But cause undoubtedly there is, existing somewhere; for so powerful an agent, revolutionizing our very nature, must surely have “a local habitation and a name.” Do not let us suppose that because the various Sir John Rosses and Sir John Franklins have failed in their researches after this _primum mobile_, that it is hidden from the eyes of science. One of these seasons we shall be delighted by an advertisement in all the daily papers announcing thus: “Wonderful Discovery! Astounding Developments!! Thousands unable to obtain Admission!!! The Reverend Neophyte Frisky will deliver a Lecture at the Great Saloon of the Chinese Museum. Subject—Atmospheric Influence on Human-Natureology, showing its Cause and Effects. Experiments will be made after the Lecture. The Secret will be communicated to classes composed of Gentlemen and Ladies, at Ten Dollars a ticket. For notice of the hours of each class see small bills. Admission (so as to bring it within the reach of all) Five Cents—Children half price—Unbelievers admitted Free.” Thus faith in the hidden things of science will be made clear to the eyes of the million, and the singular phenomenon, exhibiting itself in its manifest effects from a hitherto undiscovered cause, will become as familiar to men as the horrors of _a Rainy Day_. We fear that some will naturally regard these remarks as intended to cast reproach on scientific investigation, and research into the wide fields of pathological—naturo-philosophical—moral-philosophical love. Far from it. We beg to invite volunteers to unite in an overland expedition after the philosopher’s stone. Let a company be formed on shares, armed and equipped with revolvers and rifles of the latest theory, to shoot opposition on the way for food for the Association—with India Rubber life-boats to cross the streams, and Gutta Percha tents to repose in on the march—secure a flying-machine on the last model, to transport the enthusiasts over mountains, and stock enough at $5 a share to start the _enterprise_, if not the _expedition_. We would not only invite the formation of such Associations in all the Atlantic cities, but suggest to rural scientificators to leave the plough of successful homebred labor, sell out their little all, and invest at once. Why drudge longer, alone and single-handed, when these combinations and associations insure the journey to be made in six weeks from the “Independence” of the first start. But, reader, let us advise you, if you are seriously impressed with the propriety of the undertaking and its certain success, don’t dwell on the results to be attained on _a Rainy Day_.