The work on Aerostation, by Mr. Green, recently published in Philadelphia, has been much noticed in Europe, where--particularly in France--the subject has attracted large attention, in consequence of the death of Gale, (formerly a player at our Bowery Theater,) near Bordeaux, and the recent wicked and ridiculous ascents with horses, ostriches, &c. from the Hippodrome in Paris, and some experiments in ballooning at Madrid. In an interesting paper in the _Revue des Deux Mondes_, for the fifteenth of October, we have an account of numerous theories, experiments, and accidents, constituting an entertaining _resumé_ of the whole matter. Few instances of intrepidity, danger, and escape, excite livelier emotion than the crossing from England to France by Blanchard, and Dr. Jeffries, an American, on the seventh of January, 1785. When, by the loss of gas, the balloon descended rapidly over the channel, and approached near the surface of the sea, after everything had been thrown out, even to their clothes, Jeffries offered to leap into the sea, and by thus lightening the balloon further, afford Blanchard a chance of safety. "We must both be lost as the case is," said he; "if you think your preservation is possible, I am ready to sacrifice my life." The French military ascents are particularly described. Companies of aeronauts were formed and trained, and Bonaparte took one of them with him to Egypt, but the British captured all the apparatus for the generation of gas. The First Consul caused ascents in picturesque balloons to be made on occasions of public rejoicing for victories, in order to strike the imaginations of the Egyptians, and an aerostatic academy was established near Paris. The writer mentions that Lieutenant Gale, like poor Sam Patch, so famous for a similar absurdity, and for a similar and not less miserable end, had drank too much brandy for self-possession in a dangerous predicament. He thinks that the problem of the direction or government of balloons cannot possibly be solved with the mechanical means which science now commands; and that, as they may be usefully employed for the study of the great physical laws of the globe, all experiments should be restricted to the object of advancing science. He dwells on what might be accomplished toward ascertaining the true laws of the decrease of temperature in the elevated regions of the air, of the decrease of density of the atmosphere, of the decrease of humidity according to atmospheric heights, and of the celerity of sound. After all the experiments, and all that has been written upon the subject, we are confident that the direction of a balloon is quite impossible, except by a process which we have never yet seen suggested; that is, by the rapid decomposition of the air in its way, so that a tube extended in the direction in which it is desired to move, shall open continually a vacuum into which the pressure of the common atmosphere shall impel the carriage.