( iil ) 
Weight of Vapour 
in a 
Cubic Foot of Air. 
Dltf. from 
average of 
18 years. 
& b b b 
+ + + 
b 
1 
T 
Reading of Thermometer on Grass. 
Highest 
Keading 
al. 
Night. 
u\ O ^ 
0 M ^ 
-^1- 
w ^ 
c 
a- 
_s 
1 
\o ^ oo 
^ n (s r» 
r* 
1 
1 
Lowest 
Reading 
at 
Night. 
0 ^ o 
n 
Lowest 
Elastic Force 
of Vapour. 
Diff. from 
average of 
18 years. 
O f> 
.5 O O O 
-1-4-4- 
■>!- 
O 
4- 
Number of Nights it was 
r* iH tl- 
m 
a r~. 
Between 
30° 
and 40°. 
M M »-> 
CO 
Mean. 
O <^ 
.5 r* r» r» 
(N 
At or 
below 
30". 
M W 
a „ 
Temperature of 
Air— Daily Range. 
Diff. from 
average of 
18 years. 
lA 0 M 
° O M 
4- 4- 1 
OO 
b 
1 ^ 
Daily 
Horizontal 
movement 
of 
the Air. 
S 0 0 
g H. M HI 
c 
KA 
S M 
a 
X 
O '-I 
o b ^ 
c 
1 
1 
Diff. from 
average. 
Q- b b b 
1 1 1 
Sum 
-r-6 
Dew Point. 
Diff. from 
average of 
18 years. 
0 M r..^ 
4. 4- 
T T -r 
T 
r* 
-r 
Amount. 
C . • . 
- O O M 
rang 
o 
g 
o o o 
0 r- b 
^ 
r» 
oo 
Weight of 
a Cubic Foot of Atr. 
Diff. from 
average of 
18 years. 
. 'i- 
fe+ 1 1 
r» 
1 
Air. 1 Evaporation. 
Diff. from 
average of : 
18 years, j 
+++ 
1 
c 
„■ O vo 
K VTN w^ 
™^ w^ Lr\ 
VA 
d 1 c^\o 
J 1 Oco b ''^ 
1 r.^ ^ ^ 
o 
o 
1 
T 
Reading 
pf Barometer. 
Diff. from 
average of 
18 years. 
O r» O 
o ^ o 
c " o o 
"++ + 
Diff. from 
average of 
18 years. 
■r«ieo 00 
+++ 
s 
r* o 
• O oo oo 
c • . . 
*^ O c^ 
ON 
OO 
oo 
Diff. from 
average of 
88 years. 
''i- C7^ v/\ 
° V V ^ 
+++ 
1 
1 ■! 
Degree 
of Humidity. 
Diff from 
average of 
18 years. 
1 1 1 
1 
Mean. 
It ■>*• 
° O ^.i 
-i- -i- 
c 
s 
CO M 
00 oc 
oo 
1869. 
Months. 
January .r 
February .. 
March .. .. 
Mean . . 
1 
1859. 
Months. 
January 
February .. 
Marcli . . . . 
Mean . . 
A 2 
