10. The beaver of this country is large and fat: the flesh is very palatable, and at our table was a real luxury. On the 7th of January, 1806, our hunter found a beaver in his traps, of which he made a bait for taking others: this bait will entice the beaver to the trap, as far as he can smell it, and this may be fairly stated to be at the distance of a mile, as their sense of smelling is very acute. To prepare beaver bate, the castor or bark stone is first gently pressed from the bladder-like bag which contains it, into a phial of four ounces, with a large mouth: five or six of these stones are thus taken, to which must be added a nutmeg, a dozen or fifteen cloves, and thirty grains of cinnamon, finely pulverized and stirred together, and as much ardent spirits added to the composition as will reduce the whole to the consistency of mustard. All this must be carefully corked, as it soon loses its efficacy if exposed to open air. The scent becomes much stronger in four or five days after preparation, and, provided proper precaution is exercised, will preserve its efficacy for months. Any strong aromatic spices will answer; their sole virtue being to give variety and pungency to the scent of the bark stone. The male beaver has six stones, two of which contain a substance much like finely pulverized bark, of a pale yellow colour, and in smell resembling tanners oose; these are called bark stones or castors. Two others, which like the bark stone resemble small bladders, contain pure strong oil, of a strong rank smell, and are called the oil stone, and the other two are the testicles. The bark stones are two inches in length: the others are somewhat smaller, of an oval form, and lie in a bunch together, between the skin and the root of the tail, with which they are closely connected, and seem to communicate. The female brings forth once in a year only, and has sometimes two and sometimes four at a birth, which usually happens in the latter end of May and the beginning of June: at this time she is said to drive the male from the lodge, who would otherwise destroy the young. They propagate like the fowl, by the gut, and the male has no other sexual distinction that we could discover.

11. The common otter has already been described, and this species does not differ from those inhabiting the other parts of America.

12. The sea-otter resides only on the seacoast, or in the neighbourhood of the salt water. When fully grown, he arrives to the size of a large mastiff dog. The ears and eyes, particularly the former, which are not an inch in length, are thick, pointed, fleshy, and covered with short hair: the tail is ten inches long, thick at the point of insertion and partially covered with a deep fur on the upper side: the legs are very short, and the feet, which have five toes each, are broad, large, and webbed: the legs are covered with fur, and the feet with short hair: the body of this animal is long, and of the same thickness throughout: from the extremity of the tail to the nose they measure five feet. The colour is a uniform dark brown, and, when in good order and season, perfectly black. This animal is unrivalled for the beauty, richness, and softness of his fur; the inner part of the fur, when opened, is lighter than the surface in its natural position: there are some black and shining hairs intermixed with the fur, which are rather longer, and add much to its beauty: the fur about the ears, nose and eyes, in some of this species, presents a lighter colour, sometimes a brown: their young are often seen of a cream-coloured white about the nose, eyes and forehead, and which are always much lighter than their other parts: their fur is however much inferior to that of the full grown otter.

13. The mink inhabits the woody country bordering on the coast, and does not differ in any point from those of the United States.

14. The seal are found on this coast in great numbers, and as far up the Columbia river as the Great Falls, and none have been discovered beyond them. The skins of such as captain Lewis examined, were covered with a short, coarse, stiff, and glossy hair, of a reddish brown colour. This animal, when in the water, appeared of a black colour, and sometimes spotted with white. We believe that there are several species of this animal to be found in this country, but we could not procure a sufficient number to make the examination: the skins were precisely of the same kind as our countrymen employ in the manufacture of trunks.

15. The raccoon inhabits woody countries bordering on the coast, in considerable numbers, and are caught by the natives with snares or pitfalls: they hold their skins in but little or no estimation, and very seldom make them into robes.

16. The squirrels we have seen, are,

The large gray squirrel. This animal appears to be an inhabitant of a narrow tract of country, well covered with whiteoak timber, and situated on the upper side of the mountains just below Columbia falls. This animal we have only found in those tracts which have been covered with timber; for in countries where pine is most abundant, he does not appear: he is much superior in size to the common gray squirrel, and resembles in form, colour and size, the fox squirrel of the Atlantic states: the tail exceeds the whole length of the body and the head; the eyes are dark, the whiskers long and black: the back sides of the head and tail, and outward part of the legs, are all of a blue-coloured gray: the breast, belly, and inner part of the body, are all of a pure white: the hair is short, like that of the fox squirrel, though much finer, and intermixed with a portion of fur. The natives hold the skin of this animal in high estimation, which they use in forming their robes. He subsists on the acorn and filberts, which last grows in great abundance in the oak country.

The small gray squirrel is common to every part of the Rocky mountains where timber abounds. He differs from the dark brown squirrel in colour only. The back sides, neck, head, tail and outer side of the legs, are of a brownish lead-coloured gray: the tail is slightly touched with a dark reddish colour, near the extremity of some of the hairs: the throat, breast, belly, and inner parts of the legs, are of the colour of a tanners’ ooze, and have a narrow strip of black, commencing behind each shoulder, and entering longitudinally about three inches, between the colours of the sides and belly. Their habits are precisely those of the dark brown squirrel, and like them they are extremely nimble and active.

There is also a species of squirrel, evidently distinct, which we have denominated the burrowing squirrel. He inhabits these plains, and somewhat resembles those found on the Missouri: he measures one foot and five inches in length, of which the tail comprises two and a half inches only: the neck and legs are short; the ears are likewise short, obtusely pointed, and lie close to the head, and the aperture larger than will generally be found among burrowing animals. The eyes are of a moderate size, the pupil black, and the iris of a dark sooty brown: the whiskers are full, long, and black: the teeth, and, indeed, the whole contour, resemble those of the squirrel: each foot has five toes; the two inner ones of the fore feet are remarkably short, and are equipped with blunt nails: the remaining toes on the front feet are long, black, slightly curved, and sharply pointed: the hair of the tail is thickly inserted on the sides only, which gives it a flat appearance, and a long oval form: the tips of the hair forming the outer edges of the tail are white, the other extremity of a fox red: the under part of the tail resembles an iron gray; the upper is of a reddish brown: the lower part of the jaws, the under part of the neck, legs and feet, from the body and belly downwards, are of a light brick red: the nose and eyes are of a darker shade, of the same colour: the upper part of the head, neck and body, are of a curious brown gray, with a slight tinge of brick red: the longer hairs of these parts are of a reddish white colour, at their extremities, and falling together, give this animal a speckled appearance. These animals form in large companies, like those on the Missouri, occupying with their burrows sometimes two hundred acres of land: the burrows are separate, and each possesses, perhaps, ten or twelve of these inhabitants. There is a little mound in front of the hole, formed of the earth thrown out of the burrow, and frequently there are three or four distinct holes, forming one burrow, with these entrances around the base of these little mounds. These mounds, sometimes about two feet in height and four in diameter, are occupied as watch-towers by the inhabitants of these little communities. The squirrels, one or more, are irregularly distributed on the tract they thus occupy, at the distance of ten, twenty, or sometimes from thirty to forty yards. When any one approaches, they make a shrill whistling sound, somewhat resembling tweet, tweet, tweet, the signal for their party to take the alarm, and to retire into their intrenchments. They feed on the roots of grass, &c.