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They are besides fine and sharp, while the corresponding absorption-lines in the ordinary solar spectrum are wide and diffuse. Hence, prominences formed by the spectroscope out of these particular qualities of violet light, can be photographed entire and at once, for the simple reason that they are projected upon a naturally darkened background. Atmospheric glare is abolished by local absorption.
The first two have something in common, the almost mystic union of sky and sea and shore, a soft atmospheric suffusion that works an enchantment, and puts one into a dreamy mood. And yet there are decided contrasts. The superabundant, soaking sunshine of Sorrento is of very different quality from that of the Isle of Wight.
He cooled the cylinder by injecting water as well as using a water-jacket, and used flame instead of electric ignition. The consumption was now brought down to 87·5 cubic ft. At the second Parisian International Exhibition, 1867, an atmospheric engine, invented by Otto & Langen about this time, was shown.
Baird Smith, Italian Irrigation, i., p. 189. There are some atmospheric phenomena in Northern Italy, which an American finds it hard to reconcile with what he has observed in the United States.
At the end of February the atmospheric conditions, which up till then had remained exceptionally favorable, changed suddenly, giving place to a period of bad weather, with meteorological phenomena particularly remarkable in that theater of the operations, which among all those of the European war is the most Alpine and the most difficult.
In discussing the influence of mountains on precipitation, meteorologists have generally treated the popular belief, that mountains "attract" to them clouds floating within a certain distance from them, as an ignorant prejudice, and they ascribe the appearance of clouds about high peaks solely to the condensation of the humidity of the air carried by atmospheric currents up the slopes of the mountain to a colder temperature.
This source of the Black Plague was not, however, the only one; for far more powerful than the excitement of the latent elements of the plague by atmospheric influences was the effect of the contagion communicated from one people to another on the great roads and in the harbours of the Mediterranean.
The principal object of conducting the investigation during the summer solstice has been the facilities afforded for determining atmospheric absorption, the sun's zenith distance at noon being only 17° 12' at New York.
Refraction is the result of viewing objects through those different media, and very curious appearances follow. When Scoresby was in Greenland a singular atmospheric phenomenon occurred, whereby he became aware of the approach of his father's ship some time before it rose above the horizon. He had reached Greenland before his father, who followed him in the Fame.
At first it had seemed like some faint and unexplained atmospheric derangement, occasioned, apparently, neither by an opened window nor by a door. Some papers fluttered to the floor, the fringes of the hangings softly waved, and, indeed, it would still have been easy to dismiss the matter as the effect of a vagrant draft had not the state of things suddenly grown unmistakably unusual.
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