It is written in the annals of the Celestial Empire, that there once, and for ages, existed an historical tribunal, instituted for the purpose of perpetuating the virtues and vices of their monarchs. One day the Emperor Tai-t-song summoned the President of this tribunal before him, and ordered him to exhibit the history of his own reign. The President declined to obey the mandate, upon the ground that they were required to keep an exact record of the virtues and vices of their sovereigns, and would no longer be at liberty to record the truth, if their register was to be subject to the royal inspection. "What!" exclaimed the Father of the Sun and the Uncle of the Moon, "you transmit my history to posterity, and do you assume the liberty of acquainting it with my faults?" "It is inconsistent with my character," rejoined the President, "and with the dignity of my office, ever to disguise the truth. I am bound to record the whole, even to the slightest fault; and such is the exactness and severity of my duty, that I am not suffered to omit a record of our present conversation." Tai-t-song had an elevation of soul to be found in the hearts of few monarchs, even in more civilized countries than the land of Confucius. "Continue," said he to the official historian, "to write the truth without constraint. May my virtues and vices contribute to the public utility, and be instructive to my successors. Your tribunal is free; I will for ever protect it, and permit it to write my history with the utmost impartiality." It is readily admitted that the cases are not exactly parallel. Still, the relation contains an excellent lesson, not only to princes, but to other people. How happy would it be for the world, if we all lived under the full persuasion of the fact, that the faithful hand of history will not fail to send us down to posterity odious or respected, as by our lives and conduct we shall have deserved! And if my friend Wheelwright shall feel offended that I have kept a record of the most striking incidents of his life, I have only to hope that he will dispel his frowns, dismiss his objections, and, by his own example, illustrate the value of such magnanimity as that displayed by the Emperor of China. SOME PASSAGES IN THE LIFE OF MR. DANIEL WHEELWRIGHT. CHAPTER I. A DISQUISITION ON CIRCLES. "In _circle_ following _circle_." The horse at the cider-mill; the mules in the press-room of the American Tract Society; and the watchman who walks his drowsy round until he falls asleep; are not the only beings that spend their lives in traversing a circle. As the curve is the true line of beauty, and as the circle in Egyptian hieroglyphics is ever used as the symbol of renewed life--the type or sign of the generative principle--so the motion produced by the _centripetal_ and _centrifugal_ forces, seems to be that of nature. We are often told of the never-ending domestic duties of the faithful housewife, doomed--