238 



A VOYAGE TO 



Book V. 



XXVI. XXVII. XXVIII. XXIX. Signals of Pugin, 

 Pillachiquir, Alparupafca, and Chinan. 



The two lad being the north and fouth extremities 

 of the bafe of Taiqiii, the four ftations of Pugin, Pil- 

 lachiquir, Alparupafca, and Chinan, did not require 

 our attendance ; for being near the bafe of Talqui, 

 we daily went from the farm-houfes where we lodged, 

 and obferved the angles, except that of Pillachiquir, 

 to which, on account of its greater diftance than that 

 of the other fignals, there v/as a neceflity for our vi- 

 fiting ; but happily concluding our obfervations the 

 fame day we reached it, there was no reafon for our 

 longer ftay. 



XXX. XXXI. Signals of Guanacauri, and the tower 

 of the great church of Cuen^a. 



The feries of triangles, except the two lafir at the 

 extremities of the fecond bafe, being nnifhed, it was 

 necellary to form other triangles, in order to fix the 

 place of the obfervatory, where, when the geometrical 

 obfervations w^ere fmiflieda the aftronomical were to 

 begin. Thofe which fell to my lot, were a fignal on 

 the mountain of Guanacauri, and the tower of the 

 great church of Cuenga ; andthefe angles v/ere taken 

 at the fame time the aftronomical obfcrvatioiis were 

 making. 



At the north extremity of the arch of the miCridian 

 new triangles were afterwards formed, as we have al- 

 ready obierved in the foregoing chapter. This ren- 

 dered it necelTary for us- to make choice of different 

 places on thefe mountains for ereding other fignals in 

 order to form thefe triangles. 1 he lame order which 

 had been followed during the whole feries of men- 

 furation, that each perfon fnould take two angles of 

 every triangle, was obferved here ; and thofe affigned 

 to me were the followinp-, 



/; ^ XXXIL 



