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Updated: July 6, 2025
Bessarion has a minute central hill, difficult to detect. PYTHEAS. A small rhomboidal-shaped ring-plain, 12 miles in diameter, standing in an isolated position on the Mare Imbrium between Lambert and Gay-Lussac.
What prevents the electricity from descending towards the earth, in air which becomes more humid after the month of March? The electricity at this period, instead of being diffused throughout the whole atmosphere, appears accumulated on the exterior envelope, at the surface of the clouds. According to M. Gay-Lussac it is the formation of the cloud itself that carries the fluid toward its surface.
Gay-Lussac, a philosophic Frenchman, rose, in 1804, to the height of seven thousand yards." "He must have felt a little giddy," remarked Jack. "Most of the functions of the body were affected, more or less, by the extreme rarity of the air at that height. Its dryness caused wet parchment to crisp.
But this apparition had appeared in Paris, on the Quai Voltaire, and in the nineteenth century; the time and place made sorcery impossible. The idol of French scepticism had died in the house just opposite, the disciple of Gay-Lussac and Arago, who had held the charlatanism of intellect in contempt.
Gay-Lussac the chemist, Laplace the astronomer, Larrey the surgeon, de Suze the advocate, are here, and with them are Talma, Bellini, Rubini; de Balzac, Beaumarchais, Beranger; Moliere and Lafontaine, and scores of other men whose names and whose worthy labors are as familiar in the remote by-places of civilization as are the historic deeds of the kings and princes that sleep in the marble vaults of St.
Yet the observations of Gay-Lussac were correct, as countless chemists since then have demonstrated anew, and his theory of combination by volumes became one of the foundation-stones of the atomic theory, despite the opposition of the author of that theory.
M. Gay-Lussac says: "Having arrived at the most elevated point of my ascent, 21,000 feet above sea level, my respiration was rendered sensibly difficult, but I was far from experiencing any illness of a kind to make me descend.
The alumite of Tolfa, which, since my return to Europe, I have examined on the spot, conjointly with Gay-Lussac, has, by its oryctognostic characters and its chemical composition, a considerable affinity to compact feldspar, which constitutes the basis of so many trachytes and transition-porphyries.
We obtain thus a hydrogenizing surface of 1,800 square meters, or 12 square meters per hectoliter of impure spirits of 50° to 60° Gay-Lussac. The raw impure spirits enter the apparatus through the upper pipe, E, and, after a sufficient stay therein, are drawn off through the lower pipe, H, into a reservoir, R, from whence, by means of a pump, they are forced to the rectifier.
This assertion is contrary to what M. Gay-Lussac and myself observed, before the great eruption of 1805, and while the lava was issuing from the crater. The vapours of heated water, which act on the fragments of lava scattered about on the caldera, reduce certain parts of it to a state of paste.
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