In all animals each species differs according to the difference of climate, and the general result of this variety forms and constitutes the different races. Of these we can only particularize the most remarkable, which differ greatly from each other, passing the intermediate shades, which here, as in every thing else, are infinite. We have even augmented the number and confusion, by favouring the mixture of these breeds; and we may be said to have almost inverted Nature by bringing into these climates the horses of Africa or Asia, and have so much raised the primitive race of France, by introducing horses of all countries, that they are not now to be known, there only remaining some slight traces, produced by the actual influence of the climate. These traces would be much stronger, and the differences would be much greater, if the race of each climate were preserved without mixture; the small differences would be less shaded, and fewer in number; but there would be a certain number of great varieties, that all mankind might easily distinguish; instead of which, custom, and even a long experience, are at present necessary to know the horses of different countries. On this subject we have only the knowledge drawn from the accounts of different travellers, and the ablest riding-masters, such as Newcastle, Garsault, Guerinere, &c. and from some remarks that Pignerolles, Master of Horse to the King of France, and President of the Academy of Angers, has communicated. The Arabian horses are the handsomest known in Europe, they are larger and more plump than those of Barbary, and equally well shaped, but as they are not often brought into France, few observations have been made on their perfections or defects.