differences there are between my brother and HIM, but in the great outline of their views, they coincide. This hypothesis, however, like a thousand others, when it happened that they engaged no durable sympathy from his nursery audience, he did not pursue. For some time, he turned his thoughts to philosophy, and read lectures to us every night upon some branch or other of physics. This undertaking arose upon some one of us envying or admiring flies for their power of walking upon the ceiling. "Pooh!" he said, "they are impostors; they pretend to do it, but they can't do it as it ought to be done. Ah! you should see _me_ standing upright on the ceiling, with my head downward, for half-an-hour together, and meditating profoundly." My second sister remarked, that we should all be very glad to see him in that position. "If that's the case," he replied, "it's very well that all is ready, except as to one single strap." Being an excellent skater, he had first imagined that, if held up until he had started, by taking a bold sweep ahead, he might then keep himself in position through the continued impetus of skating. But this he found not to answer, because, as he observed, "the friction was too retarding from the plaster of Paris, but the ease would be very different if the ceiling were coated with ice." As it was _not_, he changed his plan. The true secret, he said, was this: he would consider himself in the light of a humming-top: he would make an apparatus (and he made it) for having himself launched, like a top, upon the ceiling, and regularly spun. Then the vertiginous motion of the human top would overpower the force of gravitation. He should, of course, spin upon his own axis, and sleep upon his axis--perhaps he might even dream upon it; and he laughed at "those scoundrels, the flies," that never improved in their pretended art, nor made any thing of it. The principle was now discovered; "and, of course," he said, "if a man can keep it up for five minutes, what's to hinder him from going on for five months?" "Certainly," my sister replied, whose skepticism, in fact, had not settled upon the five months, but altogether upon the five minutes. The apparatus for spinning him, however, would not work: a fact which was evidently owing to the stupidity of the gardener. On reconsidering the subject, he announced, to the disappointment of some among us, that, although the physical discovery was now complete, he saw a moral difficulty. It was not a _humming_-top that was required, but a _peg_-top; and this, in order to keep up the _vertigo_ at full stretch, without which to a certainty, gravitation would prove too much for him, needed to be whipped incessantly. Now, that was what a gentleman ought not to tolerate: to be scourged unintermittingly on the legs by any grub of a gardener, unless it were Father Adam himself, was a thing that he could not bring his mind to endure. However, as some compensation, he proposed to improve