142 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



heavy in many parts of the kmgdom, especially in the South and West, 

 while in the East and North-East it was in some districts a good deal 

 less than the average; at Wisley rain fell on twenty-three days, and 

 the total fall was four inches. Sunshine was generally deficient, and 

 the winds were stronger than the average. 



Tli-^ following are the results of the observations made at Wisley : 



Mean temperature of the air in shade ... ... ... ... 52°.7 



Highest „ „ , 65°. 0 on the 1st 



Lowest „ „ „ 29°.0 „ 30th 



Lowest „ on the grass 22°. 4 „ 30th 



N amber of clays of ground frost 3 



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

 deep. deep. deep. 



Mean temperature of the soil at 9 a.m 53°.5 55°.2 55°.5 



Highest „ „ „ 57^8 57°.5 56°.5 



Lowest „ „ „ 43°.6 48°.4 52°.3 



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



represented by 100) ... 84 % 



Rain fell on 23 days to the total depth of 4-00 in. 



(Equivalent to about 18| gallons of water to the square yard.) 



Heaviest fall on any day 1-00 in. on the 28tb 



The prevailing winds were southerly and south-westerly. 

 The average velocity of the wind was 7*3 miles an hour. 



There were only 89| hours of bright sunshine, equal to 31 per cent, of the greatest 

 possible amount. 



There were 9 days on which no sunshine was recorded, and the average daily 

 amount was 2-9 hours. 



November. — The weather of November was in marked contrast to 

 that of October, the warm, moist, sunless condition which then pre- 

 vailed being followed by sunny but cold weather, with a mean tem- 

 perature considerably below the average. Low night temperatures 

 were not infrequent, and at Wisley the grass thermometer fell to 

 10*^ or 12° below freezing-point on several occasions. The rainfall 

 was remarkably light ; over the greater part of Great Britain it did 

 not exceed an inch, and in m.any places the total fall was less than 

 half an inch. At Wisley it amounted to less than six-tenths of an 

 inch, the greater part of which fell during the last four days of the 

 month. The amount of sunshine was above the normal for the month 

 in all parts of the kingdom, and over some of the Southern and Western 

 Counties the excess was considerable. 



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



Mean temperature of the air in shade 40°.6 



Highest „ „ „ 56°.0 on the 6th 



Lowest „ „ „ 26°.0 „ 9th 



Lowest „ on the grass 20*^'. 0 23rd 



Number of days of ground frost ' ... 20 



At ] ft. At 2 ft. At 4 f *. 



deep. deep. deep. 



Mean temperature of the soil at 9 A.M. 42^.1' 45°.4 48°.3 



Highest „ „ „ 49°.3 50°.5 51°.8 



Lowest „ „ „ 36°.6 40°.9 44°.8 



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



represented by 100) 91 % 



I 



