! 
: 
3 
Colombia between the Years 1820 and 1830, 21 
° 
1 2.2=141.2 ; 19.15::12! “ss a mg = 0°.971 of Reaumur for 
12!. of the barometer. 
I ascended to Paisbamba, a small farm iad leagues south of 
Popayan. Barometer 20: 91.1. B. W. 73°. 
Barometer in Popayan 22 111.2 ie W. 75°.65 
in Paisbamba 20 9.1 B. W. 73 .50 
Differences 2 2.1 2° 16 
12 x2.15 
221=26)1 ; 2°.15::1 a=, 988 of Reaumur, for 12 
lines of the barometer. 
I ascended a hill E. of Paisbamba called Sombreros. Barom- 
eter 19i, 61.5. B. W. 72°.4. 
Barometer in Popayan 22i 111.20. B. W. 75°.65 
on Sombreros 19 9.05. B. W. 72 .40 
Differences * 6-46. 3 .25 
A115 ; 39.25: se =0.947 for 12 lines barometer. 
I ascended the hill of Tambores: barometer 18: 11.6. B. W. 
71°.75, 
Barometer in Popayan 22: 111.2. B. W. 75°.65 
on Tambores 18 11.6. B. W. 71 .75 
Differences 3 11 .6. 3 .90 
12 x3.9 
47.6 3 3°.9::12 47-6 = 0-983 for 12! barometer. 
g° 
Proof that above io of Reaumur is the true exponent of one 
inch of the barometer. 
I then proceeded to take the observations of Las Juntas and 
Sombteros, and calculating the exponent anew. 
Phroihdter'i in Las Juntas 21 9 B. W. 74.60 
in Sombreros 19 6.05 72.40 
Differences 2 2.95 2.2 
12 X2.2 Ries 
26.95 ; 2°.2°+19 96.95 = 0°:979 Reaumur for 12 lines of the 
barometer, 
