Note 31 — Chapter VIII · SURVEYS AND DISCOVERIES IN THE INTERIOR.

Although in the copy of Crux's MS. in my possession, as well as in Señor de Angelis's collection, the name of this river is written Cobu-leubú; I suspect it to be an erroneous writing for Colu-leubú, which signifies the great river. I believe this the more, as I find that people who have journeyed south from Mendoza speak of it (at least of what I suppose to be the upper part of the same river) as the Rio Grande.