98 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
the time of year, and some sharp ground-frosts occurred. Then ensued 
a spell of changeable weather, with lower day temperatures and more 
or less rain, but still with a record of sunshine on nearly every day, 
although sometimes only a very brief one. A very decided improve- 
ment then took place — a milder air current set in, the weather became 
quite dry, and the closing days of the month were warm and brilliant. 
Taking the month as a whole, it may be fairly described as sunny and 
warm, the mean temperature having been about half a degree above 
the average, whilst the amount of bright sunshine recorded was very 
nearly half the possible amount. The middle of the month was rather 
JAN FEBfVIARAPR MAY JUN JUL AUG SEP OCT NOV DEC* 
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Fig. 31. — Mean Temperature of the Air, and of the Soil at the Depth 
of One Foot and of Four Feet below the Surface, for each Month. 
windy, but there were no gales in the south-eastern portion of the 
kingdom, and nothing to retard garden work, so that the arrears due 
, to the bad weather of the preceding months could be overtaken, and at 
the same time vegetation — and especially bulbs — made good progress. 
The results of the daily observations made at the Meteorological 
Observatory in the Gardens are as follows : — 
Mean temperature of the air in shade . . . .48° 
Highest „ „„.... 75 0 on the 27th 
Lowest „ „„.... 30 0 „ 8th 
„ „ on the grass . . . . .19° 8th 
Number of nights of ground frost ...... . 16 
At depth of 
1 ft. 2 ft. 4 ft. 
Mean temperature of the soil at 9 a.m, . . . 45'7° 45'4° 44'3° 
Highest „ „ „ . . . 527 0 . 50-2° 469° 
Lowest „ „,,.., 426 0 427 0 42-5° 
