﻿Dr. 
  van 
  Rijckevorsel 
  on 
  the 
  Temperature 
  of 
  Europe. 
  465 
  

  

  they 
  may 
  be 
  owing 
  to, 
  did 
  not 
  exist. 
  I 
  have 
  not 
  yet 
  been 
  

   able 
  to 
  go 
  far 
  enough 
  into 
  the 
  subject, 
  of 
  which 
  I 
  give 
  the 
  

   first 
  results. 
  

  

  But 
  I 
  think 
  a 
  question 
  like 
  this 
  — 
  and 
  there 
  are 
  others 
  of 
  

   the 
  same 
  character 
  — 
  points 
  to 
  a 
  more 
  extensive 
  use 
  of 
  our 
  

   curves. 
  Suppose 
  such 
  curves 
  to 
  be 
  constructed 
  for 
  our 
  

   whole 
  hemisphere 
  in 
  sufficient 
  number. 
  It 
  is 
  not 
  quite 
  

   impossible 
  that 
  we 
  should 
  find 
  then 
  that 
  some 
  of 
  the 
  anomalies 
  

   of 
  my 
  curves 
  are 
  not 
  confined 
  to 
  Europe 
  only. 
  I 
  call 
  your 
  

   attention 
  here 
  to 
  the 
  fall 
  in 
  the 
  temperature 
  in 
  the 
  first 
  half 
  

   of 
  June. 
  On 
  this 
  diagram 
  it 
  is 
  very 
  sensible 
  for 
  Valentia, 
  less 
  

   so 
  for 
  the 
  other 
  stations. 
  This 
  is 
  a 
  most 
  tenacious 
  anomaly, 
  

   which, 
  although 
  inmost 
  cases 
  not 
  at 
  all 
  striking, 
  fails 
  in 
  none 
  

   of 
  my 
  curves, 
  either 
  in 
  Russia, 
  or 
  in 
  Italy, 
  or 
  England. 
  

  

  Another 
  instance 
  is 
  the 
  rise 
  of 
  temperature 
  about 
  the 
  first 
  

   days 
  of 
  February, 
  followed 
  by 
  a 
  minimum, 
  which 
  is 
  best 
  to 
  

   be 
  seen 
  in 
  the 
  curve 
  for 
  Munich. 
  This 
  anomaly 
  is 
  very 
  

   irregular 
  indeed, 
  appearing 
  for 
  some 
  curves 
  in 
  January, 
  for 
  

   others 
  in 
  February, 
  and 
  much 
  more 
  apparent 
  in 
  one 
  place 
  

   than 
  in 
  another. 
  But 
  it 
  is 
  always 
  there. 
  

  

  Now 
  it 
  is 
  not 
  very 
  probable 
  that 
  for 
  both 
  these 
  anomalies 
  

   I 
  should, 
  by 
  confining 
  myself 
  to 
  European 
  stations, 
  have 
  

   exactly 
  hit 
  the 
  limits 
  of 
  the 
  area 
  on 
  which 
  they 
  make 
  them- 
  

   selves 
  felt. 
  And 
  should 
  it 
  be 
  that 
  any 
  anomaly 
  of 
  this 
  kind 
  

   makes 
  itself 
  felt 
  in 
  America 
  and 
  in 
  Asia 
  also, 
  we 
  ought 
  then 
  

   probably 
  to 
  look 
  for 
  the 
  explanation 
  of 
  it 
  beyond 
  the 
  limits 
  

   of 
  our 
  globe. 
  I 
  do 
  not 
  mean 
  to 
  imply 
  that 
  1 
  expect 
  such 
  a 
  

   thing 
  to 
  be 
  the 
  case, 
  but 
  it 
  is 
  not 
  absolutely 
  impossible. 
  

  

  Other 
  anomalies, 
  which 
  appear 
  only 
  on 
  a 
  part 
  of 
  a 
  hemi- 
  

   sphere, 
  probably 
  must 
  have 
  a 
  purely 
  terrestrial 
  origin. 
  But 
  

   if 
  we 
  had 
  a 
  sufficient 
  number 
  of 
  curves 
  J 
  expect 
  that 
  we 
  

   should 
  be 
  able 
  for 
  most 
  of 
  these 
  anomalies 
  to 
  see 
  at 
  a 
  glance 
  

   where 
  they 
  originate, 
  and 
  after 
  that, 
  a 
  guess 
  at 
  the 
  cause 
  

   might 
  in 
  many 
  cases 
  be 
  easier 
  than 
  it 
  is 
  now. 
  

  

  Allow 
  me 
  to 
  give 
  an 
  instance. 
  The 
  three 
  " 
  ice-saints 
  *' 
  

   which 
  have 
  always 
  found 
  such 
  strong 
  belief, 
  and 
  quite 
  as 
  much 
  

   disbelief, 
  are 
  certainly 
  indicated, 
  faintly, 
  as 
  one 
  would 
  expect, 
  

   in 
  many 
  curves 
  for 
  central 
  Europe, 
  even 
  as 
  far 
  as 
  Flushing 
  

   and 
  Konigsberg, 
  more 
  strongly, 
  however, 
  for 
  Munich, 
  

   Bremen, 
  Lyons, 
  Montpellier. 
  But 
  does 
  this 
  prove 
  that 
  their 
  

   cause 
  lies 
  in 
  the 
  melting 
  of 
  the 
  snow 
  on 
  the 
  Alps, 
  as 
  some 
  

   meteorologists 
  think 
  ? 
  The 
  downward 
  slope 
  of 
  the 
  curve 
  

   is 
  just 
  as 
  apparent 
  lor 
  Rome, 
  Palermo, 
  Biskra 
  in 
  Algeria, 
  

   especially 
  so 
  for 
  Constantinople 
  and 
  for 
  Arvaralja, 
  a 
  station 
  

   to 
  the 
  north 
  of 
  Vienna. 
  As 
  it 
  is 
  not 
  quite 
  so 
  apparent 
  for 
  

   many 
  other 
  stations, 
  it 
  seems 
  difficult 
  as 
  yet 
  to 
  give 
  an 
  

  

  