586 MR. HUDSON’S HOURLY OBSERVATIONS ON THE BAROMETER. 
Corresponding Variations of the Water, Standard, and Mountain Barometers ; 
and their Thermometers. 
Times of 
Observation. 
Water Baro- 
meter reduced 
to the stand- 
ard of Mer- 
cury. 
Attached 
Thermo- 
meter. 
Immersed 
Thermo- 
meter. 
Subjacent 
Thermo- 
meter. 
Royal 
Society’s 
Standard 
Barometer. 
Attached 
Thermo- 
meter. 
Thermo- 
meter at 
Vacuum 
Chamber. 
Mountain 
Barometer. 
Attached 
Thermo- 
meter. 
h 
o 
o 
o 
o 
o 
0 
A.M. 1 
—•008 
-0-6 
+ 0-1 
— 0-1 
— •004 
-2-1 
— 1-8 
-•007 
-0-6 
o 
— •012 
— 0-8 
0-0 
-0*1 
— •007 
— 2-4 
-2-1 
— •010 
-0-8 
3 
— •013 
— 1-0 
o-o 
— 0-1 
-•008 
— 2-6 
-2-3 
—•010 
— 1-2 
4 
— •Oil 
— 1-0 
-0*4 
— 0-2 
-•017 
—2-5 
— 2-4 
-•014 
— 1-5 
5 
—•006 
— 1-3 
-0-7 
— 0-2 
— •012 
—2-7 
-2-3 
— 013 
— 1-8 
6 
•000 
-1-6 
— 1-0 
-0-2 
— •005 
—2-4 
-1-5 
— •007 
-1-8 
7 
+ •004 
— 1-8 
— 1-3 
— 0-2 
+ •002 
-1*7 
-0-5 
— •001 
-1-7 
8 
+ •003 
-1-9 
— 1-4 
-0-2 
+ •005 
— 1-0 
— 0-1 
+ •001 
— 1-4 
9 
+ •004 
— 1-5 
— 1-4 
— 0-2 
+ •004 
+ 0-3 
+ 0-9 
+ •001 
-0-8 
10 
+ •002 
— M 
— 1-5 
— 0-2 
+ •004 
+ 0-6 
+ 1-2 
+ •001 
— 0-5 
11 
+ •001 
— 0*5 
— 1-3 
— 0-2 
•000 
+ 1-6 
+ 1-4 
— •001 
-0-3 
12 
+ •003 
+ 0-3 
-0-9 
-0-1 
•000 
+ 1-9 
+ 1-5 
+ •001 
+ 0-6 
P.M. 1 
+ •001 
+ 1-2 
— 0-3 
0-0 
-•003 
+ 2-0 
+ 1-9 
+ •001 
+ 0-9 
o 
+ •002 
+ 1-8 
+ 0-1 
0-0 
—•005 
+ 2-2 
+ 2-2 
—004 
+ 1-2 
.3 
-•007 
+ 1-6 
+ 0-5 
+ 0-1 
— •010 
+ 2-4 
+ 2-2 
— •006 
+ 1-3 
4 
—009 
+ 1-6 
+ 0-8 
+ 0-2 
—•012 
+ 2-4 
+ 2-0 
-•009 
+ 1-4 
5 
— •010 
+ 1-6 
+ 1-0 
+ 0-2 
— •015 
+ 2-2 
+ 1-7 
— •010 
+ 1-1 
6 I 
—007 
+ 1-5 
+ 1*1 
+ 0-3 
— •014 
+ 2-0 
+ 1-2 
-•010 
+ 1-5 
7 
—•001 
+ 1-3 
+ 11 
+ 0-3 
—•008 
+ 1-5 
+ 0-7 
-•005 
+ 1-3 
8 
+ •007 
+ 0-9 
+ 1-0 
+ 0-3 
+ •004 
+ 0-7 
-0-1 
+ •005 
+ M 
9 
+ •012 
+ 0*5 
+ 1-0 
+ 0-3 
+ •018 
— 0-1 
-0*3 
+ •015 
+ 0-9 
10 
+ •016 
+ 0-4 
+ 0-9 
+ 0-2 
+ •022 
-0-6 
-0-8 
+ •019 
+ 0-6 
11 
+ •015 
+ 0-1 
+ 0-8 
+ 0-2 
+ •026 
— 1-1 
— 1-0 
+ •022 
+ 0-4 
12 
+ •016 
0-0 
+ 0-7 
+ 0-2 
+ •025 
— 1-4 
— 1-2 
+ •022 
+ 0-1 
Mean. . . 
29-508 
64-9 
64-3 
64-0 
29-816 
68-0 
66-8 
29-823 
64-5 
