﻿REPORT 
  OF 
  THE 
  DIRECTOR 
  igi2 
  

  

  29 
  

  

  vicinity, 
  particularly 
  with 
  respect 
  to 
  the 
  heavy 
  mantle 
  of 
  glacial 
  

   sands 
  and 
  clays 
  which 
  cover 
  the 
  bedrock, 
  are 
  not 
  incompatible 
  with 
  

   such 
  service. 
  The 
  instruments 
  belong 
  to 
  the 
  lighter 
  pattern 
  of 
  the 
  

   horizontal 
  pendulums 
  and 
  are 
  not 
  capable 
  of 
  a 
  magnifying 
  ratio 
  

   of 
  more 
  than 
  ten 
  to 
  one 
  in 
  the 
  average 
  run. 
  They 
  possess, 
  how- 
  

   ever, 
  the 
  requisite 
  sensitiveness 
  < 
  for 
  recording 
  legibly 
  the 
  tremors 
  of 
  

   all 
  heavy 
  or 
  damaging 
  quakes 
  throughout 
  the 
  seismic 
  zones 
  of 
  this 
  

   and 
  other 
  countries. 
  There 
  are 
  in 
  the 
  local 
  files 
  tracings 
  from 
  such 
  

   widely 
  separated 
  origins 
  as 
  California, 
  Valparaiso, 
  Kingston, 
  the 
  

   Himalayan 
  region, 
  Turkestan, 
  Messina, 
  Mexico, 
  Costa 
  Rica, 
  Ice- 
  

   land, 
  northern 
  Alaska 
  and 
  Turkey" 
  in 
  Europe. 
  The 
  smaller 
  distant 
  

   quakes, 
  as 
  well 
  as 
  the 
  very 
  slight 
  jars 
  from 
  nearby 
  sources, 
  appear 
  

   to 
  be 
  beyond 
  the 
  capacity 
  of 
  the 
  instruments 
  to 
  register. 
  

  

  The 
  general 
  care 
  of 
  the 
  instruments 
  during 
  the 
  year 
  has 
  been 
  

   assumed 
  by 
  Mr 
  R. 
  W. 
  Jones. 
  With 
  their 
  increasing 
  age, 
  they 
  have 
  

   required 
  more 
  attention 
  to 
  maintain 
  them 
  in 
  working 
  order, 
  espe- 
  

   cially 
  on 
  account 
  of 
  their 
  liability 
  to 
  rust. 
  The 
  station 
  is 
  very 
  damp 
  

   during 
  the 
  summer 
  months 
  and 
  then 
  they 
  have 
  to 
  be 
  frequently 
  

   dismantled 
  and 
  thoroughly 
  cleaned. 
  As 
  yet, 
  no 
  provision 
  has 
  been 
  

   made 
  for 
  their 
  removal 
  to 
  new 
  quarters, 
  and 
  their 
  maintenance 
  in 
  

   their 
  present 
  place 
  will 
  entail 
  added 
  labor 
  for 
  the 
  future. 
  In 
  case 
  a 
  

   new 
  station 
  should 
  be 
  equipped 
  near 
  the 
  present 
  location 
  of 
  the 
  

   Museum, 
  it 
  would 
  appear 
  advisable 
  to 
  instal 
  one 
  of 
  the 
  newer 
  

   types 
  of 
  seismographs 
  for 
  registration 
  of 
  the 
  smaller 
  quakes, 
  along 
  

   with 
  the 
  present 
  instruments 
  which 
  are 
  well 
  adapted 
  to 
  the 
  registra- 
  

   tion 
  of 
  macroseisms. 
  

  

  RECORD 
  OF 
  EARTHQUAKES 
  AT 
  ALBANY 
  STATION, 
  OCTOBER 
  I, 
  

   SEPTEMBER 
  30, 
  10,12 
  

  

  Standard 
  time 
  

  

  IQII 
  TO 
  

  

  DATE 
  

  

  Beginning 
  

   preliminaries 
  

  

  Beginning 
  

  

  principal 
  

  

  part 
  

  

  Maximum 
  

  

  End 
  

  

  Maxi- 
  

   mum 
  

  

  ampli- 
  

   tude 
  

  

  I9II 
  

  

  December 
  16 
  

  

  1912 
  

  

  January 
  31 
  

  

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  M 
  

  

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  20§ 
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  M. 
  

  

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  P. 
  M. 
  

  

  |H 
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  mm 
  

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  May 
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  June 
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  i 
  

  

  June 
  7 
  

  

  

  

  

  June 
  8 
  

  

  June 
  10 
  

  

  June 
  12 
  

  

  July 
  8 
  

  

  3 
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  A. 
  M. 
  

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  A. 
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