﻿30 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  December 
  16th. 
  A 
  clearly 
  marked 
  record 
  of 
  the 
  earthquakes 
  

   that 
  shook 
  the 
  city 
  of 
  Mexico 
  on 
  this 
  date. 
  The 
  phases 
  are 
  well 
  

   differentiated 
  and 
  give 
  a 
  very 
  close 
  approximation 
  of 
  the 
  distance 
  

   to 
  the 
  source, 
  about 
  3000 
  miles. 
  The 
  larger 
  vibrations 
  are 
  exhibited 
  

   on 
  the 
  north-south 
  component. 
  Although 
  the 
  record 
  would 
  indicate 
  

   it 
  to 
  be 
  one 
  of 
  the 
  heaviest 
  shocks 
  of 
  the 
  year, 
  it 
  appears 
  to 
  have 
  

   done 
  little 
  damage. 
  

  

  January 
  31st. 
  A 
  good 
  tracing 
  of 
  the 
  earthquake 
  that 
  was 
  central 
  

   near 
  Valdez, 
  Alaska, 
  when 
  it 
  occurred 
  at 
  about 
  10.12 
  o'clock 
  in 
  

   the 
  morning. 
  The 
  east-west 
  component 
  is 
  the 
  larger. 
  The 
  indicated 
  

   distance 
  to 
  the 
  source 
  is 
  about 
  3000 
  miles. 
  

  

  March 
  nth. 
  The 
  preliminary 
  tremors 
  are 
  not 
  shown 
  on 
  the 
  

   record. 
  The 
  origin 
  appears 
  to 
  have 
  been 
  relatively 
  near, 
  perhaps 
  

   in 
  the 
  West 
  Indies. 
  The 
  Harvard 
  station 
  estimated 
  the 
  distance 
  

   at 
  about 
  1000 
  miles. 
  

  

  May 
  6th. 
  A 
  second 
  Mexican 
  quake, 
  felt 
  in 
  the 
  city 
  of 
  Guada- 
  

   lajara. 
  The 
  record 
  is 
  fairly 
  clear, 
  but 
  less 
  strong 
  than 
  that 
  of 
  

   December 
  16th. 
  The 
  tremors 
  traveled 
  as 
  far 
  as 
  Germany. 
  

  

  May 
  22d. 
  The 
  record 
  of 
  a 
  long-distance 
  microseism 
  with 
  a 
  period 
  

   of 
  from 
  20 
  to 
  30 
  seconds. 
  It 
  is 
  not 
  clearly 
  separated 
  into 
  phases. 
  

   An 
  earthquake 
  was 
  reported 
  from 
  the 
  Hawaiian 
  islands 
  on 
  this 
  date. 
  

  

  June 
  Jth. 
  A 
  series 
  of 
  probably 
  related 
  disturbances 
  from 
  a 
  

   source 
  between 
  3000 
  and 
  4000 
  miles 
  away, 
  but 
  not 
  definitely 
  located. 
  

   A 
  volcanic 
  outburst 
  occurred 
  in 
  the 
  Alaskan 
  peninsula 
  about 
  this 
  

   time. 
  

  

  June 
  8th. 
  This 
  probably 
  marks 
  the 
  culmination 
  of 
  the 
  series 
  of 
  

   shocks 
  which 
  began 
  the 
  preceding 
  day. 
  Besides 
  the 
  heavy 
  disturb- 
  

   ance, 
  there 
  were 
  light 
  tremors 
  at 
  intervals 
  which 
  were 
  so 
  broken 
  up 
  

   by 
  interference 
  as 
  to 
  permit 
  no 
  satisfactory 
  readings. 
  The 
  more 
  

   notable 
  of 
  these 
  minor 
  movements 
  occurred 
  between 
  4.10 
  and 
  4.30 
  

   a. 
  m., 
  5.22 
  and 
  5.33 
  a. 
  m., 
  and 
  7.55 
  and 
  8.45 
  a. 
  m. 
  

  

  June 
  10th. 
  An 
  untraced 
  disturbance 
  about 
  3500 
  miles 
  away. 
  

  

  June 
  12th. 
  Very 
  faint 
  record, 
  apparently 
  not 
  connected 
  with 
  the 
  

   tremors, 
  felt 
  in 
  South 
  Carolina 
  and 
  Georgia 
  the 
  same 
  morning. 
  

  

  July 
  8th. 
  A 
  rather 
  strong 
  disturbance 
  with 
  the 
  east-west 
  wave 
  

   motion 
  more 
  pronounced 
  than 
  the 
  north-south. 
  The 
  estimated 
  dis- 
  

   tance 
  of 
  the 
  source 
  is 
  about 
  4000 
  miles. 
  A 
  heavy 
  shock 
  occurred 
  at 
  

   Fairbanks, 
  Alaska, 
  about 
  this 
  time. 
  

  

  PALEONTOLOGY 
  

   In 
  the 
  reports 
  of 
  several 
  years 
  past, 
  reference 
  has 
  been 
  made 
  

   to 
  the 
  progress 
  of 
  a 
  memoir 
  on 
  the 
  fossil 
  arachnids 
  or 
  Eurypterida 
  

  

  