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Updated: May 16, 2025
Some geologists are of opinion that the waters impregnated with this oxide were prejudicial to living beings, others that strata permeated with this oxide would not preserve such fossil remains. In regard to the two types, the Old Red Sandstone and the Devonian, I shall first treat of them separately, and then allude to the proofs of their having been to a great extent contemporaneous.
I took it because I knew that a gas and it has proved to be nitrous oxide is absorbed through the lungs into the circulation and its presence can be told for a considerable period after administration."
It is possible to dissolve the arsenious oxide directly in a solution of sodium bicarbonate, with gentle warming, but solution in sodium hydroxide takes place much more rapidly, and the excess of the hydroxide is readily neutralized by hydrochloric acid, with subsequent addition of the bicarbonate to maintain neutrality during the titration.
The infinite hues and markings of the coloured marbles have all been painted by Nature with one material only, variously proportioned and applied the oxide of iron. The varieties of marble are mainly caused by the different degrees in which this substance has pervaded them. They are variable mixtures of the metamorphous carbonates of protoxide of iron and lime.
I have asserted that I can produce, from rapidly breathing common air at the rate of a hundred respirations a minute, a similar effect to that from ether, chloroform, and nitrous oxide gas, in their primary stages; and I can in this way render patients sufficiently insensible to acute pain from any operation where the time consumed is not over twenty to thirty seconds.
Some experiments made at Mexico, conjointly with Senor del Rio, led me to think that the rocks of Atures, which blacken the paper in which they are wrapped,* contain, besides oxide of manganese, carbon, and supercarburetted iron.
Then a greenish white solid sublimed, and this was found to be aluminic ethylate. This is therefore the second known organometallic body, containing oxygen, which is capable of distillation, cacodylic oxide being the other. Prof.
Local Treatment. The absorption of a subcutaneous gumma is often hastened by the application of a fly-blister. When a gumma has broken on the surface and caused an ulcer, this is treated on general principles, with a preference, however, for applications containing mercury or iodine, or both. If a wet dressing is required to cleanse the ulcer, black wash may be used; if a powder to promote dryness, one containing iodoform; if an ointment is indicated, the choice lies between the red oxide of mercury or the dilute nitrate of mercury ointment, and one consisting of equal parts of lanolin and vaselin with 2
"To sum up, I claim as the distinctive characters of my pile: "1. The use of the potassic or sodic alkaline liquid conjointly with chloride of silver, and the oxide of the same, that forms through the immersion of the carbon in a chloridizing bath. The use of retort or other carbon covered with the salt of silver above specified. The arrangement and construction of my pile as I have described."
Fe O .................................. 84.9 Oxide of manganese........................... 9.2 Water........................................ 1.9 Quartz....................................... 4.1 100.1 Compact Ore. Fe O and traces of manganese.......... 99.6 Quartz....................................... 1.1 100.7 Situation of the Forges.
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