But it is to the moral and intellectual faculties of the Dog that we must look for those remarkable peculiarities which distinguish him in so eminent a degree not only from his immediate neighbours, but also from every other quadruped. Unfortunately we have not the means of comparing him in a pure state of nature with the other animals of his tribe; for although it has been repeatedly attempted to determine his primitive stock, there can be no doubt that upon this point we are still as much as ever in the dark. There exist, however, in various parts of the world, considerable numbers of Dogs, the descendants unquestionably of races formerly domesticated, which, to all appearance, differ but little in their habits and manners from the Wolf and the Jackal, to one or other of which they frequently approach in form, and from each of which it has been confidently asserted that the domestic species was primarily derived. But the doubts to which this striking similarity might otherwise give rise are instantly removed by the readiness with which these wild Dogs submit to the control of man, and become familiarized with that state of servitude to which nature appears to have destined them from the first. Other animals may indeed be tamed; they may become playful, familiar, and even affectionate; but none of them have hitherto been taught, even by long-continued training, to exhibit qualities of mind in any degree comparable to the absolute subserviency, the undeviating attachment, the submissive docility, and the acute intelligence, which these invaluable animals almost spontaneously manifest, when placed in circumstances favourable to their developement. So much has been written by authors of every description, from the earliest ages down to the present time, upon every point connected with their history and habits, and the space which we could devote to their illustration in the present volume is so small, that we choose rather not to enter at all upon the subject than to treat of it in the very abrupt and imperfect manner to which we should necessarily be restricted. It only remains therefore to add a few observations relative to the extremely beautiful leash of hounds which are figured at the head of the present article, before passing to the consideration of the remaining species of the group which are at present contained in the Menagerie.