( XXVI ) 
Weight of Vapour 
In a 
Cubic Foot of Air. 
jDiff. from 
average of 
29 years. 
si O O O 
to 1 1 1 
b 
1 
M M hH 
m O O O 
fe 4- 1 1 
o 
b 
a 
a 
rA C> 
ti M M 
OO M 
£o r» Tj- 
Elastic Force 
of Vapour. 
Diff. from 
average of 
29 years. 
^ ? 
.S ? P P 
0 o o 
1 1 1 
M 
o 
o 
1 
so »^ 
MOO 
d P P o 
" o o o 
1 1 1 
t ^ 
O 
o 
b 
1 
c 
a 
0> O 
.s r r r 
o o o 
oo 
b 
O M ON 
^A O VO 
rA rA 
""bob 
o 
b 
Temperature of 
AVater 
of the 
Thames. 
rA rA 
oo 
rA 
ri- 
to 
c 
"3 
a 
I 
DilT. from 
average of 
29 years. 
M M M 
° 1 1 1 
T 
rA 
° + + + 
+ 
p 
ci 
■O vO <JN 
OO O <N 
H< 
o 
M 
^ V 
r» r< r» 
'o 
Ph 
& 
a 
Diff. from 
average of 
29 years. 
CT* *r\ 
O "-A M 
1 1 1 
1 
Ti" h-t 
« M O O 
° 1 1 1 
b 
! 
§ 
H 
° Tt- ON V 
rA r» rA 
oo 
rA 
° OS ^ O 
rA lA 
o 
c" 
o 
p. 
> 
Diff. from 
average of 
29 years. 
^ o <^ 
1 1 t 
O 
d 
1 
W CO 
o b b b 
+ 1 + 
*A 
b 
+ 
d 
o 
° o r--. 
rA ^A «^ 
CN 
u^ 
rA 
° V 'on Ia 
ON 
Diff. from 
average of 
29 yeais. 
H W C?> 
ft O w 
+ 1 1 
1 
OO ^ ON 
° i i ; 
M 
+ 
Diff. from 
average of 
99 years. 
O rA rA 
o (N IH 
° + 1 1 
o 
1 
ON CO r-^ 
_ <s O r) 
° + + + 
+ 
d 
GO o a^ 
rv^ m <^ 
o 
CO 
CN 0> 
° OO rA O 
i-A 
1870. 
Months. 
Januarj- 
February .. 
March 
C 
C3 
QJ 
<5 
April .. 
May .. .. 
June .. .. 
0 
C3 
<5 
