EEPOKT ON THE METEOROLOGICAL OBSERVATIONS. 
395 
Ma7j.— Cold and very dry. Both the days and nights were, as a rule, 
about 1 degree colder than is seasonable. On the coldest night the 
thermometer on the grass showed 10 degrees of frost. 
The rainfall was very light, being about three-quarters of an inch less 
than the average for the month. 
Mean temperature of tlie air in shade 51°.4 
Highest 71°.9 on the 31st 
Lowest 30°.5 „ 5th 
Lowest temperature on the grass ; 22°.3 „ 5th 
Mean temperature of the soil at 9 a.m. 
Highest 
Lowest 
At 1 ffc. At 2 ft. At 4 ft. 
deep. deep. deep. 
53°.4 52°.3 50°.3 
57^.6 54°.5 ol°.9 
48°.l 49°.6 48°.3 
Mean relative humidity of the air at 9 a.m. (complete saturation being repre- 
sented by 100) 72 
Rain fell on 10 days to the total depth of 1-24 in. 
(Equivalent to about 6 gallons on each square yard of surface in the Gardens.) 
Heaviest fall on any day ... ... ... ... ... ... 0"44 in. on the 14th. 
June. — Very -warm and rather dry. The days were, as a rule, about 
8 degrees warmer, while the night temperatures were only about half 
a degree warmer than is seasonable. On the coldest night the thermo- 
meter on the grass showed 4 degrees of frost. 
The rainfall was about a quarter of an inch below the average for the 
month. 
Mean temperature of the air in shade 
Highest 
Lowest 
Lowest temperature on the grass ... 
60°.8 
82".7 on the 5th 
39°.3 „ 15th 
27°.7 „ 15th 
Mean temperature of the soil at 9 a.m. 
Highest 
Lowest 
At 1 ft. 
deep. 
62°.3 
64^9 
58°.9 
At 2 ft. 
deep. 
59°.6 
61°.l 
55°.5 
At 4 ft. 
deep. 
55°.5 
57°.4 
52°.l 
Mean relative humidity of the air at 9 a.m. (complete saturation being repre- 
sented by 100) 05 
Rain fell on only 5 days, and to the total depth of 1*70 in. 
(Equivalent to about 8 gallons on each square yard of surface in the Gardens.) 
Heaviest fall on any day 0-80 in. on the 30th 
/z^Z?/.— Exceptionally warm and very dry. The days were, as a rule^ 
about o degrees warmer, and the night temperature about 8 degrees 
warmer, than is seasonable. On the coldest night the thermometer on the- 
grass fell to 38 degrees, or six degrees short of the freezing-point. 
The rainfall was very light, being about an inch less than the average 
for the month. 
Mean temperature of the air in shade 
Highest... 
Lowest... 
Lowest temperature on the grass ... 
65°.7 
86^2 on the 21st 
47°.4 „ 28th 
38°.l „ 28tk 
P 
