United States or Bouvet Island ? Vote for the TOP Country of the Week !
The southern range of tables is numbered from 14 to 23; and the northern range from 38 to 47. In the next case are the Oxides of Copper; bismuth; red oxide of zinc; cobalt ochres; oxide of uranium; and pitch ore. In the nineteenth case are the Oxides of Lead; and in the twentieth are the first of the oxides of electro-negative substances.
In the case with these meteoric specimens of native iron are specimens of native Copper not often found in a pure state; native Lead, of meteoric origin; one specimen, exhibited in the form of a medal, having been cast out of the crater of Vesuvius about two hundred years ago; and native Bismuth, which expands as it cools.
It was found by Beck of Chicago that the injection of bismuth paste is frequently followed by healing of the sinus, and that, if one injection fails to bring about a cure, repeating the injection every second day may be successful. Some caution must be observed in this treatment, as symptoms of poisoning have been observed to follow its use.
Morphine may be given hypodermically to the large animals after a period of six to eight hours following the administration of the physic. The following formula is quite useful in checking diarrhoea: salol one-half ounce, bismuth subnitrate one ounce, and bicarbonate of soda two ounces.
In any case it is necessary to disinfect the track, and, it may be, to remove the unhealthy granulations lining it, by means of the sharp spoon, or to excise it bodily. To encourage healing from the bottom the cavity should be packed with bismuth or iodoform gauze.
If they manifest themselves, an injection of warm olive oil should be given; the oil, left in for twelve hours or so, forms an emulsion with the bismuth, which can be withdrawn by aspiration. Iodoform suspended in glycerin may be employed in a similar manner.
'The effect, he says, 'occurs at a single pole; and it is then striking to observe a long piece of a substance so diamagnetic as bismuth repelled, and yet at the same moment set round with force, axially, or end on, as a piece of magnetic substance would do. The effect perplexed him; and in his efforts to release himself from this perplexity, no feature of this new manifestation of force escaped his attention.
Some substances, like arsenic, antimony and bismuth, are too brittle to be used alone. The only metals which can be used alone are aluminum, zinc, iron, tin, copper, lead, mercury, silver, gold and platinum." "What is bronze, of which all the ancient guns were made?" "That is a combination of copper and tin.
This property of generating a current of electricity by contact under the influence of heat is not confined to bismuth and antimony, or even to the metals, but is common to all dissimilar substances in their degree. In the following list of bodies each is positive to those beneath it, negative to those above it, and the further apart any two are in the scale the greater the effect.
Word Of The Day