There is a curious fact in connection with the tails of these two animals. Both are almost naked of hair, and covered with "scales," and both are flat. The tail of the beaver, and the uses it makes of this appendage, are things known to every one. Every one has read of its trowel-shape and use, its great breadth, thickness, and weight, and its resemblance to a cricket-bat. The tail of the muskrat is also naked, covered with scales, and compressed or flattened; but instead of being horizontally so, as with the beaver, it is the reverse; and the thin edges are in a vertical plane. The tail of the former, moreover, is not of the trowel-shape, but tapers like that of the common rat. Indeed, its resemblance to the house-rat is so great as to render it a somewhat disagreeable object to look upon. Tail and all, the muskrat is about twenty inches in length; and its body is about half as big as that of a beaver. It possesses a strange power of contracting its body, so as to make it appear about half its natural size, and to enable it to pass through a chink that animals of much smaller dimensions could not enter. Its colour is reddish-brown above, and light-ash underneath. There are eccentricities, however, in this respect. Specimens have been found quite black, as also mixed and pure white. The fur is a soft, thick down, resembling that of the beaver, but not quite so fine. There are long rigid hairs, red-coloured, that overtop the fur; and these are also sparely scattered over the tail. The habits of the muskrat are singular--perhaps not less so than those of his "cousin" the beaver, when you strip the history of the latter of its many exaggerations. Indeed the former animal, in the domesticated state, exhibits much greater intelligence than the latter. Like the beaver, it is a water animal, and is only found where water exists; never among the dry hills. Its "range" extends over the whole continent of North America, wherever "grass grows and water runs." It is most probable it is an inhabitant of the Southern Continent, but the natural history of that country is still but half told. Unlike the beaver, the race of the muskrat is not likely soon to become extinct. The beaver is now found in America, only in the remotest parts of the uninhabited wilderness. Although formerly an inhabitant of the Atlantic States, his presence there is now unknown; or, if occasionally met with, it is no longer in the beaver dam, with its cluster of social domes, but only as a solitary creature, a "terrier beaver," ill-featured, shaggy in coat, and stunted in growth. The muskrat, on the contrary, still frequents the settlements. There is hardly a creek, pond, or watercourse, without one or more families having an abode upon its banks. Part of the year the muskrat is a social animal; at other seasons it is solitary. The male differs but little from the female, though he is somewhat larger, and better furred.