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Updated: May 5, 2025
First its elements passed through the stage of fire, then through the stage of water, then merged into the stage of air. More and more the aerial elements oxygen, carbon, nitrogen have entered into its constituents and fattened the soil. The humanizing of the earth has been largely a process of oxidation.
Mayer, while surgeon to a Dutch India vessel cruising in the tropics, had observed that the venous blood of a patient seemed redder than venous blood usually is observed to be in temperate climates. He pondered over this seemingly insignificant fact, and at last reached the conclusion that the cause must be the lesser amount of oxidation required to keep up the body temperature in the tropics.
It is well understood that fat may disappear with great rapidity under certain conditions; many maladies are accompanied by speedy emaciation; therefore, as fat never passes into the secretions, at least not in appreciable quantities, it probably undergoes transformation, perhaps by oxidation or a form of fermentation, the final results of which are, directly or indirectly, water and cadaveric acid.
Also, the leaves turn to gold through oxidation, and robins pair for life. Leonardo also wrote at this time on the movements of the clouds, the broken strata of rocks, the fertilization of flowers, the habits of bees, and a hundred other themes which fill the library of notebooks that he left. Meanwhile, Cesare Borgia was getting a trifle impatient about the building of his forts.
The metal which had been destroyed is revivified by the grains of wheat and the action of fire. Is this not to perform the miracle of the resurrection? No objection can he raised to this interpretation, as long as we are ignorant of the phenomena of oxidation, and the reduction of oxides by means of carbon, or organic substances rich in carbon, such as sugar, flour, seeds, etc.
Direct oxidation or combustion of the carbon and hydrogen contained in the food, or in the tissues themselves; the division of alimentary substances into respiratory, or non-azotized, and azotized, these doctrines are familiar even to the classes in our high-schools. But this simple statement is boldly questioned. Such is the well-grounded statement of Robin and Verdeil.
He found that, while the radiating power of clean lead was only 19, it rose to 45 when tarnished by oxidation, that the radiating power of plumbago was 75, and that of red lead 80. He also discovered that, while the radiating power of gold, silver, and polished tin was only 12, that of paper was 98, and lamp black no less than 100.
Further study will reveal the fact that the difference is due to the lack of oxidation in the case of the glacial detritus. River muds forming slowly and during long-continued exposure to the action of the air have their contained iron much oxidized, which gives them a part of their darkened appearance. Moreover, they are somewhat coloured with decayed vegetable matter.
In the presence of air this ferment oxidizes sugar by bringing oxygen to bear upon it; in the absence of air it decomposes the sugar by taking away oxygen from one group of atoms of the molecule of sugar and bringing it to act upon other atoms; on the one hand yielding a product of alcohol by reduction, on the other hand a product of carbonic acid gas by oxidation."
The great cause of this I believe to be due to the fact that the parties who usually operate elevators are the very ones who know least about them; the corrosion of pistons, crystallization and oxidation of cables, and many other disorders common to elevators, being matters they do not comprehend.
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