134 JOUftNAL OF tHE ROYAL HORT ICIJLTURAL feOCllSTY. 



The following are the results of the observations made at Wisley : 



Mean temperature of the air in shade 3'7°.7 



Highest „ „ „ 5l°.0 on the i4th 



Lowest „ „ „ ... 19°t0 „ 29th 



Lowest „ on the grass 18°. 4 ,, 29th 



Number of days of ground frdst ... ... ... ... ... ... ^0 



Atlft. At 2 ft. At 4 ft. 

 deep. oeep. deep. 



Mean temperature of the soil at 9 a.m 38°.6 41°.0 43°.6 



Highest „ „ „ ... ... ... 42°.2 43°.0 44°.6 



Lowest „ „ „ 34°.8 37°.6 4l°.4 



Mean relative humidity of the air at 9 a.m. (complete saturation being 



represented by 100) 89 % 



Rain fell on 12 days to the total depth of 0*84 in. 



(Equivalent to about 3*9 gallons of water to the square yard.) 



Heaviest fall on any day 0^19 in. On the lOth 



The prevailing winds were from south-west and west. 

 The average velocity of the wind was 6 miles an hout. 



There were 4^) hours of bright sunshine, equal to 19 per bent, of the greatfest 



possible amount. 

 There were 14 days on which no sunshine was recorded. 



February. — The weather during this month was in ^some respects 

 exceptional, being marked by a very small fall of rain and an unusually 

 large amount of bright sunshine. The bright weather was, however, 

 generally cold, owing to the easterly and northerly winds which pre- 

 vailed during a large part of the time, and there were but few really 

 warm days, while on several occasions the thermometer iil the screen 

 fell considerably below the freezing-point, and once (on the 23rd) a 

 minimum of 17° was registered at the Gardens. On the last three 

 days of the month snow fell over most of the country, but not to a large 

 amount. At Wisley 33 per cent, of the possible amount of sunshine 

 was recorded, but in many parts of the kingdom the amount reached 

 between 40 and 50 per cent. 



The following are the results of the observations made at Wisley : 



Mean temperature of the air in shade ... 36^6 



Highest „ „ „ 56°.l on the 4th 



Lowest „ „ „ 17°.0 „ 23rd 



Lowest „ on the grass 14°.0 „ 23rd 



Number of days of ground frost < 20 



At 1 ft. At 2 ft. At 4 ft. 

 deep. detp. deep. 



Mean temperature of the soil at 9 a.m 36°.2 38°.5 41°.0 



Highest „ „ „ 43°.4 42°.0 42°.l 



Lowest „ „ • „ 33°.9 36°.5 39°.6 



Mean relative humidity of the air at 9 a.m. (complete saturation being 



represented by 100) 87 % 



Eain fell on 6 days to the total depth of 0*33 in. 



(Equivalent to about 1^ gallon of water to the square yard.) 



Heaviest fall on any day 0-11 in. on the 28th 



The prevailing winds were from between north and east, but there were many from 



west and south-west. 

 The average velocity of the wind was 6 miles an hour. 



There were 91 hours of bright sunshine, equal to 33 per cent, of the greatest 



possible amount. 

 There were only 5 days on which no sunshine was recorded. 



