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Updated: May 1, 2025
They had hoofs, single hoofs, not cloven. They were not like any Earth animal. But horns and hoofs will appear in any system of parallel evolution. It would seem even more certain that proteins and amino acids and such compounds as hemoglobin and fat and muscle-tissue should be identical as a matter of chemical inevitability. These creatures had teeth and they were herbivorous.
But Fabroni, full of the then novel conception of acids and bases and double decompositions, propounded the hypothesis that sugar is an oxide with two bases, and the ferment a carbonate with two bases; that the carbon of the ferment unites with the oxygen of the sugar, and gives rise to carbonic acid; while the sugar, uniting with the nitrogen of the ferment, produces a new substance analogous to opium.
"What is phosphoric acid? Well, the professor of chemistry says it is a compound containing three atoms of hydrogen, one of phosphorus, and four of oxygen. It is a syrupy liquid and one of the strongest mineral acids. In concentrated form it is as caustic as oil of vitriol. Why, here you have a Century dictionary. That should tell what phosphoric acid is.
But carbonic acid, silica, sulphurous acid, have no hydrogen in their composition; that property cannot therefore be connoted by the term, unless those substances are no longer to be considered acids.
"Doesn't he know what you contemplate?" "Not exactly. You see when he came, that time I was overcome by the fumes from the acids, everything was so upset that I didn't get a chance to tell him. He's been away on business ever since, but returned yesterday. I certainly hope that he goes with us. Ned Newton is coming, and with you, and Koku and myself, it will be a nicer party."
The conversion of the limestone and these and many other instances into a siliceous rock, effervescing slowly with acids, would be difficult of explanation, were it not ascertained that such limestones are always impure, containing grains of quartz, mica, or feldspar disseminated through them.
Aniline is a weak base and forms salts with the mineral acids. Aniline hydrochloride forms large colourless tables, which become greenish on exposure; it is the "aniline salt" of commerce. The sulphate forms beautiful white plates. Although aniline is but feebly basic, it precipitates zinc, aluminium and ferric salts, and on warming expels ammonia from its salts.
I can find no record of any having been obtained between 197 and 221, so that the further examination on which I am now engaged may show this unusual number to be due to this oil containing some new fatty acid in combination. The Fatty Acid. The acids produced by adding acid to the potash soap formed in this case a cake on cooling, of a much deeper color than I have before obtained.
This may be of reflex character, as seen in the shock produced by the pain caused by corrosive poisons, or the poison may exert a special action on certain structures, as belladonna on the cells of the brain, strychnine on the motor nerve cells of the spinal cord. In Both Ways. Certain poisons, as carbolic or oxalic acids, act in this way.
My friend Tom Smith and I made it a rule and in this we were encouraged by his father that, so far as was possible, we ourselves should actually make the acids and other substances used in our experiments. We were not to buy them ready made, as this would have taken the zest out of our enjoyment.
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