132 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



At 1 ft. At 2 ft. 

 deep. deep. 



Mean temperature of the soil at 9 A.M. ... 59°.9 60°.3 



Highest „ „ „ 62°.l 61°.8 



Lowest „ „ „ 57°.8 59°.6 



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



represented by 100) 78 % 



Rain fell on 13 days to the total depth of 2-93 in. 



(Equivalent to about IS^ gallons of water to the square yard.) 



Heaviest fall on any day 0-74 in. on the 3rd 



The prevailing winds were from between south-west and north-west. 

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



There were 121 hours of bright sunshine, equal to 25 per cent, of the greatest 



possible amount. 

 There were 6 days on which no sunshine was recorded. 



August. — This was another very cool and unsummerhke month, the 

 thermometer, as in July, only occasionally exceeding 70°. But whilst 

 the maxima were low the night minima were unusually high, with 

 the result that the mean for the month was nowhere greatly below the 

 average, and in some districts it slightly exceeded it. Bright sun- 

 shine was very deficient, especially over those parts of the Kingdom 

 where at this season it is generally most abundant ; in the Channel 

 Islands there was a loss of 10 per cent., and in some parts of southern 

 England as much as 16 per cent. A measurable amount of 

 rain fell at Wisley on fifteen days, and less than an hundredth of an 

 inch was found in the gauge on six other days. The total fall was 

 above the average in nearly all parts of the Kingdom. The month 

 was rather more windy than is usual in August, the direction of the 

 wind being very persistently south-westerly. As illustrating the 

 abnormal character of the weather it may be mentioned that the only 

 part of the Kingdom in which a temperature of 80° was registered was 

 the Shetland Isles ! 



The results fr'Om Wisley are as follows : — 



Mean temperature of the air in shade ... ... ... ... 61°.3 



Highest „ „ „ 76°.2 on the 12th 



Lowest „ „ „ 47°.3 „ 23rd 



Lowest „ on the grass 40°.0 „ 23rd 



There were no ground frosts. 



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

 deep. fieep. deep. 



Mean temperature of the soil at 9 a.m 61°.5 . 60°. 9 59°.5 



Highest „ „ „ 63°.8 62°.2 60°.l 



Lowest „ „ „ 58°.2 58^9 58°.2 



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



represented by 100) 79 % 



Kain fell on 15 days to the total depth of 2*16 in. 



(Equivalent to about 10 gallons of water to the square yard.) 



Heaviest fall on any day 0'40 in. on the 26th 



The prevailing winds were from south-west. 



The average velocity of the wind was 5 miles an hour. 



There were 168 hours of bright sunshine, equal to 88 per cent, of the greatest 



possible amount. 

 There were no days on which sunshine was not recorded. 



