570 



observations of M.M. Espinosa and Ban- 

 za *, forms so projecting a point, that 

 there remains (lat. 31°-32°) a plain only 45 

 leagues broad between the eastern extremity 

 of the Sierra de Cordova and the right bank 

 of the river Paraguay, stretching in the di- 

 rection of a meridian, from the town of Nu- 

 eva Coimbra to Rosario, below Santa Fe. 

 Far beyond the southern frontiers of the an- 

 cient viceroyalty of Buenos Ayres, between 

 the Rio Colorado and the Rio Negro (lat. 

 38°-39°) groupes of mountains seem to rise in 

 the form of islands, in the middle of a muri- 

 atiferous plain. A tribe of Indians of the 

 south (Tehuellet), have there long borne 



- The officers of the Spanish marine quitted the expedi- 

 tion of Malaspina at Lima to rejoin it at Buenos Ayres. 

 They determined the latitude and longitude of Mendoza 

 (lat. 32° 52' j long. 71° 23') and S. Luis de la Punto (lat. 

 33<> 18' ; long. 68° 4'). Memorias de los Navegantes, Vol. i, 

 Appendix, p. 181). We find the town of Cordova, according 

 to those positions, to be lat. 31<>22'; long. 66° 17'; ad- 

 mitting with M. Bauza, according to the Map of the south- 

 ern Ocean comprehended between Cape Horn and the Cape of 

 Good Hope, (Madrid, 1804,) the town of Cordova to be 1° 

 47' the east of San Luis de la Punta, La Cruz, and Arrow- 

 smith supposed this distance to be 3° 20' and 3° 4'. M. 

 Bauza, who has visited that country, admits the difference of 

 longitude of Cordova and Santa Fe to be 3°, while Arrow- 

 smith makes 2° 36'. Observations are wanting between 

 Tucuman, Asuncion, and Santa Fe. 



t Het, man ; tehuel, noon. 



