O
Ojeda, Alonza de, [3]; heads first important expedition along South American coast, [4]; second voyage, [5]; arrives at Santo Domingo, [8]; adventures of, [10-19]; referred to, [55]
Olano, Lope de, [21], [22], [24]
Ordaz, [144]
Orellano, commander under Gonzalo Pizarro, [105]
Orinoco, the, [4]
Otumba, valley of, [191]
Otumies, tribe of, [141]
Ovando, an explorer with Nicuesa, [7]