﻿580 
  

  

  Proceedings. 
  

  

  specimens, 
  illustrating 
  tlie 
  geology 
  of 
  Canada, 
  from 
  Mr. 
  A. 
  E. 
  C. 
  Selwyn, 
  

   F.E.S., 
  the 
  Director 
  of 
  the 
  Geological 
  Survey 
  of 
  the 
  Province, 
  have 
  been 
  

   added, 
  and 
  a 
  few 
  ores 
  of 
  interest, 
  collected 
  in 
  Cornwall, 
  have 
  been 
  received 
  

   from 
  Mr. 
  J. 
  D. 
  Enys, 
  F.G.S. 
  

  

  The 
  collection 
  of 
  New 
  Zealand 
  minerals 
  and 
  ores 
  has 
  been 
  re-an:anged 
  

   and 
  catalogued, 
  and 
  the 
  volcanic 
  and 
  metamorphic 
  rocks 
  are 
  now 
  under- 
  

   going 
  a 
  more 
  thorough 
  chemical 
  and 
  microscopical 
  examination 
  than 
  they 
  

   have 
  hitherto 
  received, 
  while, 
  at 
  the 
  same 
  time, 
  duplicate 
  specimens 
  are 
  

   being 
  selected 
  for 
  exchange. 
  

  

  Falaontolorjy. 
  — 
  The 
  most 
  important 
  collection 
  of 
  foreign 
  fossils 
  added 
  to 
  

   the 
  Museum 
  during 
  the 
  past 
  year, 
  is 
  a 
  series 
  illustrating 
  the 
  carboniferous 
  

   rocks 
  of 
  New 
  South 
  Wales 
  and 
  Tasmania, 
  obtained 
  by 
  the 
  Director 
  during 
  

   a 
  visit 
  to 
  Austraha. 
  This 
  series 
  has 
  proved 
  of 
  great 
  service 
  in 
  comparing 
  

   the 
  equivalent 
  formations 
  in 
  New 
  Zealand. 
  

  

  Geological 
  Survey 
  Collections. 
  — 
  These 
  have 
  been 
  very 
  ample 
  and 
  im- 
  

   portant 
  in 
  their 
  bearing 
  on 
  the 
  geology 
  of 
  the 
  Islands, 
  and 
  especially 
  in 
  

   relation 
  to 
  the 
  Lower 
  Mesozoic 
  rocks, 
  which 
  have, 
  until 
  now, 
  been 
  very 
  

   imperfectly 
  understood. 
  

  

  The 
  chief 
  field-work 
  of 
  the 
  year 
  was 
  the 
  detailed 
  survey 
  of 
  the 
  Hokanui 
  

   range 
  in 
  Southland, 
  which 
  has, 
  for 
  many 
  years, 
  been 
  known 
  to 
  present 
  the 
  

   most 
  typical 
  development 
  of 
  the 
  formations 
  from 
  Jurassic 
  to 
  Permian. 
  

  

  The 
  results 
  obtained 
  are 
  fully 
  detailed 
  in 
  the 
  Geological 
  Eeports 
  for 
  the 
  

   year, 
  but 
  it 
  may 
  be 
  stated 
  here, 
  that 
  the 
  above 
  formations 
  form 
  a 
  strati- 
  

   graphical 
  sequence, 
  but 
  were 
  divided 
  into 
  76 
  well-defined 
  beds, 
  the 
  outcrops 
  

   of 
  which 
  were 
  traced 
  and 
  studied 
  in 
  section, 
  over 
  an 
  area 
  of 
  32 
  square 
  miles. 
  

   The 
  fossils, 
  which 
  number 
  over 
  5,000 
  specimens, 
  were 
  collected 
  from 
  

   tweuty-five 
  distinct 
  horizons, 
  and 
  form 
  a 
  very 
  large 
  and 
  important 
  addition 
  

   to 
  the 
  palseontological 
  data 
  now 
  in 
  the 
  Museum, 
  which 
  are 
  only 
  partially 
  

   arranged 
  and 
  worked 
  out 
  : 
  — 
  

  

  The 
  total 
  thickness 
  of 
  the 
  strata 
  represented 
  in 
  the 
  sections 
  is 
  21,000 
  

   feet, 
  viz. 
  : 
  — 
  

  

  Upper 
  Oolite 
  3,500 
  

  

  Middle 
  Oolite 
  850 
  

  

  Lower 
  Oolite 
  2,200 
  

  

  Lias 
  and 
  Ehfetic 
  ... 
  ... 
  ... 
  ... 
  ... 
  2,000 
  

  

  Permian 
  Triassic 
  ... 
  ... 
  ... 
  ... 
  ... 
  6,400 
  

  

  Permian 
  Carboniferous... 
  ... 
  ... 
  ... 
  ... 
  6,150 
  

  

  The 
  most 
  remarkable 
  feature 
  is 
  the 
  great 
  develojDment 
  of 
  our 
  Infra- 
  

   Triassic 
  Marine 
  formation, 
  characterized 
  by 
  a 
  great 
  profusion 
  of 
  Brachio- 
  

   poda, 
  several 
  of 
  these 
  forms 
  being 
  generically 
  distinct 
  from 
  any 
  hitherto 
  

   described, 
  while 
  there 
  is 
  a 
  total 
  absence 
  of 
  any 
  true 
  Spirifera. 
  It 
  is 
  thus 
  

  

  