( IX ) 
Reading of Thermometer on Qrass. 
Highest 
Reading 
at 
Night. 
M O O 
° Kr\ X> 
^ ^ 
£ o 
M OO 
O ^ ^ 
^ w% 
Highest 
54-5 
Lowest 
Reading 
at 
IMlcrht 
r-. 
O CN O 
^ W *H 
1 r 
1 ^ 
O \0 O 
° ^ « i> 
C< fA ivs 
.3 " 
Number of Nights It was 
Above 
40°. 
S 
9 n 
M 
O 'A 
ri r . 
Between 
30° 
and 40°. 
OO OO 00 
i 
O SO 
a ^ 
At or 
below 
30°. 
r>» so >o 
g o^ 
to 
OO o O 
a OO 
m 
Dally 
Horizontal 
movement 
of the Air. 
DO O OO 
C CTN 
eS C^ 
a 
Miles. 
28l 
289 
205 
g OO 
a " 
a 
"3 
P4 
Dlff. from 
average 
of e3 years. 
1-1 
c V ^ ^ 
- 1 1 1 
o 
S 1 
0 
d r< <s (s 
- + + + 
a 'r- 
1 
o 
a 
<i 
5 o w 
J 
fs-l r..) 0 
— V V V 
a • 
03 _ 
Weight of 
aCnhloFoot of Air. 
DICf. from 
average of 
37 years. 
^ + + + 
+ 
1 
d 
a 
£ w% ._r^ 
t£ u^ u^ 
•1 0 
£ 
^ .v^ 
Reading 
of Barometer. 
Dlff. from 
average of 
37 years. 
1-4 CO 
O ^ 
"boo 
+ + + 
O 
■ + 
0 00 
a M 1-1 0 
000 
1 1 1 
0 
b 
1 
a 
« 
o 
O 
CT> o c> 
o 
CN 
o 
r* 
00 0 
fl' -O NO p 
^ ^ r« 
00 
o» 
Degree 
of Humidity. 
Dlff. from 
average of 
37 years. 
1 + 1 
1 
i-i 0 
4- 
a 
9 
ft^- r-^ 
OO OO 
<^ 
OO 
0 OO ^ 
1 - I ^ t - 
1878. 
Months. 
January 
February 
March 
a 
c 
05 
» 
April 
May . , 
June 
CD 
a 
a 
s 
VOL. XV. 
s. 
