them pain, though they be ever so much affected by it. I have already observed that they seldom grow bald, and not grey till at an advanced period of life. Even when arrived at extreme age they can hardly be said to have grown old, like certain plants which are always green and vigorous. Cicero, in his treatise on Old Age, bestows great praise on Massinissa, king of Mauritania, who, at ninety years of age, _cùm ingressus iter pedibus sit, in equum omninò non ascendit: cùm equo, ex equo non descendit. Nullo imbre, nullo frigore adducitur, ut capite operto sit. Exequitur omnia regis officia et munera, etc._ The Roman orator would find all the old Abipones so many Massinissas, or even more vigorous than Massinissa. He would scarce believe his own eyes were he to see men, almost a hundred years old, leap on to a fiery horse, without the aid of a stirrup, like a boy of twelve years old, sit it for hours, and even whole days, beneath a burning sun, climb trees for honey, travel or lie upon the ground in cold or rainy weather, contend with the enemy in battle, shrink from no toils of the army or the chase, evince wonderful acuteness both of sight and hearing, preserve all their teeth quite sound, and seem only to be distinguished by the number of their years from men in the prime of life. All these things will hardly be credited in Europe where they are so rare. In the colonies of the Abipones I daily beheld old men, like youths in every other respect but that of age, without surprize. If a man dies at eighty he is lamented as if cut off in the flower of his age. Women generally live longer than men, because they are not killed in war, and because the moistness of their nature renders them more long lived. You find so many old women a hundred years of age, amongst the Abipones, that you may wonder at, but will scarce be able to count them. I cannot say that the pedestrian nations of Paraguay enjoy equal strength and longevity. The Guaranies, Lules, Isistines, Vilelas, and other pedestrian Indians, are subject to diseases like the Europeans, and both feel old age, and discover it by their habit of body. Their lives, like those of Europeans, are sometimes short, sometimes long. You find very few men a hundred years old, or even approaching to that age amongst them. It is worth while to investigate the causes of this exceeding vigour of the Abipones. CHAPTER VII. WHY THE ABIPONES ARE SO VIGOROUS AND LONG-LIVED.