 San Agustín Church and Monastery in Manila became the centre of Augustinian efforts to evangelise the Philippines.Herrera wrote a poetical life of Jesus in the Tagalog language in 1639.Cipriano Navarro's important work on "The Inhabitants of the Philippines" and a monumental work in six volumes entitled "La Flora de Filipinas" (Madrid, 1877– ) are valuable contributions to literature and learning on the Philippines.