and Judge Edwards. It was to be called Inquiry into the Law of Affinities, by Philomopsos: when, unluckily for my treatise, I arrived at the knowledge of a fact which, though it did not render the treatise less curious, knocked on the head the theory upon which it was based. The baptismal name of the old soldier, Mop's first proprietor and earliest preceptor, was Isaac; and his master being called in the homely household by that Christian name, the sound had entered into Mop's youngest and most endeared associations. His canine affections had done much towards ripening his scholastic education. "Where is Isaac?" "Call Isaac!" "Fetch Isaac his hat," etc. Stilled was that name when the old soldier died; but when heard again, Mop's heart was moved, and in missing the old master, he felt more at home with the new. As for the title, "Sir," it was a mere expletive in his ears. Such was the fact, and such the deduction to be drawn from it. Not that it will satisfy every one. I know that philosophers who deny all that they have not witnessed, and refuse to witness what they resolve to deny, will reject the story in toto; and will prove, by reference to their own dogs, that a dog never recognizes the name of his master,--never yet could be taught arithmetic. I know also that there are Mystics who will prefer to believe that Mop was in direct spiritual communication with unseen Isaacs, or in a state of clairvoyance, or under the influence of the odic fluid. But did we ever yet find in human reason a question with only one side to it? Is not truth a polygon? Have not sages arisen in our day to deny even the principle of gravity, for which we bad been so long contentedly taking the word of the great Sir Isaac? It is that blessed spirit of controversy which keeps the world going; and it is that which, perhaps, explains why Mr. Waife, when his memory was fairly put to it, could remember, out of the history of the myriads who have occupied our planet from the date of Adam to that in which I now write, so very few men whom the world will agree to call wise, and out of that very few so scant a percentage with names sufficiently known to make them more popularly significant of pre-eminent sagacity than if they had been called--Mops. CHAPTER VI. The vagrant having got his dog, proceeds to hunt fortune with it, leaving behind him a trap to catch rats.--What the trap does catch is "just like his luck."