Piedra bezar de las Indias — the Andean bezoar stone

Concretions from Andean camelids entered a drug category the Old World already had, and two Seville printings record the transfer. Acosta names the animals, writes the Indians' causal theory down as theirs, then puts a counter-question to them. Monardes prints a section "Delas piedras Bezaares del Peru", a correspondent's dissection with a woodcut, a market where one Oriental stone in ten is genuine — and a four-patient comparison from a German plague hospital.