﻿36 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  over 
  a 
  considerable 
  period 
  to 
  form 
  a 
  basis 
  for 
  the 
  study 
  of 
  these 
  

   movements. 
  

  

  The 
  importance 
  of 
  seismological 
  investigations 
  is 
  rapidly 
  gaining 
  

   recognition 
  in 
  this 
  country; 
  stations 
  are 
  now 
  planned 
  or 
  under 
  

   installation 
  at 
  Cambridge, 
  Mass., 
  New 
  Haven, 
  Conn., 
  and 
  Ann 
  

   Arbor, 
  Mich., 
  as 
  part 
  of 
  the 
  scientific 
  equipment 
  of 
  the 
  several 
  uni- 
  

   versities 
  at 
  those 
  places. 
  In 
  the 
  near 
  future 
  there 
  will 
  thus 
  be 
  a 
  

   series 
  of 
  stations 
  covering 
  the 
  northeastern 
  section 
  of 
  the 
  country 
  

   quite 
  completely, 
  as 
  observations 
  are 
  now 
  made 
  also 
  at 
  Cheltenham 
  

   and 
  Baltimore, 
  Md., 
  and 
  Washington, 
  D. 
  C. 
  It 
  may 
  be 
  suggested 
  

   that 
  the 
  work 
  might 
  be 
  materially 
  advanced 
  by 
  coordination 
  of 
  the 
  

   different 
  observing 
  points, 
  and 
  it 
  is 
  hoped 
  that 
  some 
  arrangement 
  

   of 
  the 
  kind 
  will 
  be 
  effected. 
  In 
  this 
  manner 
  the 
  detection 
  of 
  the 
  

   small 
  local 
  movements 
  which 
  are 
  apt 
  to 
  be 
  confused 
  with 
  the 
  feebler 
  

   tremors 
  of 
  distant 
  origin 
  would 
  be 
  specially 
  facilitated. 
  

  

  The 
  Albany 
  station 
  has 
  been 
  called 
  upon 
  frequently 
  to 
  supply 
  

   information 
  regarding 
  earthquake 
  occurrences, 
  both 
  for 
  the 
  press 
  

   and 
  for 
  scientific 
  purposes. 
  Records 
  have 
  been 
  available 
  some 
  times 
  

   long 
  before 
  the 
  arrival 
  of 
  telegraphic 
  dispatches 
  from 
  the 
  centers 
  

   of 
  disturbance. 
  It 
  has 
  also 
  been 
  possible 
  to 
  demonstrate 
  the 
  non- 
  

   existence 
  of 
  many 
  reported 
  shocks 
  in 
  the 
  neighboring 
  region. 
  The 
  

   observations 
  relating 
  to 
  the 
  San 
  Francisco 
  and 
  Valparaiso 
  earth- 
  

   quakes 
  have 
  been 
  supplied 
  to 
  the 
  California 
  Earthquake 
  Commis- 
  

   sion 
  and 
  the 
  International 
  Seismological 
  Association 
  for 
  use 
  in 
  the 
  

   preparation 
  of 
  their 
  reports. 
  

  

  The 
  year 
  just 
  ended 
  was 
  the 
  first 
  for 
  which 
  a 
  complete 
  series 
  of 
  

   records 
  has 
  been 
  obtained. 
  In 
  all, 
  19 
  disturbances, 
  large 
  and 
  small, 
  

   were 
  registered. 
  A 
  tabulation 
  of 
  the 
  data 
  is 
  given 
  herewith, 
  ac- 
  

   companied 
  by 
  notes 
  explanatory 
  of 
  the 
  individual 
  occurrences. 
  

   Similar 
  information 
  covering 
  the 
  period 
  March 
  10 
  to 
  October 
  1, 
  

   1906, 
  was 
  included 
  in 
  the 
  report 
  for 
  that 
  year. 
  

  

  The 
  character 
  of 
  the 
  records 
  traced 
  by 
  the 
  instruments 
  differs 
  

   in 
  each 
  case, 
  and 
  it 
  is 
  not 
  possible 
  to 
  give 
  all 
  the 
  elements 
  for 
  every 
  

   disturbance. 
  Some 
  of 
  the 
  more 
  remote 
  shocks 
  which 
  are 
  apparently 
  

   of 
  relatively 
  small 
  proportion 
  cause 
  only 
  feeble 
  vibrations 
  indicated 
  

   by 
  a 
  slightly 
  wavy 
  line 
  as 
  traced 
  on 
  the 
  recording 
  cylinder. 
  The 
  

   record 
  of 
  larger 
  earthquakes, 
  on 
  the 
  other 
  hand, 
  is 
  usually 
  resolvable 
  

   into 
  several 
  portions 
  of 
  distinctive 
  character 
  from 
  which 
  deductions 
  

   may 
  be 
  made, 
  according 
  to 
  well 
  known 
  principles, 
  as 
  to 
  the 
  distance 
  

   traveled 
  by 
  the 
  waves, 
  and 
  the 
  direction 
  and 
  relative 
  magnitude 
  of 
  

   the 
  disturbance. 
  

  

  