1 ,
: i / l , I /
T able I I I .
D aniel ’s H ygrometer, observed at 3 p .m., daily, and compared with the mean
temperature.
Monthly mean tera.\
from Table II. j
Temperature of \
dew point / ’'
Difference between")
mean temperat. >
and dew point J
Dryness (the point“!
of Saturation be- ,
ing lOOOJ............J
Elasticity of •vapour
/eight <
Weight of a cubic")
foot of ol
vapour in N
gruitis
AUTUMNAL PERIOD.
5M 0
41-31
9-79
711-8
295-7
3-3441
March.
49-37
40-75
8-62
736-42
289-0
3-2801
April,
41-22
34-83
6-39
809-9
238-64
2-7550
BRUMAL PERIOD.
May. June.
35-47
34-88
0-59
980
239-04
32-97
30-28
2-69
903
202-24
2-7926 2-3731
July.
33-03
29-41
3-62
876-3
196-46
2-3048
12 Days
of
August.
33-25
30-28
2-97
894-6
202-2
2-3421
47-23
38-96
8-27
752-71
274-44
3-1264
34-49
31-52
2-30
920-23
212-58
2-4902
40-86
35
5
836-47
243-51
2-8
T able IV .
Months. Pressure.
Temperature.
Dew Point,
Air. Water. Hygrometer.
Max. Min. Range. Max. Min. Range Max. ’ Min. Range: Max. Min. Range
inches. inches. inches. o o o 0 o Q o 0 0
February 30-087 28-768 1-3J9 66 28 38-0 52-5 43-7 8-8 51-2 31 2 0 2
March 30-099 29-004 1-095 68 30-5 37-5 50-5 41 -5 9-0 47 35 12
April 30-055 28-844 1-211 57-5 28 29-5 47-8 40-5 7-3 42 27 15
May 29-850 28-795 1-055 49-5 20-5 29-0 48-2 42-8 5-4 43 21 22
June 30-079 28-274 1-805, 48-7 19-2 29-5 47-0 40-3 6-7 41-5 20 21-5
July 30-500 28-942 1-558 44-2 12-6 31-6 45-0 41-8 3-2 39 -7 ! 1 9 20-7
August"!
12 d a y s / 29-782 28-709 1-073 49-2 18-5 .30-7 43-1 40-2 2-9 37-2 20-5 16-7
F rom th e p re c e d in g tab le s i t w ill b e seen th a t th e m e a n tem p
e r a tu r e fo r th e a u tum n a l p e rio d (th e m o n th s o f F e b ru a ry , M a rch ,
a n d A p ril) was 4i7°-2 ; th e m a x im um a n d m in im um w e re re sp e c tiv
e ly 68° a n d 28°. F o r th e b rum a l p e rio d , th e th re e fo llowin g
m o n th s , th e m e an tem p e ra tu re was 34°-5, a n d th e m a x im um a n d
m in im um 49° 5 a n d 12°-6. D u rin g th e fo rm e r, o r a u tum n a l p e rio d ,
th e b a rom e te r r a n g e d b e tw e e n 30-099 a n d 2 8 -768 in ch e s, a n d fo r
th e la tte r i t wa s b e tw e e n 3 0 5 a n d 28-274 in ches. T h e r a n g e for
th e first b e in g 1-331 in ches, a n d fo r th e la s t 2-226 inches.