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The aurora borealis shot upwards to the zenith, and between two and three o'clock the first streak of dawn appeared, stretching far along the edge of the eastern horizon, a faint streak of light; then it gradually broadened and deepened, and became a rich saffron tint, with violet above, and then an ethereal and transparent blue.
When the wind blows from the land, and the waters of the lake are low, a narrow sandy beach is uncovered, and affords a landing-place for boats. The shores of Limestone Bay are covered with small fragments of calcareous stones. During the night the Aurora Borealis was quick in its motions, and various and vivid in its colours.
How'd you like to farm it, and depend on volcanic glare to raise a crop? That's what they call religious science. God won't damn a man for things like that. What else? The aurora borealis! A great cucumber country! It's strange He never thought of glow worms!
The display of the aurora borealis had ceased, and only the stars leaped in the great cold and by their uncertain light made traps for the feet. Shorty floundered off a turn of the trail into deep snow, and raised his voice in blessing of the date of the week and month and year. "Can't you keep still?" Smoke chided. "Leave the almanac alone. You'll have all Dawson awake and after us." "Huh!
The Aurora Borealis, after the loss of three precious days, during which Captain Jack endlessly backed and filled, and the water in the river steadily fell, had finally cast off that afternoon; and after ascending twenty miles or so, tied up to the bank to await the dawn. It was now about ten; overcast above; velvety dark below; and still as death.
Farther, if we admit the existence of particular aerial fluids in the inaccessible regions of luminous meteors, of falling-stars, bolides, and the Aurora Borealis; how can we conceive why the whole stratum of those fluids does not at once ignite, but that the gaseous emanations, like the clouds, occupy only limited spaces?
For example, if we could establish the truth of what up till now is only a conjecture, namely, that it is the action of the sun which produces thermoelectricity at the equator; that this produces terrestrial magnetism; and that this magnetism, again, is the cause of the aurora borealis, these would be truths externally of great, but internally of little, significance.
In the northern regions, where the polar direction is nearly perpendicular to the horizon, all horizontal motions of conductors will produce electricity; horizontal wheels, for example, made of metal; likewise all running streams will evolve a current of electricity, which will circulate round them; and the air thus charged with electricity may be one of the causes of the Aurora Borealis.
Richardson, being placed at the distance of about forty-five miles from each other, in order to make simultaneous observations, whence they might deduce the parallax of the phenomenon, and consequently its height, were led to the conclusion that the aurora borealis had not a greater elevation than five miles.
These fulminations are very semblable to those of the popes harmless corruscations a sort of aurora borealis, erratic and splendid, but very unreal and very unsearchable as to cause and effect.
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