But as Nature always proceeds in a regular and gradual manner, never leaving any chasms, we meet with an intermediate species between the baboon and monkey, like that of the magot between the ape and the baboon. The animal which fills up this interval, greatly resembles the monkey, especially the macaque, but it has a broad muzzle, and short tail, like the baboon. Being ignorant of its proper name, we have called it the _maimon_, to distinguish it from other animals of this kind. It is a native of Sumatra, and is the only animal, as well among the baboon as the monkey species, that has no hair on its tail; and upon that account it has been described by the denomination of the _pig-tailed_ or _rat-tailed ape_. Thus we have enumerated all the animals of the old continent, to which the common name of ape has been given, though they are not only of very distant species, but even of very different genera. But what has completed the error and confusion in the arrangement of these animals is, that the names of _ape_, _cynocephalus_, _kébos_, _cercopithecos_, which were invented by the Greeks fifteen hundred years ago, have been given to animals of the new continent, which have been discovered within these two or three centuries. They knew not that the animals of Africa and of the East Indies, were not to be found in the southern parts of the new continent. Animals have been found in America with hands and fingers, and this character alone was thought sufficient to give them the appellation of apes, without considering that for transferring a name it was requisite that the animals should be of the same genus, and to apply it justly, of the same identical species. Now the animals of America, of which we shall form two classes, by the names of _sapajous_ and _sagoins_, are very different from all the monkeys of Asia and Africa; and in the same manner as there are neither apes, monkeys, nor baboons, to be found in the new continent, so likewise there are neither the sapajous nor sagoins to be found in the old. Though we have already mentioned these facts in general, in our dissertation concerning the animals of the two continents, we can here prove it in a more particular manner, and demonstrate, that of seventeen species, to which number we may reduce all the ape species in the old continent, and of twelve or thirteen, to which this name of ape has been transferred in the new, there is not any of them alike, or to be found in both continents, for of the seventeen in the old we must first retrench three or four of the apes, who do not exist in America, and to whom the sapajous and the sagoins have no resemblance. Secondly, we must also retrench three or four of the baboons, which are much larger than the sagoins or the sapajous, and also of a very different form; there remains, therefore, only nine monkeys of the old continent with whom any comparison can be made. Now this species of monkeys, as