wound soon heals, a little gap in the flesh remaining like a scar. The Indian doubted not to attribute his recovery to tiger's fat, which I prescribed for other persons with equal success. You shall now hear a still more singular fact. That rattle which a certain poisonous serpent has annexed to its tail, is a noble medicine: for when reduced to powder, and placed on hollow teeth, it softens them so that they fall out of themselves without any sense of pain. It is also useful in other complaints. In order to obtain a knowledge of the nature of diseases, and of medicinal herbs, we diligently studied the books of physicians and herbalists; by which means, as we often were of service to the sick, we wrought so far with the Abipones, that whenever they were seized with any disorder they placed all their hopes on our assistance, to the neglect of their jugglers. When I distrusted myself and felt anxious for the life of my patient, I never rashly prescribed any medicine. To defend him from the injuries of the air, and to prevent him from eating or drinking any thing improper in his situation, was my chief care. I afforded him as much wholesome food as I could, from my own provisions. If these regulations were of no avail, I gave him a medicine that had been tried by long use, and which, if it did no good, could at any rate do no harm. The savages, won by our courtesy and kindness, suffered themselves to be baptized; for at first, whenever they fell sick, the dread of baptism induced them to fly to the lurking-holes of the woods, or cause others to carry them there. During the latter years, almost all of them reposed the greatest confidence in us, and entertained the utmost good-will towards us, and if they remembered our having ever cured them with any medicine, desired to have it given to their hordesmen when they fell ill. From one instance you may judge of others. In the northern parts of Paraguay there grows a nut, called _Piñon del Paraguay_ by the Spaniards, and by physicians _nux cathartica_, because it causes both vomiting and purging. It ridiculously deceived the first Spaniards who visited Paraguay. Delighted with its sweetness they eagerly ate this fruit, and to the great amusement of all, found what they had taken for food to be a medicine, which attacks the human body with double arms, and expels noxious or superfluous humours by two ways. We gave three or four of these nuts to the Abipones, for whom we thought purging necessary, and they all received great benefit from the use of them. Hence, whenever they felt any weight on their stomachs, they asked us for this medicine of their own accord. The same was the case with regard to other remedies. The old women, who obstinately adhered to former customs, raved when they found their medicines laughed at, and the fountain of their gains dried up. The jugglers, who had sucked the bodies, and drained the property of the sick, were despised by their countrymen as a set of worthless drones.