283 
1830.] On the Climate of the North- TV \ ester n Mountains. 
the experiment ; and it was with this idea that we devoted ourselves with so much 
perseverance to the comparison of the several scales. 
Remarks by the Editor. __ , 
This paper concludes the first part of the enquiry undertaken by Messrs Dulong- 
and Petit, as will be observed, by referring 1 hack to the introduction pre e 
first paper, Vol. i. p. 29. The second part comprehends the Laws of tooling, andem- 
hraces, still more important results than the first. We hope to be able to conclude t 
second part in the course of the present volume. 
I V.—Ott the Climate of the North-Western Mountains. 
A general statement of the Weather for April, 1 b29 . 
Clear, 11 days 
Fair, but cloudy, and partially cloudy, ^ d lj*° 
Rain, stormy and hail, “ ° 
mi i 6 ditto 
1 bunder, , , ” . 
Clear, on the 1st, 8th, 9th, 10th, lfith, 17th, 21st, 22d, 24th, 25th, and 26th. 
Fair, but cloudy, and partially cloudy, on the 2d, 11th, 15th, 18th, IJtli, 2 , 
22d, 28th, 29th, and 30th. * , , tl , . 
Rainy, stormy, and hail, on the 3d, 4tli, 5th, 6th, 7th, 12th, 13th, 14th, and -7 
Thunder, on the 3d, 4th, 6th, 7 tli , 13th, and 27tU. 
Height of the Barometer at Brcri, from 
Mean maximum. 
Mean minimum, 
Mean of the daily means, 
Greatest altitude, on the 3d, at 10 a. m. 
Least ditto, on the 5th, at 6, 30 A. M. 
the 1st to 8th inclusive . 
Inches Th. 
22,873 57,5 
22,797 50,9 
22,835 54,2 
22,896 56,7 
22,776 48,4 
Temperature of the Air. 
Mean maximum, 5b, 2 
Mean minimum, 42,6 
Mean of the daily means, 49,4 
Greatest, on the 2d, at 2 P. M. 62,3 
Least, on the 8th, at sun-rise, 41, 
Mean, 51,6 
Temperature of the House. 
Mean maximum, 50,8 
Mean minimum, 46,3 
Mean of the daily means, 48,5 
Grtst. on the 2d, at 1, 2 and3 PM. 53,3 
Least, on the 4th, at sun-rise & 8 am. 45, 1 
Mean, 49,2 
Hygrometrical state of the Air . 
Leslie’s Hygrometer, greatest altitude, on the 2d, at 2 and 3 p. m. 
Ditto ditto, least ditto, on the 4th, at 9, 30 p. M. 
Hater’s ditto, greatest ditto, on the 4th, at 9, 30 p. m. 
Ditto ditto, least ditto, on the 2d, at 4, 45 p. m. 
69 
4 
673 
239 
The following were observed at intermediate places , during the March from Kotgerh 
to Soobathoo. 
Place. 
Date. 
Barometer. 
Thermometer 
attached. 
Ther. detach- 
ed ; or in the 
air and shade. 
Hater’s 
Hygro- 
meter. 
At Matiaua, (1) 
Pliiigu, (2) 
Simla, (3) 
Ditto, 
Sairi house, (4) 
i 
• 
• •— < 
U 
P. 
< 
A 
a 
3 
a 
i 
P 
P 
o 
s 
A 
rt 
s 
67.3 
62,2 
62.4 
61,2 
74,7 
S 
a 
V 
s 
A 
a 
s 
a 
V 
a .5 
s s 
9. 
10. 
11. 
12. 
13. 
92,506 
22,364 
23,122 
23,074 
25,382 
22,454 
22,330 
23,046 
23,018 
25,308 
22,480 
22,350 
23,084 
23,046 
25,345 
59,8 
57.5 
59,2 
59.6 
69.6 
63.5 
59.8 
60.8 
60.6 
72,1 
70, 
65,7 
72,4 
70,2 
80,6 
51,6 
(flf 
j5,7 
-5,7 
2,3 
60,8 
.58,2 
64, 
62,6 
71,4 
260 186 
177 138 
221 130 
221 164 
150 114 
