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The first thing that struck her eye was the furnace, that hot and feverish worker, with the intense glow of its fire, which by the quantities of soot clustered above it seemed to have been burning for ages. There was a distilling-apparatus in full operation. Around the room were retorts, tubes, cylinders, crucibles, and other apparatus of chemical research.
When platinum crucibles are used with compounds of arsenic or phosphorus, special precautions are necessary to prevent damage. This statement applies to both fusions and ignitions. Fusions with sodium carbonate can be made only in platinum, since porcelain or silica crucibles are attacked by this reagent.
He arose from the stool so suddenly that it went toppling over to fall against the stacked crucibles beneath the bench which lent their clatter to the upset. He stepped out into the night. It was dark, only the stars above him dimly betraying the familiar shapes of mountains, forests, and buildings around.
Platinum has, however, become so valuable that it is liable to theft unless constantly under the protection of the user. As constant protection is often difficult in instructional laboratories, it is advisable, in order to avoid serious monetary losses, to use porcelain or silica crucibles whenever these will give satisfactory service.
At last one day they found him dead before his picture, and they took him up to bury him. The other men looked about in all the pots and crucibles, but they found nothing they had not.
He is blind among his microscopes, unless he sees in the humblest human soul a revelation that dwarfs all the world beside. While he grows gray in ignorance among his crucibles, every girlish mother is being illuminated by every kiss of her child. That house is so far sacred, which holds within its walls this new-born heir of eternity.
The whole of one side of the laboratory was taken up with a large chimney, crucibles, ovens, and such implements as are needed for chemical experiments; tables, loaded with phials, papers, reports, an electrical machine, an apparatus, as Monsieur Darzac informed me, employed by Professor Stangerson to demonstrate the Dissociation of Matter under the action of solar light and other scientific implements.
Ten or twelve of such crucibles are placed in a melting-furnace similar to that used by brass founders; and when the furnace and pots are at a white heat, to which they are raised by a coke fire, they are charged with bar steel reduced to a certain degree of hardness, and broken into pieces of about a pound each.
A sweet, fresh gust blew across my face with a faint odour of the pungent flames that used to flicker under the crucibles of the dispensary. How came I to be lying in Boston Town? Was M. Radisson a myth? Was the northland a dream? I tried to rise, but whelming shadows pushed me down; and through the dark shifted phantom faces.
We can analyze all substances that are brought into our crucibles, tell their combinations and tendencies, give a scientific history of their formation, so far as it is connected with secondary facts, their properties, and their uses; but in each and all, there is a latent natural cause, that baffles all our inquiries, and tells us that we are merely men.
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