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The wind now being behind the machine in a diagonal direction, our speed in relation to the ground is twice the speed of the outward half of the journey. The sun is pleasantly warming, and I look towards it gratefully. A few small marks, which may or may not be sun-spots, flicker across its face.
He was bathed in sweat; his eyes were without lustre; his tongue hung far out from his gaping jaws; and froth oozed from his mouth. In the afternoon Smirre was so exhausted that he grew delirious. He saw nothing before his eyes but flying geese. He made leaps for sun-spots which he saw on the ground; and for a poor little butterfly that had come out of his chrysalis too soon.
His researches, however, also showed that it was in abeyance during some seventy years previously to 1716, during which period sun-spots remained persistently scarce, and auroral displays were feeble and infrequent even in high northern latitudes. An unaccountable suspension of solar activity is, in fact, indicated.
Phillip's knowledge was universal. He understood all about astronomy, and had prepared an abstract of figures proving the connection of sun-spots, rainfall, and the price of wheat.
Sun-spots are generally found in the neighborhood of the sun's equator, and last from a few hours to a few months. The presence of these spots has enabled scientists to prove that the sun, like the earth, revolves on its axis. The last period of activity for sun-spots was in 1893, and, according to the eleven-year theory, there should be few, if any, at this time. Prof.
Of the sun-spots it is not our intention here specifically to speak, but they evidently have an intimate connection with eruptive prominences, as well as some relation, not yet fully understood, with the corona.
Who, as he read about 'Sun-spots, or 'Fresh Facts for Darwin, or the 'True History of Modesty or Veracity, showing how it came about that these high-sounding virtues are held in their present somewhat general esteem, would find it in his heart to grudge the admirable authors their freedom from petty cares?
But in times of activity this iron disappears, and the lines which previously vouched for it are replaced by other lines spoken of as the enhanced lines of iron that is to say, the lines which are believed to represent the unknown substance or substances into which the iron has been decomposed; and what is true of iron is true of various other elements that are detected in the sun-spots.
There are recognized two kinds of prominences the ``erruptive'' and the ``quiescent. The latter, which are cloud-like in form, may be seen almost anywhere along the edge of the sun; but the former, which often shoot up as if hurled from mighty volcanoes, appear to be associated with sun-spots, and appear only above the zones where spots abound.
Except that such stories serve to call the attention of unscientific people to scientific facts, and teach them to observe the wonders of the universe, it really seems a shame that such marvels should be used as bogies to scare the ignorant and superstitious. As a matter of fact, very little is known about these sun-spots.
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