The Writings of Thomas Jefferson, Vol. 8 · Thomas Jefferson
[22] XIX. 2.
It has abounded in Virginia, has been seen, within my knowledge, on the eastern side of the Blue Ridge since the year 1765, is now common beyond those mountains, has been often brought to us and tamed, and its horns are in the hands of many. I should designate it as the "Alces Americanus cornibus teretibus." It were to be wished, that naturalists, who are acquainted with the renne and elk of Europe, and who may hereafter visit the northern parts of America, would examine well the animals called there by the names of gray and black moose, caribou, original and elk. Monsieur de Buffon has done what could be done from the materials in his hands, toward clearing up the confusion introduced by the loose application of these names among the animals they are meant to designate. He reduces the whole to the renne and flat-horned elk. From all the information I have been able to collect, I strongly suspect they will be found to cover three, if not four distinct species of animals. I have seen skins of a moose, and of the caribou: they differ more from each other, and from that of the round-horned elk, than I ever saw two skins differ which belonged to different individuals of any wild species. These differences are in the color, length, and coarseness of the hair, and in the size, texture, and marks of the skin. Perhaps it will be found that there is, 1, the moose, black and gray, the former being said to be the male, and the latter the female; 2, the caribou or renne; 3, the flat-horned elk, or original; 4, the round-horned elk. Should this last, though possessing so nearly the characters of the elk, be found to be the same with the Cerf d'Ardennes or Brandhitz of Germany, still there will remain the three species first enumerated.
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