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To effect this purpose it is proposed to raise, in patent balloons, a sufficient number of hydraulic presses to compel the moon to give out caloric in the proportions that may be required. From accurate calculations, it appears that a sufficient quantity may be easily procured to double the attraction of that planet upon the ocean, and of course to enable ships to work double tides,-an incalculable benefit to our commerce. By converging the rays into a focus, and directing them to particular ponds and lakes, their temperature may be raised to the boiling point, or 212° of Fahrenheit, which will effect an important saving in the making of tea and all culinary processes, to say nothing of the improvement of the general health by such extensive and natural warm baths. From the known influence of this luminary upon lunatics, some unfavourable symptoms may at first be manifested by our amateur actors, craniologists, writers of Visions of Judgment, followers of Joanna Southcote, believers in Prince Hohenlohe's miracles, March hares, and holders of Spanish, Poyais, and Neapolitan Stock; but, on the other hand, the additional heat will enable us to grow at least double the quantity of cabbage, an important solace to artisans in general, but more particularly to our tailors. Compensation must of course be made to our writers of Sonnets to the Moon, who will be cut short of their whole fourteen lines if they cannot apostrophise her as pale Cynthia, and dissert upon her chaste ray and mild lustre; but this expense will be more than repaid by the treasures that will doubtless be discovered in that repertory of all lost things,

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from the wits of Orlando down to the wit of Don Juan. The Lord of the Lantern and Bush, who has so long stood in his own light, will be let down by a parachute, and exhibited at Bullock's in Piccadilly, as the Man out of the Moon, from which it is expected to procure a sufficient revenue to raise the wind for the bellows.

Many ingenious mechanicians entertain serious doubts as to the feasibility of the third scheme, for which patents have been taken out, though I cannot myself see any scientific grounds for their misgivings. Volcanoes are now universally admitted to owe their projectile power to steam. Water from the surface of the earth, or from some of the caverns of the deep, comes in contact with the subterranean fires, producing such an instantaneous expansion of vapour, that, in its efforts to escape, it tears open the surface and carries all before it, thus forming a natural steam-engine. Hitherto its tremendous power, being left to its own irregular energies, has either ended in smoke, or produced terror, havoc, and destruction, by desolating plains and overwhelming cities. It is high time to stop these mischievous pranks, and avail ourselves of that stupendous engine which Nature herself has built, and offers us ready-made and for nothing, even supplying an inexhaustible reservoir of fuel without one shilling expense. It is proposed to fix an apparatus over the crater of Vesuvius, so as to convert the mountain into a regular steam-engine, turning a river into one of the smaller orifices to generate the vapour in any quantities, and of course providing safety-valves

for its escape after a certain pressure, which, as the mountain itself forms the boiler, may be carried to many thousand atmospheres upon the square inch, The direction of this incalculable power, which will give the shareholders the command of the whole world, is a matter for future consideration; but it is proposed in the first instance to make Vesuvius instru→ mental to the complete excavation of Herculaneum and Pompeii-which seems but fair, as it was the sole cause of their destruction; and to project all the excavated rubbish into the Hellespont, so as to stop the passage of the Dardanelles to the Turkish fleet, and thus operate a favourable diversion for the Greeks. The projector is decidedly of opinion that by this enormous engine he can, if necessary, stop the diurnal motion of the earth upon its axis-an invaluable security to our Asiatic possessions, as, in the event of a mutiny or revolution in that quarter, we could keep them in the dark for six months, and so ruin them in the cost of candles; or renew the days of Phaëton, by scorching them in the sun until they allowed us to rule the roast. A certain theorist has suggested that we might even raise the earth nearer to the sun, provided it was previously lightened by embarking in balloons all our heaviest and most bulky articles,—such as the History of Brazil, the Court of Aldermen, Busby's Lucretius, all our tomes of controversial divinity, the elephant at Exeter Change, &c. &c.but I confess I am disposed to consider this scheme as the chimæra of a visionary.

Others may perhaps be disposed to pronounce a

similar judgment upon the fourth project, which will, however, be very shortly in a course of actual experiment. It appears by the last papers from America that a Colonel Sims has proposed to the President to discover a new world, and has demanded a squadron for the purpose. This terra incognita he maintains to be situated within our own globe--that the old earth, in fact, has a young one in its stomach; and the arguments by which he supports this strange position are both numerous and plausible. If Columbus, by merely consulting a map of the world, became convinced that the equipoise of the system required a counter-ponderant continent in the southern ocean, the Colonel insists that we may à fortiori conclude that the earth must contain another within it. In the first place, he observes, that Nature is ever economical of her means, creating nothing in vain; but that if we presume the whole contents of our planet, which is nearly eight thousand miles in diameter, to be solid, there would not only be an incredible waste of materials, but the weight of such a prodigious mass would infallibly drag us out of our sphere in the system of the universe, and precipitate us into the blind abysses of space. M. Dupin calculates the weight of the great pyramid at above ten millions of tons; yet what is this huge pile, enormous as it is, compared to a single mountain? and what are all the mountains and seas upon the surface of the earth compared to its cubic contents? By supposing it to be hollow, its. buoyancy in space becomes no longer inexplicable, and the principal difficulty that remains, is to discover

the door of entrance, which the Colonel confidently pronounces to be situated at the North Pole. It is conjectured that all the mountains of the undiscovered land are formed of loadstone, and that the position of the aperture leading to them occasions the polarity of the needle. Its name occasioned some little difficulty, the term New World being already applied, the New New World being deemed tautologous; Simsia was rejected as not being classical; Simia, as exposed to a ludicrous perversion; Subterranea, as not strictly accurate, the country being rather within than beneath our own on which account it was finally resolved to term it Interranea. A loan has already been raised for the new government, and the Interranean five per cents. are quoted at 96, having been done at a 100. A bookseller in the Row has given a considerable sum for the copy-right of the voyage, and the public of both Continents (who now discover the appropriate ness of that designation since they contain another within them) are looking with the utmost anxiety for the results of this interesting voyage.

A HINT TO PEDESTRIANS.

AN amusing public writer, with a very praiseworthy feeling, has lately been deploring the distressing vacancy that is likely to sit upon the countenances of the chance-meeters in the streets, when the pending proceedings of the Holly Alliance, and of Mr.

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