externally with a fibrous oily substance, which has a sweetish taste, and constitutes the favourite food of these little monkeys, who are no less fond of the internal part of the nut, which contains a substance similar to that found in cocoa-nuts. In several parts of the interior I had been told, that to get at the kernel, the shell being too hard to break with their teeth, the monkeys carry the nuts to a rocky place, and then break them with a stone, and I even met with persons who assured me that they had watched them in such places through the bushes, and actually seen them engaged in this operation. This account, like that of the carrying away of Indian corn, I always considered to be fabulous till I arrived at Sapê. In an excursion we made over the Serra, immediately behind the fazenda, where it is composed of nearly bare, rugged limestone peaks, in several almost inaccessible places we came upon large heaps of the broken shells of nuts, generally on a bare open part of the rock, and along with them a number of roundish pieces of stone, larger than the fist, which had evidently been employed in breaking the shells. These Senhor Lagoeira told me were the places resorted to by the monkeys for the purpose of breaking the nuts collected in the low grounds; and that in his shooting excursions over the mountains, he has frequently seen them take flight on his approach. That they both can, and really do make use of a stone in order to break that which is too hard for their teeth, I have frequently witnessed in a little pet monkey that accompanied me on my journey: I obtained it in Piauhy, and it was the only one of the many tame animals I carried with me, that reached Rio de Janeiro alive; it was a female of the species we are now speaking of, and ultimately became very gentle. Jerry was the favourite with all, and indeed in all respects fared like ourselves; it became so fond of tea, which it drank every morning and evening, that it would not go to sleep without its usual allowance. Its favourite food was farinha, boiled rice, and bananas, but scarcely anything came amiss to it; a raw egg was a choice morsel, and on being given to it, it broke one end by gently knocking it on the floor, and completed the hole by picking off the broken bits of shell, and putting in the point of its long slender finger; throwing back its head, and holding the egg erect between its two hands, it soon contrived to suck out the whole contents. Whenever anything was given to it that was too hard to break with its teeth, it always looked about for a stone, and lifting it with one hand, by repeated blows would attempt to crack it; if unsuccessful by these means, it would try to find a larger stone, which it would hold in both its hands, and, rising erect on its legs, would let it fall, leaping backwards at the same time to avoid any injury to its toes. I have often watched the means it employed to obtain