( XVI 
) 
Weight of Vapour 
in a 
Cubic Foot of Air. 
Dltr. from 
average of 
28 years. 
2 b b b 
o 
•4- 
io o o o 
4-1 1 
o.o 
a 
c3 
1 
5} M CI (S 
r* 
_ oo 
in i-A rA 
.A 
rA 
rA 
O 
O 
O 
1 
Elastic Force 
of Vapour. 
Dlff. from 
average of 
28 years. 
r-^ 00 n 
n O O o 
o b b 
+ + 1 
O 
o 
+ 
M rA 
O fA 
d o o o 
"bob 
+ 1 1 
i 
•J^ rA 'i- 
e r» ^ CO 
M M 
oho 
n 
O 
rA O 
Q- CN O 
.S r< rA rA 
bob 
rA 
rA 
b 
rA 
NA 
Temperature of 
Water 
of the 
Thames. 
^ O lr^ O 
^ 
ON O 
® ON rA O 
^ SA k/N 
Air— Daily Range. 
Dlff. from 
average of 
28 years. 
O O O r* 
1 + 1 
»-A 
o 
1 
^ T^ 
O rA O 
+ 1 + 
kA 
b 
1 
i 
O ON ri 
M M 
CO O rJ- 
" O** M 
M M M 
ON 
*o 
& 
a 
Dlff. from 
average of 
28 years. 
!>. r-- O 
+ + 1 
+ 
M rA "4" 
M.N 
b 
+ 
a 
V 
O O 'J- 
" O 
m <^ 
\0 ^ 
o V * 
tA oo 
Tj- 
H 
a 
o 
2 
o 
n 
eS 
f- 
Diff. from 
average of 
28 years. 
CO r-^ O 
n ir\ rA 
° + + 1 
+ 
VO *^ 
rA M r* 
+ 1 1 
n 
b 
1 
o 
vo M tI- 
O <T> kJ-\ 
rA -rj- rA 
rA 
CA O oo 
o 1 * ' 
>J^ 
M 
ON 
^1- 
Diff. from 
average of 
28 years. 
O ri M 
*^ 4- 4- 1 
rv, 
4- 
KO ON 
Q rA n rA 
4- r 1 
O 
T 
Diff. from 
average of 
98 years. 
O^ O^ *rs 
+ + 1 
oo 
+ 
rA M O^ 
+ 1 1 
n 
b 
1 
§ 
s 
M ^ U-> 
O . . . 
r}- rA 
rA vA rA 
° o b >A 
kA fcA NA 
o 
lA 
1869. 
Months. 
January . . 
February . . 
March 
a 
April .. 
i\Iay . . 
June .. 
a 
