The jockeys have an expression which, if this system be true, is the most senseless imaginable: I have heard it often said, Such a Horse has speed enough if his heart do but lie in the right place. In answer to this, let us consider a Horse as a piece of animated machinery (for it is in reality no other); let us set this piece of machinery going, and strain the works of it; if the works are are** not analogous to each other, will not the weakest give way? and when that happens, will not the whole be out of tune? But if we suppose a piece of machinery, whose works bear a true proportion and analogy to each other, these will bear a greater stress, will act with greater force, more regularity and continuance of time. If it be objected, that foreign Horses seldom race themselves, and therefore it must be in the blood, I think nothing more easily answered; for we seldom see any of these Horses sent us from abroad, especially from Arabia, but what are more or less disproportioned, crooked, and deformed in some part or other; and when we see this deformity of shape, can we any longer wonder at their inability of racing: add to this, many of them are perhaps full-aged before they arrive in this kingdom; whereas, it is generally understood, that a proper training from his youth is necessary to form a good racer. But be this as it will, let us consider how it happens, that these awkward, cross-shaped, disproportioned Horses, seemingly contrary to the laws of nature, beget Horses of much finer shapes than themselves, as we daily see produced in this Kingdom. And here I acknowledge myself to have been long at a loss how to account for this seeming difficulty. I have been often conversant with travelers, concerning the nature and breed of these Horses; few of whom could give any account of the matter, from having had no taste therein, or any delight in that animal: but, at length, I became acquainted with a gentleman of undoubted veracity; whose word may be relied on, whose taste and judgment in Horses inferior to no man's.