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Updated: June 2, 2025
Zorzi had not poured out the specimen on the table as he had done when the glass was coloured; on the contrary he had taken some on the blow-pipe and had begun to work with it at once, for the three great requisites were transparency, ductility, and lightness.
Hence either of the two former of these may be melted by the flame of a blow-pipe very near the fingers which hold it without burning them; and the last, by being confined on the surface of animal bodies, in the interstices of their fur or wool, prevents the escape of their natural warmth; to which should be added, that the hairs themselves are imperfect conductors.
A plume-quill from the wing of the ibis served me for a blow-pipe. I saw the bladder-like skin expand, until I was surrounded by objects like great sausages. Those were tied together, and fastened to my body, and then, with a plunge, I entered the waters of the lake, and floated downward.
The dark-browed man had just collected a heavy lump of glass on the end of his blow-pipe, and was blowing into it before giving it the first swing that would lengthen it out. He and Piero exchanged glances, unnoticed by Zorzi, who had become almost unconscious of their hostile presence.
To do a survey or make a bridge or lay a telephone is all in the day's work. But your sapper is a man of ideas, and is for ever seeking out new inventions. So he has turned his attention to chemistry, and "R.E." has a chemical corps which has put aside the blow-pipe and the test-tube at home to come out and study the applied chemistry of war.
To-day we applied the principle of the coffer-dam to the replacement of the copper around our delivery or blow-pipe, some three feet below water. The operation proved quite simple and easy of accomplishment. Getting ready for sea.
These generally sit high up in the tall and tufted trees, but still are not out of the Indian's reach, for his blow-pipe, at its greatest elevation, will send an arrow three hundred feet. Silent as midnight he steals under them, and so cautiously does he tread the ground that the fallen leaves rustle not beneath his feet.
The Zeolites, above mentioned, so named from the manner in which they froth up under the blow-pipe and melt into a glass, differ in their chemical composition from all the other mineral constituents of volcanic rocks, since they are hydrated silicates containing from 10 to 25 per cent of water.
In the process of joining such parts as the handle and spout by hard solder, that is to say, solder as difficult to melt as the main body of the object, one of the most valuable inventions for chemical processes, the blow-pipe, is employed with the aid of two other great scientific aids of modern times.
Siu heard with surprise all she had to say. He thought to himself that it was lucky he did not bring up to the house the birds which he had killed in the jungle, and that he had hidden them with his blow-pipe and quiver containing poisoned darts in the brushwood near the well.
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