in order to etfcertain the height of Mountains . 529 
Comparifon of the jirjl feries* 
Obfervations at jthe top of the mountain at c. 
Barom. N° 2. Therm. Therm, 
above at c. attached, detached. 
In. Pts. 0 o 
25.7120 78.0 6 $,q 
Correct for the diff. of the! ^ ^ 
2 attached therm. 5°.g ? J 
Barometer at the top, 25.6958 Log. 
— — — below, 28.3951 Log. 
4098621 
4532434 
D "ss I ”; f,,lof,he ) 433.S.3 {'Sfftof 8 - 
Correct for 29°*7 heat, — — + 28.728 
Corre£t height in fathom, — •*- 
462.54? 
x 6 
Height in Englifh feet by the barometer, - 
Height by the trig, method, — - — 
- 2775.246 
2831.3 
Difference, or error of the barometer 
— 5 6 - 1 
Obfervatioris below at a. 
Barom. N° 1. Therm, 
below at a, attached. 
In. Pts. 0 
28.3990 72.1 
Corre£t for the diff. *1 
Therm. 
detached. 
73*9 
65.0 heat at c. 
or tne oaromecer, j 0 
28.3951 
69.4 mean heat of the air/ 
_ f {land. temp, according 
39*7 I to Dr. HORSLEY. 
- 
■4 29.7 difference. 
A detached thermometer in the tent flood at 7 oP, 
Vol. LXVIL 
Z z z 
Com- 
