﻿Geology 
  and 
  Mineralogy. 
  655 
  

  

  Southern 
  Brazil 
  and 
  the 
  Falkland 
  Islands" 
  (pis. 
  1-35), 
  by 
  J. 
  M. 
  

   Clarke. 
  c. 
  s. 
  

  

  6. 
  JVeio 
  Trilobites 
  from 
  the 
  Maquoketa 
  Beds 
  of 
  Fayette 
  Comity, 
  

   Iowa; 
  by 
  Arthur 
  Ware 
  Sloctjm. 
  Field 
  Mus. 
  Nat. 
  Hist., 
  Geol. 
  

   Ser., 
  IY,No. 
  3, 
  pp. 
  43-83, 
  pis. 
  xiii-xviii, 
  1913. 
  — 
  The 
  author 
  has 
  

   secured 
  from 
  these 
  beds 
  the 
  large 
  number 
  of 
  20 
  species 
  of 
  Rich- 
  

   mondian 
  trilobites, 
  IV 
  of 
  which 
  are 
  here 
  named, 
  11 
  of 
  them 
  

   being 
  new. 
  The 
  new 
  genus 
  Cybeloides 
  is 
  also 
  defined. 
  c. 
  s. 
  

  

  7. 
  A 
  new 
  Paleontologic 
  Periodical 
  — 
  Palaeontologische 
  Zeit- 
  

   schrift, 
  Bd. 
  I, 
  Heft 
  I, 
  June, 
  1913. 
  — 
  This 
  is 
  the 
  first 
  number 
  of 
  

   the 
  organ 
  of 
  the 
  Palaeontologische 
  Gesellschaft 
  of 
  Germany, 
  

   with 
  Professor 
  Jaekel 
  as 
  editor. 
  Three 
  parts 
  will 
  appear 
  during 
  

   the 
  year 
  and 
  will 
  be 
  sent 
  free 
  to 
  the 
  members 
  of 
  the 
  Society 
  ; 
  

   otherwise 
  the 
  price 
  is 
  25 
  marks 
  per 
  volume. 
  All 
  manuscripts, 
  

   which 
  may 
  be 
  in 
  German, 
  French, 
  or 
  English, 
  are 
  to 
  be 
  sent 
  to 
  

   the 
  editor, 
  and 
  subscriptions 
  to 
  the 
  publishers, 
  Gebrtider 
  Born- 
  

   traeger, 
  W. 
  35 
  Schoneberger 
  Ufer 
  12a, 
  Berlin. 
  

  

  The 
  first 
  paper 
  in 
  this 
  number 
  is 
  by 
  the 
  editor, 
  " 
  Wege 
  und 
  

   Ziele 
  der 
  Palaeontologie,"in 
  which 
  it 
  is 
  said 
  that 
  " 
  the 
  Americans 
  

   will 
  soon 
  harvest 
  the 
  fruits 
  of 
  the 
  endeavor 
  of 
  the 
  European 
  

   workers 
  of 
  the 
  past 
  century, 
  and 
  further 
  the 
  progress 
  of 
  our 
  

   science 
  along 
  its 
  foremost 
  lines." 
  Of 
  other 
  papers 
  there 
  are 
  

   " 
  Barroisia 
  und 
  die 
  Pharetronenfrage," 
  by 
  H. 
  Rauff 
  (pages 
  

   74-144); 
  "Uber 
  die 
  palaeontologische 
  Bedeutung 
  des 
  Massen- 
  

   sterbens 
  unter 
  den 
  Tieren," 
  by 
  C. 
  Wiman 
  (pages 
  145-154) 
  ; 
  and 
  

   another 
  paper 
  by 
  Jaekel, 
  " 
  Uber 
  die 
  Wirbeltierfunde 
  in 
  der 
  

   oberen 
  Trias 
  von 
  Halberstadt," 
  which 
  is 
  a 
  partial 
  account 
  of 
  the 
  

   finding 
  of 
  thirty-five 
  dinosaurs 
  and 
  other 
  vertebrates, 
  and 
  which 
  

   will 
  be 
  continued 
  in 
  the 
  next 
  number. 
  

  

  The 
  Society, 
  which 
  already 
  has 
  130 
  German 
  and 
  80 
  foreign 
  

   members, 
  is 
  to 
  be 
  congratulated 
  on 
  its 
  first 
  printed 
  product. 
  

  

  c. 
  s. 
  

  

  8. 
  Petrology 
  of 
  the 
  alkali- 
  granites 
  and 
  porphyries 
  of 
  Quincy 
  

   and 
  the 
  Blue 
  Hills, 
  Mass. 
  ; 
  by 
  Chas. 
  H. 
  Warren. 
  Proc. 
  Amer. 
  

   Acad. 
  Arts 
  and 
  Sci., 
  vol. 
  xlix, 
  No. 
  5, 
  Sept., 
  1913, 
  pp. 
  203-330. 
  — 
  

   While 
  much 
  work 
  has 
  been 
  done 
  on 
  the 
  geology 
  of 
  the 
  Boston 
  

   basin, 
  none 
  more 
  careful, 
  detailed 
  and 
  thorough 
  on 
  any 
  part 
  of 
  

   the 
  area, 
  than 
  the 
  one 
  here 
  noticed, 
  has 
  yet 
  been 
  attempted. 
  The 
  

   alkalic 
  rocks 
  of 
  this 
  region 
  are 
  well 
  known 
  and 
  the 
  complete 
  

   investigation 
  of 
  this 
  part 
  of 
  them 
  by 
  Professor 
  Warren 
  affords 
  

   results 
  which 
  are 
  of 
  interest 
  and 
  importance 
  to 
  all 
  penologists. 
  

   The 
  field 
  studies 
  show 
  that 
  the 
  rocks 
  are 
  parts 
  of 
  a 
  complex 
  pro- 
  

   duced 
  by 
  small 
  batholithic 
  invasion 
  whose 
  method 
  of 
  intrusion 
  is 
  

   believed 
  to 
  have 
  occurred 
  through 
  stoping. 
  The 
  upper 
  portion 
  

   solidified 
  as 
  vitreous 
  rocks, 
  which 
  give 
  place 
  below 
  to 
  porphy- 
  

   ries, 
  while 
  at 
  considerably 
  lower 
  depths 
  granite 
  was 
  produced. 
  

   The 
  varied 
  relations 
  of 
  these 
  rocks 
  are 
  treated 
  and 
  their 
  petrog- 
  

   raphy, 
  accompanied 
  by 
  chemical 
  analyses, 
  has 
  been 
  worked 
  out 
  

   in 
  detail. 
  Modern 
  views 
  of 
  physical 
  chemistry 
  are 
  invoked 
  to 
  

   explain 
  the 
  different 
  textures 
  and 
  mineral 
  constituents 
  met 
  with. 
  

  

  