SIR,--I had the honor of informing you, some time ago, that I had written to some of my friends in America, desiring they would send me such of the spoils of the moose, caribou, elk and deer, as might throw light on that class of animals; but more particularly, to send me the complete skeleton, skin and horns of the moose, in such condition as that the skin might be sewed up and stuffed, on its arrival here. I am happy to be able to present to you at this moment, the bones and skin of a moose, the horns of another individual of the same species, the horns of the caribou, the elk, the deer, the spiked horned buck, and the roebuck of America. They all come from New Hampshire and Massachusetts, and were received by me yesterday. I give you their popular names, as it rests with yourself to decide their real names. The skin of the moose was dressed with the hair on, but a great deal of it has come off, and the rest is ready to drop off. The horns of the elk are remarkably small. I have certainly seen some of them which would have weighed five or six times as much. This is the animal which we call elk in the southern parts of America, and of which I have given some description in the Notes on Virginia, of which I had the honor of presenting you a copy. I really doubt whether the flat-horned elk exists in America; and I think this may be properly classed with the elk, the principal difference being in the horns. I have seen the daim, the cerf, the chevreuil of Europe. But the animal we call elk, and which may be distinguished as the round-horned elk, is very different from them. I have never seen the brand-hirtz or cerf d'Ardennes, nor the European elk. Could I get a sight of them, I think I should be able to say which of them the American elk resembles most, as I am tolerably well acquainted with that animal. I must observe also, that the horns of the deer, which accompany these spoils, are not of the fifth or sixth part of the weight of some that I have seen. This individual has been of three years of age, according to our method of judging. I have taken measures, particularly, to be furnished with large horns of our elk and our deer, and therefore beg of you not to consider those now sent, as furnishing a specimen of their ordinary size. I really suspect you will find that the moose, the round-horned elk, and the American deer, are species not existing in Europe. The moose is, perhaps, of a new class. I wish these spoils, Sir, may have the merit of adding anything new to the treasures of nature, which have so fortunately come under your observation, and of which she seems to have given you the key: they will in that case be some gratification to you, which it will always be pleasing to me to have procured; having the honor to be, with sentiments of the most perfect esteem and respect, Sir, your most obedient, and most humble servant. TO MR. DUMAS. PARIS, October 4, 1787.