That very night a telegram was sent from the station of Long's Peak by Joseph T. Maston and Belfast to the gentlemen of the Cambridge Observatory, announcing that on the 11th of December at 8h. 47m. p.m., the projectile launched by the Columbiad of Stones Hill had been detected by Messrs. Belfast and Maston,—that it had deviated from its course from some unknown cause, and had not reached its destination; but that it had passed near enough to be retained by the lunar attraction; that its rectilinear movement had been changed to a circular one, and that following an elliptical orbit round the star of night it had become its _satellite._ The telegram added that the elements of this new star had not yet been calculated; and indeed three observations made upon a star in three different positions are necessary to determine these elements. Then it showed that the distance separating the projectile from the lunar surface "might" be reckoned at about 2833 miles. It ended with this double hypothesis; either the attraction of the moon would draw it to herself, and the travellers thus attain their end; or that the projectile, held in one immutable orbit, would gravitate around the lunar disc to all eternity. With such alternatives, what would be the fate of the travellers? Certainly they had food for some time. But supposing they did succeed in their rash enterprise, how would they return? Could they ever return? Should they hear from them? These questions, debated by the most learned pens of the day, strongly engrossed the public attention. It is advisable here to make a remark which ought to be well considered by hasty observers. When a purely speculative discovery is announced to the public, it cannot be done with too much prudence. No one is obliged to discover either a planet, a comet, or a satellite; and whoever makes a mistake in such a case exposes himself justly to the derision of the mass. Far better is it to wait; and that is what the impatient Joseph T. Maston should have done before sending this telegram forth to the world, which, according to his idea, told the whole result of the enterprise. Indeed this telegram contained two sorts of errors, as was proved eventually. 1st, errors of observation, concerning the distance of the projectile from the surface of the moon, for on the 11th December it was impossible to see it; and what Joseph T. Maston had seen, or thought he saw, could not have been the projectile of the Columbiad. 2ndly, errors of theory on the fate in store for the said projectile; for in making it a satellite of the moon, it was putting it in direct contradiction to all mechanical laws. One single hypothesis of the observers of Long's Peak could ever be realized, that which foresaw the case of the travellers (if still alive) uniting their efforts with the lunar attraction to attain the surface of the disc.