Livestock of Castile in Peru: the dates, the prices and who was kept off the horse

The animal chapters of libro nono of the Comentarios Reales carry something no later account reproduces: a running price series for Old World livestock in Peru between 1544 and 1590, taken down by a witness who was in Cuzco. Cattle fall from 120 ducats a head to six or seven. A donkey worth six ducats in Spain fetches 480 at Huamanga. And the same chapters record that no Indian rode, and what the Indians said when they first saw a plough.