We are not in a position to state whether the genius in question listened favourably to M. Farcot's fervid appeal; but it is certain that his hopes have not yet been realized. The balloon has always appeared to possess such splendid capabilities that it is no wonder its admirers never weary of predicting a brilliant future for the machine. Considering the prominent part which Frenchmen have played in the history of aerostation, it will be readily understood that the apparatus commenced its career with a dash and élan which led mankind to anticipate that it would accomplish marvellous things, and become one of the foremost agents in the great work of civilization. Our lively neighbours, ever on the alert for glory until their recent misfortunes, and probably so still, were charmed with the idea of conquering a new region, though it contained nothing but clouds, and were by no means insensible to the vanity of riding in the air, though in most cases they went up, like their famous sovereign, simply to come down again.

Many years have elapsed—nearly a century—since Pilâtre de Rozier and the Marquis d'Arlandes made their daring voyage into the atmosphere in the car of a fire-balloon, this being the first excursion ever attempted by living creatures, if we except three anonymous animals, a sheep, a duck, and a cock, which were sent up in the previous month, and returned in safety to the earth. But as yet, though the machine has rendered considerable service to science, and will doubtless assist in the solution of many interesting problems, it is a thing of promise rather than of performance. It is still in a rudimentary state, and should be received, says M. Glaisher, simply 'as the first principle of some aerial instrument which remains to be suggested.' Potentially, it may include the germ of some great invention, just as Hiero's eolipile and Lord Worcester's 'water-commanding' engine contained a prophecy of the most masterly of human machines—the steam giants of Watt. But to apply the well-known metaphor of Franklin, when asked what was the use of a balloon, we may say that the 'infant' has not grown up into a man.

Within the last twelve months, however, this largest of human toys—the plaything of pleasure seekers, and the cynosure of all eyes at fêtes and tea-gardens—has been converted into a useful machine, though under the pressure of circumstances which every philanthropist must deeply deplore.

Of course, when the balloon was presented to mankind, one of the first thoughts which suggested itself to our combative race was this—'Can we turn it to any account in war? Will it assist us in killing our enemies, or capturing their fortresses?' And when we remember that the machine was reared amongst the most military people in Europe, can we doubt that as Napoleon's great question respecting the Simplon road was, whether it would carry cannon, so the chief point with a Frenchman would be, whether a balloon could be rendered of any service in a battle? Not many years were suffered to elapse before regular experiments were instituted with this view. An aerostatic school was established at Meudon, a company of aeronauts, under the command of Colonel Coutelle, was formed, and a number of balloons constructed by Couté were distributed amongst the divisions of the French army, not even forgetting the troops despatched to Egypt. At the sieges of Maubeuge, Charleroi, Mannheim, and Ehrenbreitstein the invention was found to be of some value for purposes of reconnoitring; and previous to the battle of Fleurus, Coutelle and an officer spent several hours in the air, studying the positions of the Austrians, and this with such effect that their information materially assisted General Jourdan in gaining the victory. The machine was, of course, held captive during the process, but its tether was easily extended by means of a windlass, and thus the occupants were enabled to soar above the enemy's fire.

More than once it has been proposed to build huge balloons, and freight them with shells and other missiles, which might be conveniently dropped down upon a hostile corps, or 'plumped' into the midst of a beleaguered town. With a view to the demolition of the fortress of St. Juan de Ulloa, during the war between Mexico and the United States, Mr. Wise suggested the construction of an enormous air-ship, which was to carry up a quantity of bombs and torpedoes, and, whilst securely moored in the atmosphere by means of a cable several miles in length, it would be in a position to rain down death upon the devoted place. To its honour, however, the American Government declined the use of such an aerial battery.

Fortunately—we think we may say fortunately—for the interests of mankind, the balloon has not succeeded to any considerable extent as a military machine. Even the Jesuit Lana felt inclined to weep over his abortive project (he did pray over it) when he considered how easy it would be for warlike marauders to set the stoutest walls and ramparts at defiance, and to hurl destruction into any city they might select. Let us hope that the balloon is destined for more pacific purposes. The range of modern guns, and the difficulty of manœuvring so rudderless an apparatus, seem to cut it off from a career of glory. If employed for purposes of reconnoitring purely, and kept in a captive condition, it may occasionally render service by darting suddenly into the atmosphere, and taking a glimpse of the enemy's position or movements. But, then, a tethered balloon, as M. de Fonvielle intimates, belongs neither to the air nor the earth; it is a creature compelled to serve two masters, and therefore cannot do its duty to either; but, whilst attempting to obey the commands of its rulers below, it is forced to yield to the caprice of the breezes above. If free, asks M. Simonin, and if the wind were everything the aerial heroes could wish; if, moreover, the balloon, charged with the most formidable fulminates, were carried direct to the hostile camp, could they expect to find the enemy massed for a review or a manœuvre precisely at the spot over which they sailed, and could they time their discharges so beautifully, having due regard to the speed of the machine, that their projectiles should explode at the most fitting moment for damaging their foes? Happily, in neither of the two greatest struggles of recent times—how recent none need say, for the scent of blood is yet on the soil of Virginia, and the bones of Teuton and Gaul still lie blended on the fields of France—has the balloon brought itself into formidable confederacy with Krupp cannon or the murderous mittrailleuse.

War, however, the greatest of scourges, is sometimes compelled, in the good providence of God, to yield an incidental harvest of blessings. Liberty has often been entrusted to the keeping of the bayonet, and civilization has more than once depended upon the explosive virtues of charcoal and saltpetre. It is not impossible that the recent investment of Paris may ultimately lead to the development of aerial navigation on a scale which would gladden the heart of M. Farcot, and almost satisfy the expectations of some of the greatest enthusiasts in the art. We allude, of course, to the employment of the balloon for postal purposes. During the recent siege of that city—we mean, of course, by the Germans, and not by Frenchmen themselves—upwards of fifty of these aerial packets sailed from the beleaguered metropolis with despatches for the outer world. They conveyed about two-and-a-half millions of letters, representing a total weight of about ten tons. Most of them took out a number of pigeons, which were intended to act as postmen from the provinces. One, called Le Général Faidherbe, was furnished with four shepherds' dogs, which it was hoped would break through the Prussian lines, carrying with them precious communications concealed under their collars. The greater number of these balloons were under the management of seamen, sometimes solitary ones, whose nautical training, it was naturally supposed, would qualify them more especially for the duties of aerial navigation. More than one fell into the hands of the enemy, having dropped down right amongst the Prussians. In some of these cases the crews were generally made prisoners, but in others they effected their escape; and more than once their despatches were preserved in a very remarkable way—in one instance being secreted in a dung cart, and in another being rescued by a forester, and conveyed to Buffet, the aeronaut of the Archimède, who had been sent out in search of them, and had traversed the hostile lines on his errand. Many of these postal vessels were carried to a considerable distance, some landing in Belgium, Holland, or Bavaria; whilst one, La Ville d'Orléans, was swept into Norway, and came to anchor about 600 miles north of Christiania. A few, unhappily, never landed at all. Le Jacquard, which left the Orleans railway station on the 28th November, with a bold sailor for its sole occupant, disappeared like many a gallant ship. It was last observed above Rochelle, and probably foundered at sea, as some of its papers were picked up in the Channel. Le Jules Favre (the second of that name), which set out two days subsequently, has arrived nowhere as yet; and one of the last of these mail-balloons, the Richard Wallace, is missing, as much as if it had sailed off the planet into infinite space. So long as these machines continued to be launched by day, they were exposed to a fusillade whilst traversing the girdle of the Prussian guns, the bullets whistling round them even at an elevation of 900 or 1,000 mètres. To avoid this peril it became necessary to start them by night, although the disadvantages of nocturnal expeditions, in which no light could be carried, and consequently the barometer could not be duly read, were held by many to outweigh all the dangers attaching to German projectiles.

Let us now attempt an imaginary voyage through the air, availing ourselves as much as possible of the experience of the gentlemen whose excursions are chronicled in the work which heads this article. A more attractive volume cannot well be imagined. It is the production of one Englishman and three Frenchmen. Mr. Glaisher is well known, in companionship with Mr. Coxwell, as our greatest authority on the subject. All his visits to the clouds have been for scientific purposes, and if the question,

Quis crederet unquam

Aerias hominem carpere posse vias?