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Updated: May 7, 2025
Ten minutes later, Hastings found himself on top of a Montrouge tram, and shortly afterward was joined by Clifford. They climbed down at the rue Gay Lussac. "I always stop here," observed Clifford, "I like the walk through the Luxembourg." "By the way," said Hastings, "how can I call on you when I don't know where you live?" "Why, I live opposite you."
His experiments, however, have nothing in common with those of Gay- Lussac, which were performed with the juice of grapes crushed under conditions where they would not be affected by air, and then brought into contact with oxygen. "Yeast, when perfectly developed, is able to bud and grow in a saccharine and albuminous liquid, in the complete absence of oxygen or air.
He at once made him acquainted with Gay Lussac, the famous Parisian chemist, and Liebig was thus placed on the road to the lofty position which he was afterwards to occupy in all the departments of science. The Munich zoologist von Siebold we first knew intimately years after.
It is said that "the good Virgin" comes and sits on the prettiest of the stones, and next morning they see there her beautiful golden tresses. At Lussac, in Poitou, the lighting of the midsummer bonfire is still an affair of some ceremony. A pyramid of faggots is piled round a tree or tall pole on the ground where the fair is held; the priest goes in procession to the spot and kindles the pile.
Again it was an early morning ascent, with a barometer on the ground standing at 30.6 inches, and a slightly misty air. Lussac appears to have accomplished the exceedingly difficult task of counting the oscillations of his magnet with satisfaction to himself. At 10,000 feet twenty vibrations occupied 83 seconds, as compared with 84.33 seconds at the earth's surface.
Edwards begged of me to inquire for how many generations that instinct lasted. Monsieur and Madame Gay Lussac lived in the Jardin des Plantes. Madame was only twenty-one, exceedingly pretty, and well-educated; she read English and German, painted prettily, and was a musician.
It has been attempted to apply the principle to organic bodies; but it has not yet been carried to a full and satisfactory conclusion. It may be noticed, too, that Dalton affirmed that simple substances unite with each other in definite weights to form compound substances, thus supporting the idea of Lussac.
The achievement of this French savant makes a brilliant record in the early pages of our history. It is not surprising that Lussac should own to having felt no inconsiderable personal discomfort before his venture was over.
Since the last ascents of Gay Lussac, in 1804, already recorded, there had been a lull in ballooning enterprise in France, and no serious scientific expeditions are recorded until the year 1850, when MM. Baral and Bixio undertook some investigations respecting the upper air, which were to deal with its laws of temperature and humidity, with the proportion of carbonic acid present in it, with solar heat at different altitudes, with radiation and the polarisation of light, and certain other interesting enquiries.
The clouds in which we hear the rattling of the hailstones against one another before they fall, and which move horizontally, have always appeared to me of little elevation; and at these small heights we may conceive that extraordinary refrigerations are caused by the dilatation of the ascending air, of which the capacity for caloric augments; by currents of cold air coming from a higher latitude, and above all, according to M. Gay Lussac, by the radiation from the upper surface of the clouds.
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