﻿Geology 
  and 
  Mineralogy, 
  489 
  

  

  South 
  of 
  that 
  river, 
  at 
  Dog 
  Head, 
  specimens 
  of 
  Orthoceratites 
  " 
  

   (probably 
  of 
  Endoceras 
  s 
  ub 
  annul 
  'at 
  um) 
  , 
  four 
  feet 
  and 
  a 
  half 
  or 
  

   even 
  six 
  feet 
  in 
  leDgth, 
  and 
  imperfect 
  at 
  both 
  ends, 
  were 
  observed 
  

   by 
  Mr. 
  Lambe 
  in 
  1890. 
  A 
  siphnncle 
  of 
  Endoceras 
  crassisipho- 
  

   natum. 
  which 
  is 
  also 
  imperfect 
  at 
  both 
  ends, 
  is 
  nearly 
  three 
  feet 
  

   long. 
  A 
  specimeD, 
  which 
  appears 
  to 
  be 
  a 
  cast 
  of 
  the 
  anterior 
  

   end 
  of 
  the 
  body 
  chamber 
  of 
  a 
  specimen 
  of 
  a 
  Poterioceras 
  (prob- 
  

   ably 
  P. 
  ?iobile), 
  recently 
  collected 
  by 
  D. 
  B. 
  Dowling 
  and 
  L. 
  M. 
  

   Lambe 
  at 
  Berens 
  Island, 
  and 
  showing 
  the 
  infolding 
  of 
  the 
  lip, 
  is 
  

   seven 
  inches 
  across. 
  Rough 
  casts 
  of 
  the 
  interior 
  of 
  spirally 
  coiled 
  

   discoidal 
  or 
  nearly 
  discoidal 
  shells, 
  apparently 
  allied 
  to 
  JBarran- 
  

   deoceras, 
  from 
  several 
  localities 
  on 
  the 
  west 
  shore 
  of 
  Lake 
  Win- 
  

   nipeg, 
  are 
  nearly 
  or 
  quite 
  two 
  feet 
  across. 
  Lastly, 
  a 
  free 
  cheek 
  

   of 
  a 
  trilobite, 
  Asajihus 
  (Jsotelus) 
  f/igas, 
  from 
  Cat 
  Head, 
  indicates 
  

   a 
  specimen 
  that 
  must 
  have 
  been 
  twenty 
  inches 
  in 
  length 
  when 
  

   alive; 
  and 
  other 
  similar 
  examples 
  could 
  be 
  given.'' 
  

  

  3. 
  A 
  guide 
  to 
  the 
  fossil 
  invertebrates 
  and 
  plants 
  in 
  the 
  depart- 
  

   ment 
  of 
  geology 
  and 
  paleontology 
  in 
  the 
  British 
  Museum 
  {Nat- 
  

   ural 
  History) 
  ; 
  pp. 
  1-158, 
  figs. 
  1-182, 
  1897. 
  — 
  This 
  guide, 
  though 
  

   of 
  local 
  value, 
  primarily, 
  is 
  an 
  admirable 
  presentation 
  of 
  the 
  most 
  

   conspicuous 
  features 
  of 
  fossil 
  invertebrates, 
  and 
  the 
  diagram- 
  

   matic 
  figures 
  are 
  selected 
  with 
  a 
  view 
  to 
  make 
  clear 
  the 
  distinc- 
  

   tive 
  characters 
  of 
  the 
  several 
  types 
  of 
  organisms, 
  so 
  as 
  to 
  be 
  use- 
  

   ful 
  to 
  one 
  examining 
  any 
  well-equipped 
  museum. 
  

  

  4. 
  The 
  sea 
  mills 
  of 
  Cephalonia 
  ; 
  by 
  F. 
  W. 
  Ceosby 
  and 
  W. 
  O. 
  

   Ceosbt; 
  "Technology 
  Quarterly," 
  vol. 
  ix, 
  no. 
  1, 
  pp. 
  6-23. 
  The 
  

   authors 
  give 
  a 
  geologist's 
  account 
  of 
  the 
  famous 
  sea 
  mills 
  near 
  

   Argostoli, 
  based 
  upon 
  personal 
  examination. 
  They 
  associate 
  the 
  

   disposal 
  of 
  the 
  downward-flowing 
  waters 
  with 
  the 
  formation 
  

   of 
  extensive 
  and 
  deep-seated 
  fissures 
  by 
  earthquake, 
  the 
  return 
  

   exit 
  of 
  which 
  is 
  supposed 
  to 
  appear 
  in 
  the 
  numerous 
  thermal 
  

   springs 
  of 
  the 
  region. 
  

  

  5. 
  Geologischer 
  Wegweiser 
  durch 
  das 
  Dresdner 
  Elbthalgebiet 
  

   zicischen 
  Meissen 
  und 
  Tetschen 
  y 
  von 
  Dr. 
  R. 
  Beck; 
  pp. 
  1-162 
  and 
  

   maps. 
  (Gebriider 
  Borntraeger) 
  Berlin, 
  1897. 
  — 
  This 
  is 
  a 
  handy 
  

   pocket 
  guide 
  for 
  geologists 
  or 
  mineralogists 
  who 
  may 
  be 
  spending 
  

   the 
  summer 
  in 
  the 
  neighborhood 
  of 
  Dresden. 
  

  

  6. 
  Laicsonite. 
  — 
  The 
  new 
  species 
  lawsonite, 
  described 
  in 
  1895 
  

   by 
  Ransome 
  from 
  Tiburon, 
  Marin 
  Co., 
  California, 
  has 
  recently 
  

   been 
  identified 
  by 
  Franchi 
  and 
  Stella 
  in 
  the 
  metamorphic 
  rocks 
  

   of 
  the 
  Piedmont 
  Alps. 
  It 
  was 
  first 
  observed 
  in 
  an 
  altered 
  diabase 
  

   near 
  Elva 
  in 
  the 
  Val 
  Maira 
  and 
  since 
  then 
  it 
  has 
  been 
  found 
  to 
  

   occur 
  not 
  infrequently 
  in 
  veinlets 
  in 
  a 
  sodic 
  amphibolite 
  from 
  the 
  

   valley 
  of 
  Chiauale. 
  Its 
  origin 
  is 
  regarded 
  as 
  similar 
  to 
  that 
  of 
  

   the 
  epidote 
  and 
  zoisite 
  common 
  in 
  the 
  greenstones 
  of 
  the 
  Alps. 
  — 
  

   Bull. 
  Soc. 
  Jlin., 
  xx, 
  5. 
  

  

  7. 
  A 
  preliminary 
  report 
  on 
  the 
  Corundum 
  deposits 
  of 
  Georgia. 
  

   — 
  The 
  administrative 
  report 
  of 
  the 
  State 
  Geologist 
  of 
  Georgia, 
  

   Mr. 
  W. 
  S. 
  Teates, 
  was 
  issued 
  not 
  long 
  since, 
  and 
  with 
  this 
  were 
  

   distributed 
  Bulletin 
  No. 
  1, 
  a 
  Preliminary 
  Report 
  on 
  the 
  Marbles 
  

  

  