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The floor was strewn with lingerie, hats, shoes, slippers, gloves, stockings, furs, frocks, over which he trod with professional disdain; he broke open her smart little jewel case and took therefrom a glittering assortment of rings, bracelets, and earrings; a horseshoe pin, a gorgeous crescent, and a string of pearls; a platinum and diamond wrist watch, an acorn watch, a diamond collar, several bars of diamonds, rubies and emeralds, and odds and ends of feminine vanity all without so much as pausing to classify them beyond the mere word "junk". All of this dazzling fortune he stuffed carelessly into his pocket.
In order not to multiply the solutions, take the ordinary chloride of gold, used for fixing the impressions, and which is composed of 1 gramme of chloride of gold and 50 grains of hyposulphate of soda, to a quart of distilled water. With respect to chloride of platinum, 4 grains must be dissolved in 3 quarts of distilled water; these two solutions are mixed in equal quantities. Acids.
We have the names in one of the tables arranged in two columns, representing, as you see, two groups platinum, iridium, and osmium constituting one group; and ruthenium, rhodium, and palladium the other. Three of these have the chemical equivalent of 98-1/2, and the others a chemical equivalent of about half that number.
With iron lovely coruscations were exhibited, the boiling vapour flying and burning in all directions; and a platinum wire three feet long was in an instant melted into thousands of minute globules. All this showed the power of electricity to produce intense heat when resistance is opposed to its passage." "It is remarkably human-like in that respect," said Captain Rik, in an under-tone.
Edison was inclined to concur in the prevailing opinion as to the easy destructibility of carbon, but, without actually settling the point in his mind, he laid aside temporarily this line of experiment and entered a new field. He had made previously some trials of platinum wire as an incandescent burner for a lamp, but left it for a time in favor of carbon.
Then the metals of one group have an extreme specific gravity platinum being, in fact, the lightest of the three, or as light as the lightest. Osmium has a specific gravity of 21.4, and is the heaviest body in nature; platinum is 21.15, and iridium the same; the specific gravity of the other three being only about half that, namely, 11.3, 12.1, and 11.8.
He had first a set of small cones set up, which were successively knocked down as the change in the plane of the pendulum slowly brought the pointer under the bob to bear on cone after cone. Secondly, a small cannon was so placed that the first touch of the pendulum pointer against a platinum wire across the touch-hole completed a galvanic circuit, and so fired the cannon.
In a gloomy forest it is frequently difficult to catch the muzzle sight, unless it is of some bright metal, such as silver or platinum; and a broad cut in the breech-sights, if shaped as described, allows a rapid aim, and may be taken fine or coarse at option. The charge of powder must necessarily depend upon its strength.
Then he immersed two wires, one of zinc, the other of platinum, each 1/13th of an inch in diameter, to a depth of 5/8ths of an inch in acidulated water during eight beats of his watch, or 3/20ths of a second; and found that the needle of his galvanometer swung through the same arc, and coloured his moistened paper to the same extent, as thirty turns of his large electrical machine.
In their construction, a large quantity of platinum was used, a metal more valuable, weight for weight, than gold. His purchases had been very heavy, but a checking up of stock used showed that not half of it had been applied to actual construction. The question was "What had become of the missing metal?" and that question it was No. 42's business to answer. Mr.
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