raldas. Their height, both above the plain of 

 Quito and the seacoast, was trigonometrically 

 measured by Bouguer ; and the French acade- 

 micians determined, by the difference of height 

 obtained in these two measurements, the abso- 

 lute height of the city of Quito, and the ap- 

 proximative value of the barometric coefficient. 

 Those natural philosophers, who interest them- 

 selves in the history of. the progress of the 

 Sciences, will rank the name of Ilinissa with that 

 of the Puy-de-dome, where Perrier, following 

 the advice of Pascal, attempted first to measure 

 the height of mountains by the aid of a baro- 

 meter. 



