"Silicious" Quotes from Famous Books
 ... the solid matters which are carried down by it. An angular fragment of stone in the course of ages moved in the cavity of a rock makes a deep round excavation, and is worn itself into a spherical form. A torrent of rain flowing down the side of a building carries with it the silicious dust, or sand, or matter which the wind has deposited there, and acts upon a scale infinitely more minute, but according to the same law. The buildings of ancient Rome have not only been liable to the constant operation of the rain-courses, or minute torrents produced by rains, but ...
— Consolations in Travel - or, the Last Days of a Philosopher • Humphrey Davy
... tissue paper, or an old soft silk handkerchief, nor any other such material to wipe the lenses, as is usually advised. It is not, however, these wiping materials that do the mischief, but the dust particles on the lenses, many of them perhaps of a silicious nature, which are always harder than optical glass, and as these particles attach themselves to the wiping material they cut microscopic or greater scratches on the surfaces of the objective in the ...
— On Laboratory Arts • Richard Threlfall
... it, but we flushed several flocks of wild fowl, disturbed by our invasion of their solitude. From Los Banos I had intended to go to Lupang Puti (white earth), where, judging from the samples shown me, there is a deposit of fine white silicious earth, which is purified in Manila and used as paint. I did not reach the place, as the guide whom I had with difficulty obtained, pretended, after a couple of miles, to be dead beat. From the inquiries I made, however, I apprehend that it is a kind ...
— The Former Philippines thru Foreign Eyes • Fedor Jagor; Tomas de Comyn; Chas. Wilkes; Rudolf Virchow.
... cannot be too deeply buried; in the clay lands, or in the more heavy, cold, or moist lands of the north, it may be covered too deep to benefit the first crop; but, if the after cultivation is good, whatever is planted will be sure to be benefitted. Upon granite soils, it will be of less value than silicious or aluminous ones. Though most valuable on poor sandy or worn out old fields like those of Virginia, already described, still it must not be rejected by the owner of any land which can be improved by manure, because this is a manure of the very best and most concentrated ...
— Guano - A Treatise of Practical Information for Farmers • Solon Robinson
... universal in America. The tribes quarried by means of crowbars and picks of wood and bone. They split the silicious rocks with stone hammers, and then chipped them into shape with bone tools. Soapstone for pottery was partly cut into the desired shape in the native ledge, broken or prised loose, and afterwards scraped into form. Paint was excavated ...
— Project Gutenberg Encyclopedia
... never been found in any secondary formation. It is, however, much more common in alluvial grounds than among primitive and pyrogenous rocks. It is found disseminated, under the form of spangles, in the silicious, argillaceous, and ferruginous sands of certain plains and rivers, especially in their junction, at the season of low water, and after storms and temporary floods. It is the only metal of a yellow color; it is readily crystallizable, and always assumes one or more of the symmetrical shapes, such ...
— The Continental Monthly, Vol 3 No 3, March 1863 - Devoted To Literature And National Policy • Various
... frame, constitute parts in their sacred music. They have also an instrument of music which consists of stones, cut into the shape of a carpenter's square, each stone suspended by the corner in a wooden frame. Those which I saw appeared to belong to that species of the silicious genus usually called Gneiss, a sort of slaty granite. In the Keswick museum are musical stones of the same kind, which were picked up in a rivulet at the foot of Skiddaw mountain; but these seem to contain small pieces of black shorl or tourmaline. It is indeed the boast of their historians, ...
— Travels in China, Containing Descriptions, Observations, and Comparisons, Made and Collected in the Course of a Short Residence at the Imperial Palace of Yuen-Min-Yuen, and on a Subsequent Journey thr • John Barrow
... rubbing the blade upon a block of sandstone; the second stage by the use of a hone of finer grain; and the highest polish is attained by rubbing with a leaf whose surface is hard and probably contains silicious particles. At the present time imported ...
— The Pagan Tribes of Borneo • Charles Hose and William McDougall
... gypsum, etc.; sulphur embedded in calcareous limestone; silicious limestone; tripoli, containing fossils ...
— Scientific American Supplement, No. 647, May 26, 1888 • Various
... the polishing slate of Bilin contains, according to Ehrenberg, 40,000 millions of the silicious shells ...
— COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 • Alexander von Humboldt
... gravel is too well known to require description. The grains of quartz sand are either sharp cornered or else rounded pieces of stone of quartz, occasionally mixed with grains of other amorphous pieces of silica—such as horn stone, silicious slate, carnelian, etc.; again, with lustrous pieces of mica, or red and white pieces of feldspar. The gravel used for a tar paper roof must be of a special nature and be prepared for the purpose. The size of its ...
— Scientific American Supplement, No. 821, Sep. 26, 1891 • Various
... of the geological feature of this islet led me to examine the south-east part, which was the most exposed to the weather, and where the disposition of the strata was, of course, more plainly developed. The base is a coarse granular, silicious sandstone, in which large pebbles of quartz and jaspar are imbedded. This stratum continues for sixteen to twenty feet above the water; for the next ten feet there is a horizontal stratum of black schistose rock, which was of so soft a consistence, that the weather had excavated several ...
— The History of Australian Exploration from 1788 to 1888 • Ernest Favenc
... introduce and cultivate the plant[1] on a large scale in France. As his account of the cultivation of pyrethrum is the best we know of we quote here his experience in full, with but few slight omissions: "The soil best adapted to its culture should be composed of pure ground, somewhat silicious and dry. Moisture and the presence of clay are injurious, the plant being extremely sensitive to an excess of water, and would in such case immediately perish. A southern exposure is the most favorable. The best time for putting ...
— Scientific American Suppl. No. 299 • Various
... on both sides recalled the wars of past times, the battle-field, the scenes of horror which took place there, and the return of the victor and his triumph. Sitting or standing figures of diorite, silicious sandstone or hard limestone, bearing inscriptions on their robes or shoulders, perpetuated the features of the founder or of members of his family, and commemorated the pious donations which had obtained for him the favour of the gods: the palace of Lagash contained dozens ...
— History Of Egypt, Chaldaea, Syria, Babylonia, and Assyria, Volume 3 (of 12) • G. Maspero |
