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Avicenna also explains the nature of petrifying or incrusting waters, and mentions ærolites, out of one of which a sword-blade was made, but he adds that the metal was too brittle to be of any use. A mere catalogue of some of the works of Avicenna will indicate the condition of Arabian attainment. 1. On the Utility and Advantage of Science; 2. Of Health and Remedies; 3. Canons of Physic; 4.
He fell, and did not move, lying as Melbury afterwards found him. The boy ran away, salving his conscience for the desertion by thinking how vigorously he would spread the alarm of the accident when he got to Hintock which he uncompromisingly did, incrusting the skeleton event with a load of dramatic horrors.
To put the apparatus in operation the cover, D, is first unscrewed, and there is put into the boiler a certain quantity of wood, which has been divided up by a cutting machine of special form. Then the boiler is filled to the proper height with the liquid necessary to dissolve the incrusting materials, the cocks, B, being closed.
Dirt was everywhere, strewing the narrow streets, and incrusting the tall shabbiness of the edifices, from the foundations to the roofs; it lay upon the thresholds, and looked out of the windows, and assumed the guise of human life in the children that Seemed to be engendered out of it. Their father was the sun, and their mother a heap of Roman mud.
In all those cases, we see nothing but the concreted substances or their crystallizations; but, no mark of any solvent or incrusting process is to be perceived.
The wind blue very hard the forepart of last night but abated toward morning; it again arose in the after part of this day and retarded our progress very much. the high lands are broken, the hills higher and approach nearer the river, tho the soil of both hills and bottoms appear equally as furtile as below; it consists of a black looking tome with a moderate portion of sand; the hills and bluffs to the debth of 20 or thirty feet, seemed to be composed entirely of this loam; when thrown in the water it desolves as readily as loaf sugar and effervesses like marle. great appearance of quarts and mineral salts, the latter appears both on the hills and bottoms, in the bottoms of the gullies which make down from the hills it lies incrusting the earth to the debth of 2 or 3 inches, and may with a fether be swept up and collected in large quantities, I preserved several specimines of this salts. the quarts appears most commonly in the faces of the bluffs. no coal, burnt hills, or pumice stone. saw today some high hills on the Stard. whose summits were covered with pine.
It occurs embedded in or incrusting the trap, and also with calcite and apopholite. The only sure place to find it is at the southwest side of an opening through the pile of drift rock under the trestle work of the tramway, between shaft No. 1 and the dump, and within a few feet of a number of wooden vats sunk into the ground seen just before descending the hills and near the edge.
But as Roman wealth and luxury increased coloured marbles were employed for internal decoration; and the effects which the Greeks obtained by the application of pigments, the Romans obtained by the rich hues of precious marbles incrusting their buildings, and durable as these buildings themselves.
In these springs the lime is usually held in solution by an excess of carbonic acid, or by heat if it be a hot spring, until the water, on issuing from the earth, cools or loses part of its acid. The calcareous matter then falls down in a solid state, incrusting shells, fragments of wood and leaves, and binding them together.
They were acquainted with the arts of dyeing and incrusting ivory, and they also possessed some splendid specimens of chryselephantine statuary. Ancient writers, indeed, mention no fewer than one hundred statues of gold and ivory; but they furnish us with no particulars of the mode of executing these colossal monuments of art in a substance which could only be obtained in small pieces.