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The gases leaving the luminous flame show that the diluting action of the nitrogen is so great that considerable quantities even of the highly inflammable and rapidly burning hydrogen escape combustion, while the products of incomplete combustion are present in sufficient quantity to account perfectly for the deleterious effects of gas burners in ill-ventilated rooms.
The glass will be dimmed by drops of moisture. The charred part of the wood is charcoal, which is one form of carbon. Our ordinary charcoal is made by driving off all the gases from wood, by burning it under cover where only a little air can reach it. The volatile gases burn more readily than the carbon, and are the first substances to be driven off, so that the carbon is left behind nearly pure.
In entomology, too, if you have any taste for the beauties of form and colour, any fondness for mechanical and dynamical science, the insects, even to the smallest, will supply endless food for such likings; while their instincts and their transformations, as well as the equally wondrous chemical transformation of salts and gases into living plants, which agricultural chemistry teaches you, will tempt you to echo every day Mephistopheles's magic song, when he draws wine out of the table in Auersbach's cellar: Wine is grapes, and grapes are wood The wooden board yields wine as good: It is but a deeper glance Into Nature's countenance.
I tore the note in tiny fragments, and tossed them through the open window. I was exceedingly angry. As I stood at the window adding to the name of Curtis Spencer insulting aliases, the street below sent up hot, stifling odors: the smoke of taxicabs, the gases of an open subway, the stale reek of thousands of perspiring, unwashed bodies.
Land and water, solids and gases, fire and stone, light and darkness were mixed together. All was liquid and turbid chaos. Then the mighty mass began to move from within. The lighter particles of gas and air began to rise, forming the sky and heavens. The heavy parts sank and cohered, becoming the earth. The water formed the four seas.
The spots on the sun are described as being dark patches which are visible on the bright surface of the sun. They often appear in groups, and frequently the larger spots will break up into smaller ones. They are great depressions or holes in the surface of the sun, and are supposed to be formed by descending currents of gases.
Giles's, the music came abruptly to an end, and the people in the street stood at fault with hands uplifted. Whether he was choked with gases, or perished in a quag, or was removed bodily by the Evil One, remains a point of doubt; but the piper has never again been seen or heard of from that day to this.
When sent through glass tubes filled with rarefied gases, sometimes called "Geissler tubes," they elicit glows of many colours, vieing in beauty with the fleeting tints of the aurora polaris, which, indeed, is probably a similar effect of electrical discharges in the atmosphere. The action of the induction is reversible.
Lowell's observatory, was unable to detect any indications of aqueous vapour in the spectrum of Mars. It thus appears that spectroscopic observations are quite accordant with the calculations founded on the molecular theory of gases as to the absence of aqueous vapour, and therefore presumably of liquid water, from Mars.
Many a poor exile has been lost in the windings of a salt mine, there to die miserably. And in the sulphur mines many die also, not from being lost so much as being overcome by stifling gases. It is terrible! And sometimes they are purposely abandoned by their guides, for the government wants to get rid of certain exiles. "But you are interested in platinum.
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