Book excerpt: In Science in the Vanished Miguel de Asúa provides the first modern comprehensive account of Jesuit science in the missions of Paraguay and the River Plate region during the 17th and 18th centuries. Focusing on individual Jesuits and underlining the relationships of their work to the religious goals of the Society of Jesus, the book covers the disciplines of natural history, cartography, medical botany, astronomy and the topics pursued by the former missionaries in their Italian exile. Based on many so far unexplored manuscripts and a vast corpus of primary sources, the book argues the existence of a tradition of research on nature consistent with universal Jesuit science and at the same time original in its articulation of Western learning and aboriginal lore on nature.