We were sitting rather negligently on an infernal animal, which, up to that day, had seemed quiet as a lamb--kissing our hand to Mrs. Davison, then Miss Duncan, and in the blaze of her fame, when a Highland regiment, no doubt the forty-second, that had been trudging down the Mound, so silently that we never heard them, all at once, and without the slightest warning, burst out, with all their bag-pipes, into one pibroch! The mare--to do her justice--had been bred in England, and ridden, as a charger, by an adjutant to an English regiment. She was even fond of music--and delighted to prance behind the band--unterrified by cymbals or great drum. She never moved in a roar of artillery at reviews--and, had the Castle of Edinburgh--Lord bless it--been self-involved, at that moment, in a storm of thunder and lightning, round its entire circle of cannon, that mare would not so much as have pricked up her ears, whisked her tail, or lifted a hoof. But the pibroch was more than horse-flesh and blood could endure--and off we two went like a whirlwind. Where we went--that is to say, what were the names of the few first streets along which we were borne, is a question which, as a man of veracity, we must positively decline answering. For some short space of time, lines of houses reeled by without a single face at the windows--and these, we have since conjectured, might be North and South Hanover street, and Queen-street. By and by we surely were in something like a square--could it be Charlotte-square?--and round and round it we flew--three, four, five, or six times, as horsemen do at the Caledonian amphitheatre--for the animal had got blind with terror, and kept viciously reasoning in a circle. What a show of faces at all the windows then! A shriek still accompanied us as we clattered, and thundered, and lightened along; and, unless our ears lied, there were occasional fits of stifled laughter, and once or twice a guffaw; for there was now a ringing of lost stirrups--and much holding of the mane. One complete round was executed by us, first on the shoulder beyond the pommel; secondly, on the neck; thirdly, between the ears; fourthly, between the forelegs, in a place called the counter, with our arms round the jugular veins of the flying phenomenon, and our toes in the air. That was, indeed, the crisis of our fever, but we made a wonderful recovery back into the saddle--righting like a boat capsized in a sudden squall at sea--and once more, with accelerated speed, away past the pillared front of St. George's church!