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Updated: May 12, 2025
If the supply of calcium in the food is too small, the bones and the teeth suffer, for the blood removes the calcium from these structures. Growing children need more calcium proportionately than do adults. This is without doubt the reason pregnant women suffer so much from softening of the teeth.
"We do not know the exact weight of the hydrogen atom, but we do know its relative weight. If the hydrogen atom weighs one then other atomic weights are as follows: 12 for carbon 14 for nitrogen 16 for oxygen 24 for magnesium 31 for phosphorus 32 for sulfur 39 for potassium 40 for calcium 56 for iron "This means that the iron atom is fifty-six times as heavy as the hydrogen atom.
These authors in no sense claim to cure glaucoma, but to ameloriate it and reduce the tension. Weekers has used the salts of calcium, 3 grams a day, with success in so far as lowering of tension is concerned, although it must be stated, as a reviewer of his work has said, that his recommendation of this drug in these respects is poorly supported.
The scanty volume is maintained by the very limited inflow of acidulated percolating water which reaches the small receiving basin charged with calcium carbonate; and being cold, the charge is being precipitated on the bottom instead of forming a crust over the surface as in former times when the controlling influence was a degree of heat sufficient to sustain solid matter without disturbing motion.
The lights were lowered, a single calcium playing with its soft and silvery rays upon his face and shoulders. The expectant audience scarcely breathed as he began his theme. It was pity pity molded into a concord of beautiful sounds, and when he began the second movement it was but a continuation of the first; his fingers sought but one string, that of pity.
Kolloide!, 10 , 132-146. A good grade of material should be secured. It can be successfully used for the titration of hydrochloric, nitric, sulphuric, phosphoric, and sulphurous acids, and is particularly useful in the determination of bases, such as sodium, potassium, barium, calcium, and ammonium hydroxides, and even many of the weak organic bases.
Other elements having two-handed atoms are magnesium and calcium. Strange to say, the sulfur atom has six hands but sometimes uses only two, the others seemingly being clasped together in pairs. I will write it out for you, thus: Hydrogen sulfid: H-S-H or H2S Sulfur dioxid: O=S=0 or S02
The sodium of the latter combines with the silicic acid of the silicate, with the evolution of carbon dioxide, while about two thirds of the aluminium forms sodium aluminate and the remainder is converted into basic carbonate, or the oxide. The calcium and magnesium, if present, are changed to carbonates or oxides.
In laryngismus in the same way we may suppose that the reflex path is made easy and the resistance lowered by constant use. Fortunately the spasms are not usually difficult to control. Calcium bromide, in doses of from two to four grains, according to age, three times daily, is generally successful with or without the addition of chloral hydrate in small doses.
These slabs are composed of crystals of uniform size and of a pale green tint. But the geodes show some striking combinations of both crystals and colors with an exterior formed like box work, composed of a very heavy dark material said to be a mixture of barium, calcium and iron.
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