102 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
gallons of water to the square yard). Heaviest fall on any day 079 in., on the 
29th. 
The prevailing winds were south-westerly and north-easterly. 
The average velocity of the wind was 4 miles an hour. 
There were 184 hours of bright sunshine, equal to 41 per cent, of the greatest 
possible amount. 
There was 1 day on which no sunshine was recorded. 
September.— The weather throughout this month was generally 
quiet, with a nearly normal temperature, and rather less than the 
N 
S 
Fig. 32. — Distribution of Winds during the Year. The Relative 
Frequency of Calms is shown by the Shaded Circle in the 
Centre. 
usual amount of rain, but with a marked deficiency of bright sunshine, 
so that it may fairly be described as dry but dull. Nowhere was there 
any prolonged spell of sunny weather, and at the Gardens the average 
daily deficiency amounted to nearly two hours. On the other hand, 
there were no sharp autumnal ground frosts, such as frequently occur 
in September, although on two or three occasions slight ones were 
recorded ; and in consequence right up to the close of the month a 
quite extraordinary growth of vegetables was maintained, whilst 
fruit buds rapidly swelled, trees and shrubs maintained their greenness 
