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Updated: June 12, 2025
Such a moralist would necessarily be shocked by the changes that have come upon our theatre within even the last twenty-five years by the advent of "the sensation drama," invented and named by Dion Boucicault; by the resuscitation of the spectacle play, with its lavish tinsel and calcium glare and its multitudinous nymphs; by the opera bouffe, with its frequent licentious ribaldry; by the music-hall comedian, with his vulgar realism; and by the idiotic burlesque; with its futile babble and its big-limbed, half-naked girls.
The parathyroid glands are probably closely concerned in regulating the retention and excretion of salts, and especially of calcium, a circumstance which becomes of significance when we remember how frequently rickety changes, tetany, and other convulsive seizures form part of the clinical picture which we are now considering.
The purest magnesian limestone consists of a double carbonate of calcium and magnesium, called dolomite." "But I have heard that magnesian lime is bad for soils," said Mr. Thornton. "That is true," Percy replied, "and so is ordinary lime bad for soils.
As a matter of fact, a piece of the hatch, when subjected to heat, blackens, proving the presence of an organic glue cementing the mineral matter. The solution becomes muddy if oxalate of ammonia be added; it then deposits a copious white precipitate. These signs indicate calcium carbonate. I look for urate of ammonia, that constantly recurring product of the various stages of the metamorphoses.
In the midst of it, as the people are gathering, up with the ladder, and down with me in your triumphant arms. Pity we can't have a calcium light for that scene. If there should be any failure ... of course there can't be ... then a note of warning will reach me, with any instructions you may wish to give me ... to the old address of course." Both laughed heartily at this allusion.
It should be noted, too, that certain crops which are exceedingly important for economic systems of permanent agriculture require very large amounts of calcium as plant food. Thus a four-ton crop of clover hay takes about 120 pounds of calcium from the soil, or the same amount as of potassium; while such a crop of alfalfa requires about 145 pounds of calcium, but only 96 pounds of potassium.
The Prince, with his suite and a number of city officials, stood on the hotel balcony, while five thousand men in uniform, with apparatus and many bands, marched by. Fireworks were set off, the brilliant beams of the calcium light then a novelty were thrown upon the standing, boyish figure of the Prince, thousands of flaring torches danced and waved against the darkness of the opposite square.
Oxalic acid is a product of oxidation in living cells, and has strong poisonous properties. To get rid of it, the chemist inside the body, by the aid of calcium salts, forms insoluble compounds of it, and thus casts it out. To separate substances from each other by filtration, or by shaking with suitable liquids, is one of the daily tasks of the chemist.
The bogs of the Ems Valley alone cover 13,000 square miles; and Dr. Frank proposes the erection in that district of a 10,000 horse power electric station, which would yearly consume 200,000 tons of peat, or the product of 200 acres. He would use the electrical energy on the Dortmund and Emshaven Canal, and for the manufacture of calcium carbide.
Certain mineral elements, such as iron, sodium, potassium, calcium, magnesium, phosphorus, sulphur, etc., which are among the important constituents of the human body, may be taken in the organic form in fruits and vegetables, or in herb extracts and the vitochemical remedies, in large amounts, in fact, far beyond the actual needs of the body, but they will not show in the iris of the eye, because they are easily eliminated from the system.
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