﻿Geology. 
  343 
  

  

  ences 
  promises 
  to 
  give 
  an 
  insight 
  into 
  the 
  relation 
  between 
  the 
  

   character 
  of 
  the 
  light 
  and 
  the 
  distribution 
  of 
  light 
  in 
  its 
  spectral 
  

   lines. 
  — 
  Ann. 
  der 
  Fhysik 
  und 
  Chemie, 
  pp. 
  790-807, 
  no. 
  8, 
  1891. 
  

  

  J. 
  T. 
  

  

  11. 
  Thought 
  transference. 
  — 
  Professor 
  Lodge, 
  President 
  of 
  the 
  

   section 
  of 
  Mathematics 
  and 
  Physics 
  at 
  the 
  late 
  meeting 
  of 
  the 
  

   British 
  Association, 
  used 
  the 
  following 
  language 
  : 
  "May 
  there 
  

   not 
  also 
  be 
  an 
  immaterial 
  (perhaps 
  an 
  etherial) 
  medium 
  of 
  com- 
  

   munication 
  ? 
  Is 
  it 
  possible 
  that 
  an 
  idea 
  can 
  be 
  transferred 
  from 
  

   one 
  person 
  to 
  another 
  by 
  a 
  process 
  such 
  as 
  we 
  have 
  not 
  yet 
  grown 
  

   accustomed 
  to, 
  and 
  know 
  practically 
  nothing 
  about? 
  In 
  this 
  

   case 
  I 
  have 
  evidence. 
  I 
  assert 
  that 
  I 
  have 
  seen 
  it 
  done 
  and 
  am 
  

   perfectly 
  convinced 
  of 
  the 
  fact." 
  — 
  Nature, 
  Aug. 
  20, 
  1891, 
  p. 
  386. 
  

  

  J. 
  T. 
  

  

  II. 
  Geology. 
  

  

  1. 
  Fifth 
  Triennial 
  Meeting 
  of 
  the 
  International 
  Congress 
  of 
  

   Geologists. 
  — 
  The 
  International 
  Congress 
  commenced 
  its 
  sessions 
  

   at 
  Washington, 
  on 
  Wednesday, 
  the- 
  26th 
  of 
  August. 
  The 
  meet- 
  

   ing 
  was 
  called 
  to 
  order 
  by 
  Prof. 
  T. 
  McKenney 
  Hughes, 
  of 
  Cam- 
  

   bridge, 
  England. 
  After 
  the 
  election 
  of 
  officers, 
  in 
  which 
  Dr. 
  J. 
  

   S, 
  Newberry 
  was 
  chosen 
  President, 
  the 
  chair, 
  in 
  the 
  absence 
  of 
  

   Dr. 
  Newberry, 
  was 
  taken 
  by 
  Prof. 
  Joseph 
  LeConte, 
  one 
  of 
  the 
  

   Vice-Presidents. 
  The 
  principal 
  subjects 
  discussed 
  during 
  the 
  

   sessions 
  are 
  the 
  following 
  : 
  The 
  Ice-period 
  in 
  America 
  and 
  north- 
  

   ern 
  Europe 
  and 
  the 
  classification 
  of 
  pleistocene 
  formations, 
  which 
  

   was 
  opened 
  by 
  President 
  T. 
  C. 
  Chamberlin 
  and 
  occupied 
  Thurs- 
  

   day 
  ; 
  the 
  Correlation 
  of 
  European 
  and 
  American 
  geological 
  for- 
  

   mations, 
  opened 
  by 
  Prof. 
  G. 
  K. 
  Gilbert, 
  occupying 
  Friday 
  ; 
  the 
  

   Graphic 
  system 
  used 
  in 
  geological 
  work, 
  opened 
  by 
  Major 
  Powell, 
  

   on 
  the 
  forenoon 
  of 
  Monday. 
  The 
  afternoon 
  of 
  that 
  day 
  was 
  

   given 
  up 
  to 
  discussions 
  relating 
  to 
  the 
  geology 
  of 
  the 
  regions 
  to 
  

   be 
  visited 
  by 
  the 
  Western 
  excursion. 
  

  

  On 
  the 
  subject 
  of 
  Correlation, 
  the 
  value 
  of 
  the 
  effects 
  of 
  physi- 
  

   cal 
  events 
  or 
  conditions 
  and 
  of 
  relations 
  in 
  flora, 
  in 
  fauna, 
  in 
  In- 
  

   vertebrate 
  species 
  and 
  Vertebrate 
  species 
  was 
  variously 
  discussed. 
  

   The 
  weight 
  of 
  opinion 
  appeared 
  to 
  favor 
  the 
  view 
  that 
  Verte- 
  

   brate 
  species, 
  when 
  present, 
  afforded 
  the 
  best 
  evidence 
  as 
  to 
  

   chronological 
  relations. 
  Prof. 
  Zittel 
  gave 
  the 
  highest 
  place 
  to 
  

   Vertebrates. 
  An 
  abstract 
  of 
  Prof. 
  Marsh's 
  remarks 
  is 
  contained 
  

   in 
  the 
  paper 
  on 
  page 
  336. 
  

  

  The 
  next 
  meeting 
  of 
  the 
  Congress, 
  or 
  that 
  of 
  1894, 
  will 
  be 
  held 
  

   in 
  Switzerland, 
  probably 
  at 
  Berne 
  ; 
  and, 
  on 
  special 
  invitation 
  re- 
  

   ceived 
  from 
  the 
  Geological 
  Survey 
  of 
  Russia, 
  the 
  following, 
  in 
  

   1897, 
  will 
  probably 
  be 
  held 
  in 
  St. 
  Petersburg. 
  

  

  The 
  party 
  for 
  the 
  excursion 
  to 
  the 
  Yellowstone 
  Park, 
  Colorado, 
  

   etc., 
  included 
  about 
  eighty 
  members 
  of 
  the 
  Congress, 
  of 
  which 
  

   more 
  than 
  half 
  were 
  those 
  from 
  abroad. 
  The 
  following 
  ladies 
  

   were 
  of 
  the 
  number 
  : 
  Miss 
  Mary 
  Forster 
  of 
  London, 
  Mrs. 
  Mary 
  

  

  