﻿FOURTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  I907 
  69 
  

  

  which 
  appears 
  from 
  the 
  records 
  preserved 
  in 
  contemporary 
  docu- 
  

   ments 
  to 
  be 
  the 
  severest 
  disturbance 
  this 
  continent 
  has 
  ever 
  suffered 
  

   from 
  terrestrial 
  dislocations. 
  This 
  earthquake 
  was 
  evidently 
  a 
  

   movement 
  of 
  the 
  Paleozoics 
  against 
  the 
  crystalline 
  shield 
  along 
  

   the 
  course 
  of 
  the 
  St 
  Lawrence 
  river 
  or 
  the 
  St 
  Lawrence 
  fault, 
  and 
  

   its 
  destructive 
  effects 
  from 
  Montreal 
  down 
  to 
  Tadousac 
  were 
  tre- 
  

   mendous. 
  It 
  seemed 
  to 
  the 
  speaker 
  quite 
  reasonable 
  to 
  infer 
  that 
  

   this 
  displacement 
  must 
  have 
  been 
  continued 
  along 
  the 
  contact 
  line 
  

   of 
  the 
  Paleozoics 
  and 
  the 
  crystallines 
  in 
  the 
  direction 
  of 
  the 
  Cham- 
  

   plain 
  fault, 
  although 
  the 
  historic 
  records 
  for 
  this 
  region 
  are 
  very 
  

   meager. 
  

  

  After 
  lunch 
  the 
  party 
  divided, 
  one 
  portion 
  spending 
  the 
  afternoon 
  

   on 
  the 
  shores 
  of 
  Valcour 
  island 
  studying 
  stratigraphy 
  and 
  paleon- 
  

   tology. 
  The 
  others 
  sailed 
  southward 
  to 
  the 
  delta 
  of 
  Ausable 
  river, 
  

   where 
  a 
  landing 
  was 
  made 
  and 
  photographs 
  taken 
  showing 
  some 
  

   of 
  the 
  recent 
  shore-line 
  changes. 
  Thence 
  this 
  party 
  sailed 
  across 
  

   the 
  lake 
  between 
  Stave 
  and 
  Providence 
  islands, 
  and 
  then 
  northward 
  

   along 
  the 
  Vermont 
  shore, 
  returning 
  to 
  Cliff 
  Haven. 
  

  

  In 
  the 
  evening 
  in 
  the 
  auditorium 
  of 
  the 
  Catholic 
  Summer 
  School 
  

   the 
  one 
  formal 
  gathering 
  of 
  the 
  Plattsburg 
  meeting 
  took 
  place. 
  The 
  

   Rev. 
  John 
  Talbot 
  Smith 
  LL.D., 
  president 
  of 
  the 
  summer 
  school, 
  

   welcomed 
  the 
  geologists 
  in 
  the 
  name 
  of 
  the 
  authorities 
  of 
  Champlain 
  

   Assembly 
  and 
  introduced 
  the 
  vice 
  president 
  of 
  Section 
  E, 
  Dr 
  Alfred 
  

   C. 
  Lane, 
  who 
  gave 
  his 
  vice 
  presidential 
  address 
  on 
  the 
  " 
  Early 
  Sur- 
  

   roundings 
  of 
  Life." 
  

  

  Prof. 
  B. 
  K. 
  Emerson 
  thanked 
  the 
  authorities 
  of 
  the 
  Champlain 
  

   Assembly 
  for 
  their 
  hospitable 
  reception 
  of 
  Section 
  E. 
  

  

  On 
  Sunday 
  various 
  features 
  of 
  the 
  local 
  geology 
  were 
  visited 
  by 
  

   members 
  of 
  the 
  section. 
  Others 
  attended 
  services 
  at 
  the 
  chapel 
  on 
  

   the 
  grounds. 
  ' 
  

  

  At 
  noon 
  the 
  party 
  were 
  entertained 
  most 
  delightfully 
  by 
  the 
  Hon. 
  

   Smith 
  M. 
  Weed 
  and 
  his 
  family 
  at 
  his 
  summer 
  home 
  on 
  the 
  shores 
  

   of 
  Lake 
  Champlain. 
  In 
  the 
  afternoon 
  another 
  sail 
  was 
  taken 
  in 
  

   a 
  steam 
  launch 
  on 
  Lake 
  Champlain. 
  

  

  In 
  the 
  evening 
  Prof. 
  George 
  H. 
  Hudson, 
  of 
  the 
  Plattsburg 
  Normal 
  

   School, 
  rhowed 
  the 
  laboratories 
  and 
  some 
  of 
  the 
  work 
  of 
  his 
  stu- 
  

   dents. 
  The 
  members 
  then 
  met 
  in 
  the 
  science 
  classroom, 
  and 
  listened 
  

   to 
  an 
  informal 
  talk 
  by 
  Professor 
  Hudson 
  on 
  " 
  Blastoidocrinus 
  and 
  

   its 
  Type," 
  illustrated 
  by 
  50 
  lantern 
  slides. 
  The 
  slides 
  of 
  Billings's 
  

   type 
  were 
  from 
  negatives 
  possessing 
  an 
  amplification 
  of 
  10 
  diam- 
  

   eters, 
  and 
  showed 
  in 
  a 
  remarkable 
  manner 
  many 
  points 
  of 
  structure 
  

  

  