. A System of natural history : containing scientifci [sic] and popular descriptions of man, quadrupeds, birds, fishes, reptiles and insects . ich produces it will, perhaps, at length be exterminated. At onesale, the Hudsons Bay company sold about fifty-four thousand; and, in1798, a hundred and six thousand were exported to Europe and China fromCanada alone. In the year 1743, the imports of beaver skins into Londonand Rochelle, amounted to upwards of one hundred and fifty thousand ; andthere is reason to suppose that a considerable additional quantity was atthat period introduced illicitly int
. A System of natural history : containing scientifci [sic] and popular descriptions of man, quadrupeds, birds, fishes, reptiles and insects . ich produces it will, perhaps, at length be exterminated. At onesale, the Hudsons Bay company sold about fifty-four thousand; and, in1798, a hundred and six thousand were exported to Europe and China fromCanada alone. In the year 1743, the imports of beaver skins into Londonand Rochelle, amounted to upwards of one hundred and fifty thousand ; andthere is reason to suppose that a considerable additional quantity was atthat period introduced illicitly into Great Britain. In 1827, the importationof beaver skins into London for more than four times the extent of furcountry than that which was occupied in 1743, did not much exceed fiftythousand. The senses of the beaver are very acute; and so delicate is its smell, thatit will suffer no filth, no bad stench, to remain near it. When kept too longin confinement, and under the necessity of voiding its excrement, it drops itnear the threshold of its prison, and when the door is opened, is sure topush it out. THE ONDATRA, MUSQUASH, OR MUSKRAT.^. This animal is closely allied in form and habits to the beaver, and isfound in the same parts of America as that animal, from thirty to sixty-nineor seventy degrees of latitude. But it is more familiar in its habits, as it isto be found only a short distance from large towns. The musquash is aAvatchful, but not a very shy animal. It may be frequently seen sitting onthe shores of small muddy islands, not easily to be distinguished from apiece of earth, till, on the approach of danger, it suddenly plunges into thewater. It forms burrows on the banks ofstreams and ponds, the entranceto which is in deep water. These burrows extend to great distances, anddo extensive injury to farms, by letting in the water upon the land. f(&f?-^fferf/nciis, Desm. The s:enus Fiber has two upper and two lower incisors;six upper and six lower molars. Molars with a fla
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