Alonso de Sandoval, Naturaleza, policia sagrada i profana... de todos Etiopes (Seville, 1627)

The book in which a Jesuit at Cartagena de Indias set down, in print and in Spanish, what the Atlantic slave trade did to the people carried in it: the chains, the closed hatches, one bowl of meal a day, a third dead on the crossing, twelve or fourteen shiploads a year into one port. It also prints, in full, the letter from a fellow Jesuit at Luanda telling him not to ask the captives whether they had been lawfully taken.