The wonders of the world

by John Loraine Abbott

The causes, and materials, yet unfixed,

Of this appearance beautiful and new.—Thomson.

The nature of those splendid phenomena of the heavens which are embraced under the general term meteors, can not be so well elucidated as by an extract from the travels of Messrs. Humboldt and Bonpland to the equinoctial regions of the new continent. The sublime wonders described by the former of these travelers were witnessed by them at Cumana, a city of Venezuela, in South America.

“The night of the eleventh of November, 1779, was cool and extremely beautiful. Toward the morning, from half after two, the most extraordinary luminous meteors were seen toward the east. M. Bonpland, who had risen to enjoy the freshness of the air in the gallery, perceived them first. Thousands of bolides (fire-balls) and falling stars, succeeded each other during four hours. Their direction was very regular, from north to south. They filled a space in the sky extending from the true east thirty degrees toward the north and south. In an amplitude of sixty degrees the meteors were seen to rise above the horizon at east-north-east, and at east to describe arcs more or less extended, falling toward the south, after having followed the direction of the meridian. Some of them attained a hight of forty degrees; and all exceeded twenty-five or thirty degrees. There was very little wind in the low regions of the atmosphere, and this blew from the east. No trace of clouds was to be seen. M. Bonpland relates, that from the beginning of the phenomenon, there was not a space in the firmament equal in extent to three diameters of the moon which was not filled at every instant with bolides and falling stars. The first were fewer in number, but as they were seen of different sizes, it was impossible to fix the limit between these two classes of phenomena. All these meteors left luminous traces from five to ten degrees in length, as often happens in the equinoctial regions. The phosphorescence of these traces, or luminous bands, lasted seven or eight seconds. Many of the falling stars had a very distinct nucleus, as large as the disk of Jupiter, from which darted sparks of vivid light. The bolides seemed to burst as by explosion; but the largest, those from one degree to one degree and fifteen minutes in diameter, disappeared without scintillation, leaving behind them phosphorescent bands (trabes) exceeding in breadth fifteen or twenty minutes, or sixtieth parts of a degree. The light of these meteors was white, and not reddish, which must be attributed, no doubt, to the absence of vapors, and the extreme transparency of the air. For the same reason, under the tropics, the stars of the first magnitude have, at their rising, a light evidently whiter than in Europe.

“Almost all the inhabitants of Cumana were witnesses of this phenomenon, and did not behold these bolides with indifference; the oldest among them remembered, that the great earthquakes of 1766 were preceded by similar phenomena. The fishermen in the suburbs asserted, that the fire-work had begun at one o’clock; and that, as they returned from fishing in the gulf, they had already perceived very small falling stars toward the east. They affirmed at the same time, that igneous meteors were extremely rare on those coasts after two in the morning.

“The phenomenon ceased by degrees after four o’clock, and the bolides and falling stars became less frequent; but we still distinguished some toward the north-east, by their whitish light, and the rapidity of their movement, a quarter of an hour after sunrise. This circumstance will appear less extraordinary, when I state that in full daylight, in 1788, the interior of the houses in the town of Popayan was highly illumined by an aerolite of immense magnitude. It passed over the town when the sun was shining clearly, about one o’clock. M. Bonpland and myself, during our second residence at Cumana, after having observed on the twenty-sixth of September, 1800, the immersion of the first satellite of Jupiter, succeeded in seeing the planet distinctly with the naked eye, eighteen minutes after the disk of the sun had appeared in the horizon. There was a very slight vapor in the east, but Jupiter appeared on an azure sky. These facts prove the extreme purity and transparency of the atmosphere under the torrid zone. The mass of diffused light is so much less, as the vapors are more perfectly dissolved. The same cause that weakens the diffusion of the solar light, diminishes the extinction of that which emanates either from a bolis, Jupiter, or the moon, seen on the second day after her conjunction.

“The researches of M. Chladni having singularly fixed the attention of the scientific world upon the bolides and falling stars, at my departure from Europe, we did not neglect during the course of our journey from Caraccas to the Rio Negro, to inquire everywhere, whether the meteors of the twelfth of November had been perceived. In the savage country, where the greater number of the inhabitants sleep out in the air, so extraordinary a phenomenon could not fail to be remarked, except when concealed by clouds from the eye of observation. The Capuchin missionary at San Fernando de Apura, a village situated amid the savannas of the province of Varinas, and the Franciscan monks stationed near the cataracts of the Orinoco, and at Maroa, on the banks of the Rio Negro, had seen numberless falling stars and bolides illumine the vault of heaven. Maroa is south-west of Cumana, and one hundred and seventy-four leagues’ distance. All these observers compared the phenomenon to a beautiful fire-work, which had lasted from three till six in the morning. Some of the monks had marked the day upon their ritual; others had noted it by the nearest festivals of the church. Unfortunately, none of them could recollect the direction of the meteors, or their apparent hight. From the position of the mountains and thick forest which surround the missions of the cataracts and the little village of Maroa, I presume that the bolides were still visible at twenty degrees above the horizon. On my arrival at the southern extremity of Spanish Guiana, at the little fort of San Carlos, I found a party of Portuguese, who had gone up the Rio Negro from the mission of St. Joseph of the Maravitains, and who assured me, that in that part of Brazil, the phenomenon had been perceived, at least as far as San Gabriel das Cachoeiras, consequently as far as the equator itself.

“I was powerfully struck at the immense hight which these bolides must have attained, to have been visible at the same time at Cumana, and on the frontiers of Brazil, in a line of two hundred and thirty leagues in length. But what was my astonishment, when at my return to Europe, I learned that the same phenomenon had been perceived, on an extent of the globe of sixty-four degrees of latitude, and ninety-one degrees of longitude; at the equator, in South America, at Labrador, and in Germany! I found accidentally, during my passage from Philadelphia to Bordeaux, in the memoirs of the Pennsylvanian society, the corresponding observations of Mr. Ellicott (latitude thirty degrees, forty-two minutes;) and, upon my return from Naples to Berlin, I read the account of the Moravian missionaries among the Esquimaux, in the library of Göttingen. Several philosophers had already discussed at this period the coincidence of the observation in the north with those at Cumana, which M. Bonpland and I had published in 1800.

“The following is a succinct enumeration of facts. First, the fiery meteors were seen in the east, and the east-north-east, to forty degrees of elevation, from two to six hours at Cumana, (latitude ten degrees, twenty-seven minutes, fifty-two seconds, longitude sixty-six degrees, thirty minutes;) at Porto Cabello, (latitude ten degrees, six minutes, fifty-two seconds, longitude sixty-seven degrees, five minutes;) and on the frontiers of Brazil, near the equator, in the longitude of seventy degrees west of the meridian of Paris. Secondly, in French Guiana, (latitude four degrees, fifty-six minutes, longitude fifty-four degrees, thirty-five minutes,) the northern part of the sky was seen all on fire. Innumerable falling stars traversed the heavens during an hour and a half, and diffused so vivid a light, that those meteors might be compared to the blazing sheaves shot out from fire-works. Thirdly, Mr. Ellicott, an astronomer in the United States, having terminated his trigonometric operations for the rectification of the limits on the Ohio, being, on the twelfth of November, in the gulf of Florida, in the latitude of twenty-five degrees, and longitude eighty-one degrees, fifty minutes, saw, in all parts of the sky, ‘as many meteors as stars, moving in all directions: some appeared to fall perpendicularly; and it was expected every minute that they would drop into the vessel.’ The same phenomenon was perceived upon the American continent as far as the latitude of thirty degrees, forty-two minutes. Fourthly, in Labrador, at Nain (latitude fifty-six degrees, fifty-five minutes) and Hoffenthal (latitude fifty-eight degrees, four minutes,) and in Greenland, at Lichtenau (latitude sixty-one degrees, five minutes) and New Herrnhutt, (latitude sixty-four degrees, fourteen minutes, longitude fifty-two degrees, twenty minutes,) the Esquimaux were frightened at the enormous quantity of bolides which fell during twilight toward all points of the firmament, some of them being a foot broad. Fifthly, in Germany, M. Zeissing, vicar of Itterstadt, near Weimar, (latitude fifty degrees, fifty-nine minutes, longitude nine degrees, one minute east,) perceived, on the twelfth of November, between the hours of six and seven in the morning, when it was half after two at Cumana, some falling stars, which shed a very white light. Soon after, toward the south and south-west, luminous rays appeared from four to six feet long: they were reddish, and resembled the luminous track of a sky-rocket. During the morning twilight, between the hours of seven and eight, the south-west part of the sky was seen, from time to time, strongly illuminated by white lightning, which ran in serpentine lines along the horizon. At night the cold increased, and the barometer rose.

“The distance from Weimar to the Rio Negro, is eighteen hundred sea leagues; and from Rio Negro to Herrnhutt, in Greenland, thirteen hundred leagues. Admitting that the same fiery meteors were seen at points so distant from each other, we must also admit, that their hight was at least four hundred and eleven leagues. Near Weimar, the appearance like sky-rockets was seen in the south and south-east; at Cumana, in the east and in the east-north-east. We may therefore conclude, that numberless aerolites must have fallen into the sea, between Africa and South America, to the west of the Cape Verde islands. But, since the direction of the bolides was not the same at Labrador and at Cumana, why were they not perceived in the latter place toward the north, as at Cayenne? I am inclined to think, that the Chayma Indians of Cumana did not see the same bolides as the Portuguese in Brazil, and the missionaries in Labrador; but, at the same time, it can not be doubted, and this fact appears to me very remarkable, that in the new world, between the meridians of forty-six degrees and eighty-two degrees, between the equator and sixty-four degrees north, at the same hour, an immense number of bolides and falling stars were perceived; and that those meteors had everywhere the same brilliancy, throughout a space of nine hundred and twenty-one thousand square leagues.