The extraordinary pains which they took to obtain this had attracted the attention of a man in Minnesota, who told me of it. It required a whole day to obtain a very little of it. The Indians, when asked by curious white people what this was for, said it was for dyeing baskets, but, as my informant observed, the quantity obtained was utterly inadequate to any such purpose, and even better black dyes (e.g., hickory bark and alum) are known to, and can be very easily obtained by, them. The real object was to use the grease in "medicine," i.e., for sorcery. The eagerness of both witches in Europe and Indians in America to obtain such a singular substance is very strange. However, the idea must be a recent one among the Indians, for there were certainly no grindstones among them before the coming of the white men. "For all that I can tell, said he, Is that it is a mystery." Heathens though they be, many gypsies have a superstitious belief in the efficacy of the sacramental bread and wine, and there are many instances of their stealing them for magical purposes. So in the Middle Ages witches and sorcerers used these objects for the most singular purposes, Paulus Grillandus, in his "Tractatus de Hereticis et Sortilegiis," &c. (Lyons, 1547), assuring his readers that he had known a witch who had two holy wafers inscribed with magical characters which she used for debauching innocent girls and betraying them to men, and that it was a belief that if a woman had the sacred oil fresh on her lips no man could refrain from kissing her. This is the union of two kinds of magic; a view which never once occurred to theological writers. And here I may appropriately mention that while the proofs of this work were passing through my hands accident threw into my way an extremely rare work, which illustrates to perfection the identity of popular and ecclesiastical sorcery. This is entitled "De Effectibus Magicis, ac de Nuce Maga Beneventana," "Six Books of Magic Effects and of the Witch Walnut-tree of Benevento. A work necessary, joyous, and useful to Astrologists, Philosophers, Physicians, Exorcists, and Doctors, and Students of Holy Scriptures. By the Chief Physician, Peter Piperno." It appears to have been privately printed at Naples in 1647, and came from a conventual library. It bore, written on a fly-leaf, the word Proibito.