We are told by these that, besides the beavers who live in societies, there are others which lead a life of solitude; having been rejected from the body, for being guilty of some crime against it, and therefore are not allowed to partake of its advantages; they have neither house nor magazine, and are forced to live, like the badger, in holes under ground. They are easily distinguished, from their coats being always dirty, and their hair rubbed off by the friction of the earth. Like the otters they inhabit the edge of rivers, where some of them dig a ditch several feet deep, in order to make a pond that may reach to the mouth of their hole, which has an internal ascent; there are, however, others which live at a considerable distance from the water. All the European beavers are solitary, and their fur is by no means so fine as that of those who live in society. They differ in colour according to the climate they inhabit. In the northern countries they are black, and those are the finest, although among those there are some found entirely white, some grey, and others with red spots. The further they are removed from the north the more bright and varied we find their colour. In the north part of Canada they are chesnut, and among the Illinois they are yellow, or olive-coloured. There are beavers in America from the 30th degree of north latitude to beyond the 60th. They are common in the north part, and gradually decrease towards the south. This is also the case in the Old Continent; we never find them numerous except in the northern countries; in France, Spain, Italy, Greece, and Egypt, they are very rare. They were known to the ancients, and by the religion of the Magi it was forbidden to kill them. Upon the borders of the Euxine sea they were common, and were called _canes pontici_; but it is probable they did not enjoy much tranquillity in the neighbourhood of this sea, (which from the earliest time has been frequented by mankind) since none of the ancients speak either of their society or labours. Ælian, in particular, who had such a propensity to the marvellous, and who I believe was the first who mentioned their dismembering themselves to delay the hunters, would never have omitted enlarging on the wonders of their republic, and genius for architecture. Would Pliny, whose bold, gloomy, and sublime genius was always bent upon degrading man to exalt Nature; would he have forborne to have compared the labours of Romulus with those of the beavers? It seems, therefore, that their industry, and talents for building were unknown to the ancients; and although in latter ages, beavers have been found in Norway, and other northern parts of Europe, with habitations of their own construction; and though there be no reason to doubt the ancient beavers did not build as well as the modern, yet as the Romans did not penetrate so far north, it is not surprising they should have been unnoticed by their writers.