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At the end of half an hour, the inhalation of the salts began to produce a little effect; the breath came more regularly, but that was the only symptom which announced that the swoon might soon terminate. The landau with the high springs arrived.
"Some of the mineral substances which occur in solution in potable waters communicate to the latter the quality of hardness. Hard water decomposes soap, and cannot be efficiently used for washing. The chief hardening ingredients are salts of lime and magnesia.
It lies close beneath the surface, and follows for a length of one hundred and fifty miles the margin of a grand basin or plain; this, from its outline, manifestly must once have been a lake, or more probably an inland arm of the sea, as may be inferred from the presence of iodic salts in the saline stratum. The surface of the plain is 3300 feet above the Pacific. 19th.
"But don't any of the artist-folk fancy children?" asked Imogen. "Yes, they just fancy them and no more. The chemist remarked the other day that children are like certain salts which need not be actualized because the formulae are quite sufficient for practical purposes. I don't see how even Flavia can endure to have that man about."
Moreover, her good feeling towards him was useful, for reasons which will shortly appear. Running down the ladder, cap in hand, he offered her his assistance. "Thank you, Mr. Frere. These horrid ladders. I really he, he quite tremble at them. Hot! Yes, dear me, most oppressive. John, the camp-stool. Pray, Mr. Frere oh, thank you! Sylvia! Sylvia! John, have you my smelling salts?
Thus, the animal can only raise the complex substance of dead protoplasm to the higher power, as one may say, of living protoplasm; while the plant can raise the less complex substances carbonic acid, water, and nitrogenous salts to the same stage of living protoplasm, if not to the same level. But the plant also has its limitations.
Salts and nitrogenous foods are essential to life. Hydrogen is a very light gas, without odor, taste or color. It is a necessary constituent of all growing, living things. It is plentifully supplied in water. All acids contain hydrogen and so does the protoplasm of the body. Nitrogen is also a colorless, tasteless, odorless gas.
Of course they were sympathetic over Madam Bartlett's accident the Martels' sympathy was always on tap for friend or foe, but that did not interfere with a frank enjoyment of Quin's spirited account of her high-handed treatment of the family, especially the incident of the smelling salts. "She ought to belong to the Tank Brigade," said Rose. "'Treat 'em rough' is her motto."
The fact that the weight of metal deposited in this way from its salts is proportional to the current, has been utilised for measuring the strength of currents with a fine degree of accuracy. If, for example, the tubes of the voltameter described on page 38 were graduated, the volume of gas evolved would be a measure of the current.
Then set the pitcher for a while in ice. Lastly, strain the infusion into another vessel and transfer it to tumblers, putting into each glass some more sugar and a bit of ice. This beverage will be found delicious. Fold in a white paper a mixture of one drachm of Rochelle salts and twenty-five grains of carbonate of soda, in a blue paper twenty grains of tartaric acid.
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