MR. HUDSON’S HOURLY OBSERVATIONS ON THE BAROMETER. 587 
Seventh set of fifteen days’ Observations. Jan. ] 7th to Jan. 31st, 1832*. 
Times of 
Observation. 
Number of 
Observations 
at each hour. 
Barometer. 
Attached 
Thermometer. 
Barometer 
reduced 
to 32°. 
Difference of 
Barometer 
from mean. 
Difference of 
Thermometer 
fiom mean. 
h 
A.M. 1 
15 
inches. 
30-190 
44-0 
inches. 
30-154 
+ •018 
o-o 
2 
15 
30-185 
44-1 
30-149 
+ •013 
+ 0-1 
3 
15 
30-181 
44-1 
30-145 
+ •009 
+ 0-1 
4 
15 
30-178 
44-0 
30-142 
+ •006 
0-0 
5 
15 
30-173 
44-0 
30-137 
+ •001 
0-0 
6 
15 
30-172 
43-9 
30-136 
•000 
-0-1 
7 
15 
30-173 
43-8 
30-138 
+ •002 
— 0-2 
8 
15 
30-178 
43-7 
30-143 
+ •007 
-0-3 
9 
15 
30-185 
43-6 
30-150 
+ •014 
— 0-4 
10 
15 
30-193 
43-6 
30-158 
+ •022 
— 0-4 
11 
15 
30-194 
43-6 
30-159 
+ •023 
-0-4 
12 
15 
30-183 
43-6 
30-148 
+ •012 
— 0-4 
P.M. 1 
15 
30-168 
43-9 
30-132 
—•004 
-0-1 
o 
15 
30-160 
44-1 
30-124 
— •012 
+ 0-1 
3 
15 
30-160 
44-2 
30-123 
—•013 
+ 0-2 
4 
15 
30-159 
44-2 
30-122 
-•014 
+ 0-2 
5 
15 
30-161 
44-2 
30-124 
-•012 
+ 0-2 
6 
15 
30-163 
44-3 
30-126 
— •010 
+ 0-3 
7 
15 
30-165 
44-2 
30-128 
— •008 
+ 0-2 
8 
15 
30-167 
44-1 
30-131 
—•005 
+ 0-1 
9 
15 
30-165 
44-1 
30-129 
-•007 
+ 0-1 
10 
15 
30-163 
44-2 
30-126 
— •010 
+ 0-2 
11 
15 
30-164 
44-3 
30-127 
-•009 
+ 0-3 
12 
15 
30-156 
44-2 
30-119 
— •017 
+ 0-2 
Mean.... 
30-172 
44-0 
30-136 
* The Rev. Mr. Hussey made, during this period, fifty-five corresponding observations at the Rec¬ 
tory at Chiselhurst, with one of Fortin’s best barometers. I am indebted to his kindness for a copy 
of these observations, and, on a future occasion, I propose to compare them with my own. 
