( VII ) 
Weight of Vapour In 
a Cubic Foot of Air. 
Diff. from 
average of 
34 years. 
r- o o 0 
+ + + 
1 o 
1 
jj b b O 
1 1 1 
rA 
O 
1 
Ci 
c 
a 
ti) ^ ^J~> ^ 
1 °° 
1 
Elastic Force 
of Vapour. 
^ > CO 
vri o 
0 O O 
"bob 
1 + + 
1 o 
b 
+ 
^J- o >-< 
r* fH t-« 
a o p O 
0 o o 
1 1 1 
C^ 
O 
b 
C 
e3 
1 
o b b 
b 
O oo 
r« O 
^' <N (s r» 
b b b 
n 
b 
.gas 
(S CO 
\D ^ 
oo O '•^ 
° %, V oo 
.J^ Ti" fv\ 
O 
ba 
« 
>> 
'5 
O 
1 
com 
lag 
e s" 
O • - . 
O O 
1 + + 
o 
M 
1 
o *"* ^ 
1 1 1 
1 
i 
s 
c> o 
^ O CO 
CO 
oo 
t — M n 
° r-, O 00 
r ~ 
b 
o 
a> 
c 
B 
_c 
'o 
g 
& 
DifT. from 
average of 
34 years. 
rj- r-, 
o • • • 
0 r» 
1 + + 
o 
+ 
M CO 
o " " ^ 
1 1 1 
c 
S3 
^ *-* QO \ ^ 
^ 1 ^ 
>-r» 1 vrs 
M ..A 
° ^ r~- vA 
m 
a 
"S 
o 
c 
> 
com 
Pes 
C icg 
>-r\ vtn 
o - • • 
T + + 
+ 
CC "-A 
1 1 1 
"3- 
o 
s 
in 
° o b r: 
■^r <^ 
E = „; 
£ i5 
!=•£ ^ 
£ S« 
o - - . 
r^-i >-« rt 
1 + + 
b 
+ 
r-^ ^A ^ 
Q M M M 
1 1 1 
Diff. from 
Mean, average of 
104 years. 
VJ-. r» vj^ 
1 + + 
+ 
o M b b 
1 1 1 
o 
1 
- 0 o 
° OV b 
vO O 
O 
VA ^ 
CO r< cc 
tr ^ 
? 
1875, 
Months. 
Jijy .. .. 
August 
September 
CQ 
P 
Q 
s 
October .. 
November . . 
December .. 
g 
