
  their 
  commercial 
  importance, 
  have 
  

   already 
  been 
  described. 
  A 
  reconnaissance 
  geological 
  map 
  of 
  

   large 
  but 
  little 
  known 
  territory 
  is 
  expected 
  to 
  be 
  the 
  result 
  of 
  

   this 
  work. 
  The 
  nature 
  of 
  the 
  country 
  traversed 
  by 
  Mr. 
  Talbot 
  

   and 
  Mr. 
  Homan 
  (topographer) 
  may 
  be 
  judged 
  from 
  the 
  fact 
  that 
  

   camels 
  were 
  used 
  for 
  riding 
  and 
  packing. 
  

  

  (4) 
  Bulletin 
  No. 
  46, 
  A 
  General 
  Description 
  of 
  the 
  northern 
  

   portion 
  of 
  the 
  Yilgarn 
  Goldfield 
  and 
  the 
  southern 
  portion 
  of 
  the 
  

   North 
  Coolgardie 
  Goldfield, 
  by 
  II. 
  P. 
  Woodward. 
  Pp. 
  23, 
  2 
  

   maps. 
  This 
  report 
  is 
  designed 
  particularly 
  as 
  a 
  guide 
  to 
  pro- 
  

   spectors 
  and 
  its 
  chief 
  value 
  lies 
  in 
  the 
  delineation 
  of 
  large 
  sand- 
  

   covered 
  granite 
  areas 
  which 
  possess 
  no 
  economic 
  importance. 
  

  

  (5) 
  Bulletin 
  No. 
  47, 
  The 
  Mining 
  Geology 
  of 
  the 
  Kanowna 
  

   Main 
  Reef 
  Line, 
  Kanowna, 
  Northeast 
  Coolgardie 
  Goldfield, 
  by 
  

   T. 
  Blatchford 
  and 
  J. 
  T. 
  Jutson. 
  With 
  Penological 
  notes 
  by 
  

   R. 
  A. 
  Farquharson, 
  and 
  Chemical 
  Notes 
  by 
  E. 
  S. 
  Simpson. 
  

   Pp. 
  106 
  ; 
  3 
  maps, 
  15 
  figs. 
  The 
  geology 
  of 
  the 
  region 
  including 
  

   Kanowna 
  has 
  been 
  discussed 
  in 
  several 
  reports 
  previously 
  issued 
  

   by 
  the 
  Western 
  Australia 
  Survey. 
  The 
  present 
  bulletin 
  covers 
  

   the 
  results 
  of 
  a 
  special 
  economic 
  survey 
  of 
  the 
  " 
  Kanowna 
  Main 
  

   Reef" 
  and 
  contains 
  much 
  structural 
  and 
  petrographic 
  detail. 
  

  

  (6) 
  Bulletin 
  No. 
  50, 
  The 
  Geology 
  and 
  Mineral 
  Industry 
  of 
  

   Western 
  Australia, 
  by 
  A. 
  Gibb 
  Maitland 
  and 
  A. 
  Montgomery. 
  

   Pp. 
  68, 
  1 
  map, 
  7 
  figs. 
  The 
  summary 
  of 
  the 
  geology 
  of 
  Western 
  

   Australia 
  will 
  be 
  found 
  most 
  helpful, 
  especially 
  to 
  geologists 
  who 
  

   are 
  unacquainted 
  with 
  the 
  local 
  features. 
  Heretofore 
  it 
  has 
  been 
  

   well 
  nigh 
  impossible 
  to 
  gain 
  from 
  economic 
  reports 
  on 
  widely 
  

   separated 
  areas 
  a 
  comprehensive 
  view 
  of 
  the 
  earth 
  history 
  of 
  this 
  

   part 
  of 
  the 
  world. 
  Following 
  a 
  short 
  description 
  of 
  the 
  Coastal 
  

   Plain, 
  the 
  Hill 
  Ranges, 
  and 
  the 
  Interior 
  Plateaus 
  and 
  Plains, 
  

   the 
  authors 
  give 
  a 
  brief 
  but 
  clear 
  account 
  of 
  the 
  pre-Cambrian 
  

   granites, 
  gneisses 
  and 
  schists, 
  containing 
  laminated 
  cherts 
  and 
  

   jaspers, 
  which 
  cover 
  975,920 
  square 
  miles 
  ; 
  of 
  the 
  Cambrian 
  

   identified 
  by 
  Olenellus 
  and 
  Salterella 
  ; 
  of 
  the 
  Nullagine 
  series, 
  

  

  