In the history of each domestic animal we have seen to what a degree the education, protection, and care of man, influence its disposition, manners, and even form. We have seen that these causes, added to the effects of climate, modify and change the species so as to render them very different from what they originally were, whence is occasioned such a dissimilarity among the individuals of the same species that we should be led to consider them as different animals, did they not produce together fertile individuals, which is the sole essential characteristic of every species. We have seen that the different races of domestic animals observe nearly the same order in the different climates with the human race; that like men they are more strong and courageous in cold countries, more civilized and mild in temperate ones, and more dastardly, feeble, ugly, and deformed, in the hot regions; that moreover it is in temperate climates, and among the most civilized nations, that the greatest diversity, mixture, and numerous varieties of each species are found; it is among them also that animals exhibit evident signs of the antiquity of their servitude; their pendant ears, their varied colours, their long and delicate hair, are so many effects produced by the length of time they have been in a domestic state. Of almost all wild animals the ears are erect. Those of the wild boar are erect and stiff, but those of the domestic hog are inclined and half pendant. Among the Laplanders, the savages of America, the Hottentots, the Negroes, and other uncivilized people, all the dogs have erect ears; whereas in Spain, France, England, Turkey, Persia, China, and all other civilized countries, the generality of them have soft and pendant ears. The ears of the tame cat are not so stiff as those of the wild one; and in China, which is an empire of very ancient civilization, and whose climate is very mild, there are cats with pendulous ears. It is for the same reason that the goat of Angora, whose ears are pendant, should be considered as the animal of his species the furthest removed from his natural state; the influence so evident of the climate of Syria, added to the domestic state of these animals among a people civilized from great antiquity, would in process of time have produced this variety, which cannot be maintained in any other climate. The goats of Angora brought forth in France, have their ears neither so long nor so pendant as those produced in Syria, and would, probably, after a certain number of generations, assume the ears and hair of the goats of our country. SUPPLEMENT.