Juan de Barrios, Verdadera medicina, cirugia y astrologia (Mexico, 1607)

A physician's manual printed in Mexico City in 1607, licensed by the protomedico of New Spain, whose stated purpose is to let people treat themselves in places that have no one to cure them. Its index of remedies is organised by complaint and prescribes Mexican plants under their Nahuatl names, priced in reales; its second book renders the herbs of Francisco Hernandez eight years before the Mexican edition usually credited with it.