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Harper's New Monthly Magazine, Volume 1, No. 4, September, 1850. Various
Читать онлайн.Название Harper's New Monthly Magazine, Volume 1, No. 4, September, 1850
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The celebrated Gassendi was an eye-witness of a similar event. In the year 1627, on the 27th of November, the sky being quite clear, he saw a burning stone fall in the neighborhood of Nice, and examined the mass. While in the air it appeared to be about four feet in diameter, was surrounded by a luminous circle of colors like a rainbow, and its fall was accompanied by a noise like the discharge of artillery. Upon inspecting the substance, he found it weighed 59 lbs., was extremely hard, of a dull, metallic color, and of a specific gravity considerably greater than that of common marble. Having only this solitary instance of such an occurrence, Gassendi concluded that the mass came from some of the mountains of Provence, which had been in a transient state of volcanic activity. Instances of the same phenomenon occurred in the years 1672, 1756, and 1768; but the facts were generally doubted by naturalists, and considered as electrical appearances, magnified by popular ignorance and timidity. A remarkable example took place in France in the year 1790. Between nine and ten o’clock at night, on the 24th of July, a luminous ball was seen traversing the atmosphere with great rapidity, and leaving behind it a train of light; a loud explosion was then heard, accompanied with sparks which flew off in all directions; this was followed by a shower of stones over a considerable extent of ground, at various distances from each other, and of different sizes. A procès verbal was drawn up, attesting the circumstance, signed by the magistrates of the municipality, and by several hundreds of persons inhabiting the district. This curious document is literally as follows: “In the year one thousand seven hundred and ninety, and the thirtieth day of the month of August, we, the Lieut. Jean Duby, mayor, and Louis Massillon, procurator of the commune of the municipality of La Grange-de-Juillac, and Jean Darmite, resident in the parish of La Grange-de-Juillac, certify in truth and verity, that on Saturday, the 24th of July last, between nine and ten o’clock, there passed a great fire, and after it we heard in the air a very loud and extraordinary noise; and about two minutes after there fell stones from heaven; but fortunately there fell only a very few, and they fell about ten paces from one another in some places, and in others nearer, and, finally, in some other places farther; and falling, most of them, of the weight of about half a quarter of a pound each, some others of about half a pound, like that found in our parish of La Grange; and on the borders of the parish of Creon, they were found of a pound weight; and in falling, they seemed not to be inflamed, but very hard and black without, and within of the color of steel: and, thank God, they occasioned no harm to the people, nor to the trees, but only to some tiles which were broken on the houses; and most of them fell gently, and others fell quickly, with a hissing noise; and some were found which had entered into the earth, but very few. In witness thereof, we have written and signed these presents. Duby, mayor. Darmite.” Though such a document as this, coming from the unlearned of the district where the phenomenon occurred, was not calculated to win acceptance with the savans of the French capital, yet it was corroborated by a host of intelligent witnesses at Bayonne, Thoulouse, and Bordeaux, and by transmitted specimens containing the substances usually found in atmospheric stones, and in nearly the same proportions. A few years afterward, an undoubted instance of the fall of an aërolite occurred in England, which largely excited public curiosity. This was in the neighborhood of Wold Cottage, the house of Captain Topham, in Yorkshire. Several persons heard the report of an explosion in the air, followed by a hissing sound; and afterward felt a shock, as if a heavy body had fallen to the ground at a little distance from them. One of these, a plowman, saw a huge stone falling toward the earth, eight or nine yards from the place where he stood. It threw up the mould on every side, and after penetrating through the soil, lodged some inches deep in solid chalk rock. Upon being raised, the stone was found to weigh fifty-six pounds. It fell in the afternoon of a mild but hazy day, during which there was no thunder or lightning; and the noise of the explosion was heard through a considerable district. It deserves remark, that in most recorded cases of the descent of projectiles, the weather has been settled, and the sky clear; a fact which plainly places them apart from the causes which operate to produce the tempest, and shows the popular term thunder-bolt to be an entire misnomer.
While this train of circumstances was preparing the philosophic mind of Europe to admit as a truth what had hitherto been deemed a vulgar error, and acknowledge the appearance of masses of ignited matter in the atmosphere occasionally descending to the earth, an account of a phenomenon of this kind was received from India, vouched by an authority calculated to secure it general respect. It came from Mr. Williams, F.R.S., a resident in Bengal. It stated that on December 19th, 1798, at eight o’clock in the evening, a large, luminous meteor was seen at Benares and other parts of the country. It was attended with a loud, rumbling noise, like an ill-discharged platoon of musketry; and about the same time, the inhabitants of Krakhut, fourteen miles from Benares, saw the light, heard an explosion, and immediately after the noise of heavy bodies falling in the neighborhood. The sky had previously been serene, and not the smallest vestige of a cloud had appeared for many days. Next morning, the mould in the fields was found to have been turned up in many spots; and unusual stones, of various sizes, but of the same substance, were picked out from the moist soil, generally from a depth of six inches. As the occurrence took place in the night, after the people had retired to rest, the explosion and the actual fall of the stones were not observed; but the watchman of an English gentleman, near Krakhut, brought him a stone the next morning, which had fallen through the top of his hut, and buried itself in the earthen floor. This event in India was followed, in the year 1803, by a convincing demonstration in France, which compelled the eminent men of the capital to believe, though much against their will. On Tuesday, April 26th, about one in the afternoon, the weather being serene, there was observed in a part of Normandy, including Caen, Falaise, Alençon, and a large number of villages, a fiery globe of great brilliancy moving in the atmosphere with great rapidity. Some moments after, there was heard in L’Aigle and in the environs, to the extent of more than thirty leagues in every direction, a violent explosion, which lasted five or six minutes. At first there were three or four reports, like those of a cannon, followed by a kind of discharge which resembled the firing of musketry; after which there was heard a rumbling like the beating of a drum. The air was calm, and the sky serene, except a few clouds, such as are frequently observed. The noise proceeded from a small cloud which had a rectangular form, and appeared motionless all the time that the phenomenon lasted. The vapor of which it was composed was projected in all directions at the successive explosions. The cloud seemed about half a league to the northeast of the town of L’Aigle, and must have been at a great elevation in the atmosphere, for the inhabitants of two hamlets, a league distant from each other, saw it at the same time above their heads. In the whole canton over which it hovered, a hissing noise like that of a stone discharged from a sling was heard, and a multitude of mineral masses were seen to fall to the ground. The largest that fell weighed 17-1/2 pounds; and the gross number amounted to nearly three thousand. By the direction of the Academy of Sciences, all the circumstances of this event were minutely examined by a commission of inquiry, with the celebrated M. Biot at its head. They were found in harmony with the preceding relation, and reported to the French minister of the interior. Upon analyzing the stones, they were found identical with those of Benares.
The following are the principal facts with reference to the aërolites, upon which general dependence may be placed. Immediately after their descent they are always intensely hot. They are covered with a fused black incrustation, consisting chiefly