22 Meteorological Obsei^vatioiis made in 



Barometer in Paisbamba 20 9.1. B. W. 73°. 50 



ill Tambores 18 11.6. 71 .75 



Differences 1 9.5 1°.75 



12 X 1° 7 

 1.9.5=211.5 : 1°.75::12 -2l"5^=0°97'6 of Reaumur for 12 



lines of barometer. 



The mean of the six quotients is 0.974^ which may be assumed 

 as the exact exponent of 12 Unes of the barometer. 



r 



Given then the heat of boiling water in any place to find the 

 corresponding elevation of the barometer^ and consequently its 

 height above the sea. 



As 0^-974: 12 lines, so is the difference of the heat of B. W. 

 To ascertain at Popayan the number of inches, Knes, &c- of the 

 barometer. Ex. in Tambores, B. W. 71^.15, to find the corres- 

 ponding height of the barometer. 



B. W. in Popayan 75^.65 



in Tambores 71 .75 



3 .90 



3 9 X 12 



0.974 : 12: :-^^^j-= 48^.05 = 4.0.05. 



As Tambores is above Popayan^ deduct this quantity from the 

 height of the barometer in that city. 



Barometer in Popayan 22 11.20 



Deduct 4 00.05 



Remain 18 11.15 ht. of bar. in Tambores. 



Barometrical height observed 18 11.60 

 Do. by calculation of B.W. 18 11.15 



X 



Difference 45 

 a result as exact as can be desired. 



Upon this principle I calculated the elevation of the following 

 eleven places : 



Popayan, Poblason, 



Juntas, Buenavista, 



Paisbamba, Hevradura, 



Sombreros, Pasto, 



Tambores, Q,uito. 



Estrellas, Memoria, ^^c. p. 13. et seq. 



