Having thus briefly traced the history of aeronautics, we shall now inquire into the practical value of the art.
After the discovery of the hydrogen-gas balloon, the most extravagant projects dazzled and bewildered the minds of men. To journey through the air from one part of the globe to another, or even to circumnavigate the globe itself, in balloons, was child's play, compared with the magnificent results that were anticipated. It was fondly expected that the new discovery would open up a channel of communication between the earth and its sister planets, and that the time was not far distant when men would be embarking from the Earth, in a balloon, for the Moon, or for Mercury, Venus, Mars, the Asteroids, or some of the other planets, just as they embarked in a ship for France, Italy, India, China, Africa, or America. They forgot that the laws of gravitation, which bind man as by chains of adamant to this world, would ever interpose an insurmountable obstacle to the realization of such wild imaginings; that the atmosphere has its limits as well as the ocean, extending, it is calculated, not much beyond forty miles above the earth's surface; that, at a certain height, it is as light, by reason of its rarity, as the lightest gas with which a balloon can be inflated, thereby rendering all farther ascent impossible; and that, even before the aeronaut had reached that height, very serious consequences would ensue from the intense cold, from the diminution of atmospheric pressure, and from the inadequacy of a too rarified atmosphere for supporting respiration. Such overwrought expectations, however, produced by the first excitement of a great discovery, soon subsided, when men began soberly to reflect on the immutable laws, or, which is the same thing, the powerful mandate of the Creator, which confines all things within their appointed sphere.
But though the idea of emigrating by means of balloons to foreign worlds was relinquished, there still existed a desire to render them subservient to important terrestrial purposes, and various suggestions were made as to the uses to which they might be applied. It was proposed to employ their power of ascension as a mechanical force for raising water from mines, for transporting obelisks, and placing them on greater elevations, or for raising, without any scaffolding a cross or a vane to the top of a high spire. It was proposed that they might be employed as a means of making an escape from surrounding icebergs in the ocean, or for effecting a landing to otherwise inaccessible mountains, and observing their cloud-capped peaks – for exploring the craters of volcanoes – for traversing vast swamps and morasses – and for the improvement of the infant science of meteorology. It was besides predicted that they would become a safe, easy, and expeditious mode of traveling, and of conveying the products of every land and clime from one part of the globe to another. It is long since Dr. Dick suggested, in his "Christian Philosopher," that the missionaries of the cross might yet be able to avail themselves of the aid of balloons in going forth to distant regions to proclaim to the heathen the unsearchable riches of Christ, and that then there would be a literal fulfillment of the prediction of the last of the inspired seers, "And I saw another angel fly in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people." But to only two purposes has the ascending power of the balloon been as yet applied – to the reconnoitring of hostile armies, by the French, for a short time – and, in one or two instances, to the making of scientific observations. Only a single attempt, and a very absurd one, has been made to get up a traveling balloon. The gold-hunters of America, impatient of the slow process by which ships transport them to the golden regions of California, and, as if determined to press the air into the service of giving them a speedier conveyance, lately proposed to build a balloon, to carry them out at the rate of 200 miles per hour. A model of the machine was exhibited in New York and Philadelphia, and it created considerable sensation in the minds of the credulous. It was stated, in a respectable journal of New York, in 1849, that the machine was actually in course of construction, and the steam-engine finished, but nothing more has since been heard of it. "Had these projectors," says Mr. Wise, "gone on from their miniature model, to the erection of one capable of carrying one or two persons, in order to prove its practicability on a larger scale, there might have been reason to believe that they harbored an idea of its general usefulness. But when the project embraced at once so magnificent a scheme, as that contemplated in the swooping strides toward the modern Dorado, with a cargo of a hundred gold-hunters, it seemed too much for sober-minded people; and brought upon itself philosophical criticism and scientific condemnation, and, with that, a good share of opposition to the hopes and expectations of aerial navigation in any shape."
Aerostation is at present applied to no practical useful purpose; it is a mere plaything, occupying no higher a position than catchpenny mountebank exhibitions. Ascents are made in balloons from no other motive, or for no other object, than to draw money from the pockets of the multitude, by ministering to their enjoyment; and when made by persons properly acquainted with the principles and practice of the art – for by such alone can they be effected with safety – and with those precautions which experience has shown to be requisite, they might be liable to no great objection, so long as the people are willing to pay for them; but if conducted by unqualified persons, or by the most skillful, with a daring recklessness of personal danger, or in a manner involving suffering to any sentient being, they ought to be discouraged in every legitimate way by every friend of humanity, as at variance alike with the principles of morality and with the benevolent lessons of the Christian faith. No man may lawfully peril his own life, or subject the inferior animals to unnecessary pain, for the gratification of the all-devouring thirst of the public for exciting exhibitions; and in the very act of encouraging and witnessing such exhibitions, we are quenching the merciful and fostering the cruel in our natures. Of this objectionable character is the practice recently introduced into France of carrying up donkeys in balloons. The adventure is indeed no new one. It was performed by Mr. Green some twenty years ago. But the merit, or rather the demerit, of having turned it into one of the most popular shows in France, is due to M. Poitevin, who has lately been exciting the gaping admiration of thousands in Paris, by this fool-hardy, barbarous, and contemptible mode of aerostation. Early in July this year (1850), he ascended on horseback in a balloon from Champ de Mars, in the presence of upwards of 10,000 persons, who had paid for admission, and the President of the Republic was one of the spectators. The horse, a handsome dapple gray, had stout cloth placed round its body, and several straps, passed over the shoulders and loins, were united in rings, which were attached by cords to the network of the balloon. In this manner was the animal cruelly suspended in the air, having no resting-place for its feet, nor was there any thing to protect the rider, had he lost his balance or been thrown off. The feat having been more successful than could reasonably have been expected, Mr. Green proposed to amuse the inhabitants of London by a similar adventure. Some of the more humane of the English capital were shocked at the announcement; and the secretary of the Society for the Prevention of Cruelty to Animals made application on the 30th of July to the magistrates to put a stop to the ascent. A case of interference not having been made out to the satisfaction of the magistrates, Mr. Green next day started on his journey to the clouds mounted on a pony. It was put in the car – a plan more