a Spanish missionary and explorer. He was admitted a Jesuit in 1612, and afterwards sent on mission work to Chile and Peru, where he became rector of the college of Cuenca. In 1639 he accompanied Pedro Teixeira in his second exploration of the Amazon, in order to take scientific observations, and draw up a report for the Spanish government. His Nuevo Descubrimiento del Gran Río de las Amazonas was published at Madrid in 1641; French and English translations (the latter from the French), appeared in 1682 and 1698.
