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Updated: May 4, 2025
There is another process in which galvanism But let us admit that M. Larinski's heart is real gold. In the purest gold there is usually some alloy, to dispense with which resort must be had to the cupel. Do you not know what a cupel is?
"I usually bruise it in the mortar before cooking, without breaking up the fibre too much, and then I heat up the little cupel furnace to about 600 C, and put the steak in on a tripod." Thorndyke laughed outright. "The cupel furnace, too," he exclaimed. "Well, well, 'to what base uses' but I don't know that it is a base use after all.
And on this occasion it may not be Impertinent to mention an Experiment, which I relate upon the Credit of a very Honest man, whom I purposely enquir'd of about it, being my self not very fond of making Tryals with Arsenick, the Experiment is this, That if you Colliquate Arsenick and Copper in a due proportion, the Arsenick will Blanch the Copper both within and without, which is an Experiment well enough Known; but when I enquir'd, whether or no this White mixture being skilfully kept a while upon the Cupel would not let go its Arsenick, which made Whiteness its prædominant Colour, and return to the Reddishness of Copper, I was assur'd of the Affirmative; so that among Mineral Bodyes, some of those that are White, may be far more capable, than those I am reasoning with seem to have known, of Eclipsing others, and of making their Colour Prædominant in Mixtures.
Grains of wheat were the symbol of life, and, by extension, of the resurrection and eternal life. Experiment. Ordinary lead is calcined in a cupel made of cinders or powdered bones; the lead is changed to a cinder which disappears into the cupel, and a button of silver remains. Conclusion. The lead has vanished; what more natural than the conclusion that it has been transformed into silver?
His words had a passion in them not usual in the calm, pure flow most natural to his uttered thoughts; white-hot iron we are familiar with, but white-hot silver is what we do not often look upon, and his inspiring address glowed like silver fresh from the cupel.
The chip is hammered out as thin as paper and weighed on scales so fine and sensitive that if you weigh a two-inch scrap of paper on them and then write your name on the paper with a course, soft pencil and weigh it again, the scales will take marked notice of the addition. The base metals oxydize and are absorbed with the lead into the pores of the cupel.
His words had a passion in them not usual in the calm, pure flow most natural to his uttered thoughts; white-hot iron we are familiar with, but white-hot silver is what we do not often look upon, and his inspiring address glowed like silver fresh from the cupel.
The chip is hammered out as thin as paper and weighed on scales so fine and sensitive that if you weigh a two-inch scrap of paper on them and then write your name on the paper with a course, soft pencil and weigh it again, the scales will take marked notice of the addition. The base metals oxydize and are absorbed with the lead into the pores of the cupel.
All I took from Adelaide were a small set of scales capable of determining the weight of a button down to 20 ozs. to the ton, a piece of cheese cloth to make a screen or sieve, a tin ring 1 1/2 in. diameter, by 1/2 in. high, a small brass door knob to use as a cupel mould, and some powdered borax, carbonate of soda, and argol for fluxes; while for reducing lead I had recourse to the lining of a tea-chest, which lead contains no silver John Chinaman takes good care of that.
You have announced to the millions that there welfare is to be tested by the amount of their wages. Money is to be the cupel of their worth, as it is of all other classes. You propose for their conduct the least ennobling of all impulses.
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