﻿Main, 
  Wind, 
  and 
  Cyclones. 
  

  

  227 
  

  

  time. 
  The 
  growth 
  of 
  the 
  depression 
  appears 
  to 
  have 
  been 
  

   from 
  above 
  downwards. 
  Si 
  

  

  Another 
  condition 
  of 
  wind 
  and 
  pressure 
  which 
  oftenfgives 
  

   rise 
  to 
  heavy 
  rain 
  is 
  known 
  as 
  a 
  V-shaped 
  depression. 
  Such 
  

   a 
  one 
  formed 
  over 
  England 
  during 
  the 
  interval 
  from 
  Jan. 
  & 
  

   to 
  8 
  in 
  1900. 
  There 
  was 
  a 
  low-pressure 
  area 
  over 
  Iceland, 
  and 
  

  

  Fig. 
  4. 
  

  

  a 
  tongue 
  of 
  it 
  was 
  thrust 
  in 
  between 
  a 
  high-pressure 
  area 
  over 
  

   Scandinavia, 
  and 
  another 
  in 
  the 
  region 
  of 
  the 
  Bay 
  of 
  Biscay. 
  

   Fig. 
  5 
  shows 
  the 
  condition 
  of 
  affairs 
  at 
  6 
  p.m. 
  on 
  Jan. 
  6th. 
  

   The 
  depression 
  subsequently 
  extended 
  in 
  a 
  south-westerly 
  

   direction, 
  low 
  pressure 
  still 
  holding 
  to 
  the 
  north-west. 
  Tt 
  

   shows 
  a 
  strip 
  of 
  southerly 
  wind, 
  with 
  westerly 
  winds 
  to 
  the 
  

   west 
  of 
  it, 
  and 
  easterly 
  winds 
  to 
  the 
  east. 
  The 
  southerly 
  

   wind 
  is 
  moving 
  at 
  a 
  low 
  angle 
  across 
  the 
  isobars, 
  from 
  high 
  

   to 
  lower 
  pressures. 
  The 
  depression 
  is 
  thus 
  a 
  marginal 
  feature 
  

   of 
  the 
  great 
  Icelandic 
  depression. 
  The 
  rain 
  is 
  considered 
  by 
  

  

  