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Updated: May 13, 2025
Rowland adds: "The substances under the head of 'Not in the Solar Spectrum' are often placed there because the elements have few strong lines or none at all in the limit of the solar spectrum when the arc spectrum, which I have used, is employed. Thus, boron has only two strong lines at 2497. Again, the lines of bismuth are all compound, and so too diffuse to appear in the solar spectrum.
It was not then any property possessed permanently by the bismuth, and which merely required the development of magnetism to act upon it, that caused the repulsion; for then the repulsion would have been simply proportional to the strength of the influencing magnet, whereas experiment proved it to augment as the square of the strength.
When he regained consciousness, he was lying on a thick, dusty mattress, his head pillowed on a bundle of cloth that smelled of cotton and dyestuffs. Faces emerged from the gloom around him. Some one was holding a torch over his strange couch. That odd face in bismuth and lampblack was bending over him. "He's come 'round, Mrs. Braddock," he heard this creature say, in a far-off voice.
This instrument, which is called a thermo-electric pile, or more briefly a thermo-pile, consists of thin bars of bismuth and antimony, soldered alternately together at their ends, but separated from each other elsewhere.
The last train was due to leave in twenty minutes, and I lived a good mile from the station, I thrust a few things into a bag, locked my laboratory, and ran as hard as I could to catch it. "It was not until I was in London that it suddenly occurred to me that I had neglected to shut off the current, and that it would continue to pass through the bar of bismuth until the batteries were exhausted.
Rowland's own observations, although, of course, most of them have been given by others: Elements in the Sun, arranged according to Intensity and the Number of Lines in the Solar Spectrum. Not in Solar Spectrum. Antimony, arsenic, bismuth, boron, nitrogen, cæsium, gold, indium, mercury, phosphorus, rubidium, selenium, sulphur, thallium, praseodymium. With respect to these tables, Prof.
Was a columbine really your wife?" "She was," said Joey proudly. "But," he added hastily, "it ain't likely you saw her. She died when Ruby was born." That afternoon David appeared in the ring, once more clad in the striped suit and besmeared with bismuth. He was even more frightened than at his first appearance, when he was driven by another fear.
Running his finger along the eleventh, horizontal series, he continued: "The gold series not the group reads gold, mercury, thallium, lead, bismuth, and other elements known only to myself. For the known elements, however, these groups and series are now perfectly recognized by all scientists; they are determined by the fixed weight of the atom, and there is a close approximation to regularity.
As large a surface as possible must be used, and the dish piled to the rim; then, if the quantity of bismuth is small, the washing with water, alcohol, and ether may be effected without any loss of the element. If small quantities of the metal separate from the dish, they must be collected on a tared filter, and determined separately.
=Bismuth.= The bismuth salts are not poisonous, but may contain arsenic as an impurity, although this is far less common than it was some years ago. =Chromic Acid, Chromate, Bichromate of Potassium.= These act as corrosives when solid or in concentrated liquid forms. In dilute solutions they act as irritants. Used as dyes; have proved fatal more than once.
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