( X ) 
Weight of Vapour in 
a Cubic Foot of Air. 
Difr. from 
average of 
31 years. 
r~- -1 O 
!2 o o o 
& + 1 
Z.0 + 
& 
cob 
1 + + 
b 
+ 
a 
Ss >J^ ^ ^ 
ti, ivv r» 
Elastic Force 
of Vapour. 
Diff. from 
average of 
31 years. 
oo o 
vr\ O O 
a ? ? ? 
*"* o o b 
+ 1 1 
O 
o 
+ 
d 
tr» 
0 o O 
b b b 
1 + + 
oo 
o 
o 
b 
+ 
d 
§ 
<^ 
b b b 
o 
Cs VO ^ 
b b b 
r* 
b 
j Temperature of 
Water 
of the 
Thames. 
vi^ O 
o o \o 
o 
vO 
o 
O O u^ j d 
vr, ^ 1 ^ 
0 
s, 
"3 
O 
I 
Diff. from 
average of 
31 years. 
o n o O 
+ 4- + 
+ 
o 
oo n 
b " « 
+ 1 1 
b 
1 
c 
rt 
<l> 
3 
^ M 
r» M 
o 
o 
o O "-^ 
O CO 
M 
_g 
*o 
& 
<u 
» 
Ditf. from 
average of 
31 years. 
H 
Q rA O O 
+ 11 
M 
+ 
o 
ri r* oo 
tH r* ^^ 
1 + + 
S 
vO OO 
*X\ Kr\ »j\ 
o 
o 
a 
_o 
"S 
o 
a, 
a 
> 
w 
E'S « 
£ 0) 
^i- 
OO M 
° + 1 1 
oo 
o • 
+ 
OO t-* 
r« (S 
1 + + 
M 
+ 
CO 
ri 
S 
O o 
° o o + 
ir> 
o 
^ ^1- ^ 
Diff. from 
average of 
31 years. 
O il'i- M 
o O O 
+ .1 + 
o 
+ 
o 
r~- r*» 
>-« M 
1 + + 
o 
o 
+ 
Diff. from 
average of 
101 years. 
o o O 
+ + + 
+ 
o 
CO O oo 
W rA rA 
1 + + 
+ 
a 
rt 
<v 
O O -"l- 
»0 vD u-( 
so 
o 
oo PA OS 
^ ^ 
rt 
1872. 
Months. 
July .. .. 
August 
September . . 
o 
October 
November .. 
December . ■ 
