ULLOa's voyage to south AMERICA. 



43S 



XXVI. XXVII. XXVm. XXIX. — signals of Pugin, Pillachlquir, Alparupafca, and 



Chinan. 



The two laft being the north and fouth extremities of the bafe of TalquI, the four 

 flations of Pugin, Pillachiquir, 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 

 diilance than that of the other fignals, there was a necellity for our vifiting-; but hap- 

 pily concluding our obfervations the fame day we reached it, there was no rcafon for our 

 longer ftay. 



XXX. XXXI. — Signals of Guanacauri, and the Tower- of the great Church of 



Cuenca. 



The feries of triangles, except the two laft at the extremities of the fecond bafe, being 

 finifiied, it was necefl'ary to form other triangles, in order to fix the place of the obfer- 

 vatory where, when the geometrical obfervations were fmifhed, 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 Cuenca ; and thefe angles were taken at the fame time 

 the aftronomical obfervations were making. 



At the north extremity of the arch of the meridian new triangles were afterwards 

 formed, as we have already obferved in the foregoing chapter. This rendered it necef- 

 fary for us to make choice of different places on thefe mountains for erefting other 

 fignals in order to form thefe triangles. The fame order which had been followed 

 during the whole feries of menfu ration, that each perfon fhould take two angles of every 

 triangle, was obferved here ; and thofe afTigned to me were the following : 



XXXII. XXXIII. XXXIV. XXXV. — Signals on Guapulo, the Monntain of Cam- 



panario, and thofe of Cofm, and Mira. 



The obfervations to be made at thefe four ftations could not be finifhed till thofe 

 alarming reafons which called us to Lima and Chili no longer fubfifted, and we were 

 returned to Quito. The work at the firft and laft ftations was difpatched without the 

 neceffity of lodging there ; for, being near Quito and the village of Mira, when the 

 v/eather promifed us a favourable opportunity, it was only an eafy ride ; but we found 

 it very different with regard to the ftations of Campanario and Cofm. However, we 

 left all the four at the fame time, namely, on the 23d of May 1744; the day when 

 Don George and myfelf put the finifhing hand to the aftronomical obfervations which 

 we had re-affumed on the 14th of Febrt>ary of the fame year ; and thus the whole pro- 

 cefs relative to the menfuration of an arch of the meridian was concluded. 



Signals ere^ed on DeferiSy ^c. where the Obfervations were conduced by Mr. Godin 



and Don George Juan, 



The ftations immediately fubfequent to the admeafurement of the bafe of Yaruqui, 

 in the year 1736, and afterwards not made ufe of, as we have .already obferved, were 

 common to both companies ; the method which was afterwards followed, for every one 

 to obferve two angles in all the triangles, not having been thought of; though it both 

 Ihortened the work, and, at the fame time, rendered it much eafter : {o that Don George 



3 K ^ Juan 



