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Updated: May 20, 2025
It is, perhaps, as well to add that, as the oxygen in the atmosphere tends to redden litmus paper, it should not be left exposed to the air, but should always be kept in a glass-stoppered bottle.
They're just what I'd fancy. John looked doubtful. 'I know a place that isn't so very far off, where they keep groceries, he said. 'But I don't know whether they keep ginger-beer in glass-stoppered bottles, or if they keep that particular sort of biscuits. However, we'll try. Benson slept a good deal that day.
PROCEDURE. Fill a glass-stoppered burette with the permanganate solution, observing the usual precautions, and fill a second burette with the ferrous sulphate solution prepared for use with the potassium bichromate. The permanganate solution cannot be used in burettes with rubber tips, as a reduction takes place upon contact with the rubber.
The acid solution may be placed in a plain or in a glass-stoppered burette as may be more convenient, but the alkaline solution should never be allowed to remain long in a glass-stoppered burette, as it tends to cement the stopper to the burette, rendering it useless. It is preferable to use a plain burette for this solution.
In case of need, the ferricyanide can be purified by adding to its solution a little bromine water and recrystallizing the compound. PROCEDURE. Fill one burette with each of the solutions, observing the general procedure with respect to cleaning and rinsing already prescribed. The bichromate solution is preferably to be placed in a glass-stoppered burette.
Then she cried a few minutes very softly to herself; for no one can die without some little regret, some consciousness of the unique solemnity of the occasion. At last she rose and moved over to her desk. Out of it she took a small glass-stoppered phial, that a scientific friend had given her long ago for use in case of extreme emergency. It contained prussic acid.
More than that, they were human bones; though whether the remains of one man, or of two or three men, what with calcination and ashes, and what with a poor practical knowledge of anatomy, I can't undertake to say. When I got aboard again I opened the bottle, which was oilskin-covered as you see, and glass-stoppered as you see.
The doctor looked across to the Provincial and made a hopeless little movement of the shoulders, accompanied by an almost imperceptible elevation of the eyebrows. The Jesuit replied by looking meaningly at the small glass-stoppered bottle. Then the doctor muttered: "As you will!" He had laid his instruments out upon the mattress the gas was turned up as high as it would go. Everything was ready.
He took from his pocket a slender box or tube of light wood, removed the screw cap, and drew out a glass-stoppered bottle. "This bottle contains hydrochloric acid," said Percy. "It is often incorrectly called 'muriatic acid. It consists of two elements, hydrogen and chlorin, from which its name is derived. But you are perhaps already familiar with the chemical elements."
He heard something jingle in the pockets, and forgetting for the moment what it could possibly be, thrust his hand in, and pulled out a glass-stoppered bottle of ozak. He held it out at arm's length, and stared at it for some moments like a man hypnotized. "Holy Saint Peter!" he cried, "to think that I should have forgotten this!" He filled the tin basin with water, and placed it on the table.
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