"Filtration" Quotes from Famous Books
 ... east-wind blows. In this slit, by the help of your knife to open it, he directs that a leaf of the tree be inserted, first fitted to the dimensions of the slit, from which the sap will distil in manner of filtration: Take away the leaf, and the bark will close again, a little earth being clapped to the slit. Thus the Knight for any tree. But we have already shew'd how the birch is to be treated: Fasten therefore ...
— Sylva, Vol. 1 (of 2) - Or A Discourse of Forest Trees • John Evelyn
... are required to be "light-tight," such as those used in photographic work, are generally formed by slightly grooving the frame and inserting a strip of black velvet. The friction of the high pile of the velvet prevents the filtration ...
— Woodwork Joints - How they are Set Out, How Made and Where Used. • William Fairham
... filtred and evaporated the Lixivium, as is usual; I got nothing from it but a kind of Cynder, a little saltish, and in so small a quantity, that I did not give myself the trouble to reiterate the Calcination, Dissolution, Filtration, and Evaporation; for I should hardly have got five or six Grains ...
— The Natural History of Chocolate • D. de Quelus
... name of Judy and our country! we call upon the proper authorities to have this invaluable apparatus erected in the lobby of the House of Commons, and so, by compelling every member to submit to the operation of filtration, cleanse the house from its present accumulation of corruption, though we defy Stuckey himself to ...
— Punch, or the London Charivari, Vol. 1, August 21, 1841 • Various
... engaged the British detachments and stragglers wherever they were encountered. Withdrawn as the Merediths might be, the principal achievements were too important not to finally reach them, and by infinite filtration they heard of how the Waldeckers had been attacked at Springfield and put to flight, how the British had abandoned Hackensack and Newark without waiting for the assaults, and how at Elizabethtown they had been surprised and captured. ...
— Janice Meredith • Paul Leicester Ford
... olive-green colored precipitate of arsenite of copper, while the supernatant liquid contains free acetic acid. After a while the precipitate becomes gradually crystalline, at the same time forming a beautiful green pigment, which is separated from the liquid by filtration, and after washing and carefully drying is ready for use. The mode of preparing this pigment on a large scale was originally devised by M. Braconnot, as follows: 15 kilos. of sulphate of copper are dissolved in the smallest quantity of boiling ...
— Scientific American Supplement, No. 455, September 20, 1884 • Various
... of the skin, in which they are of immediate service in allaying the pain arising therefrom: great quantities are cultivated in Surrey, and brought to the London markets. It is remarkable of this plant, that its juice, when purified by filtration, appears of a dilute yellowish colour upon the admixture of an equal quantity of rectified spirit of wine; but forms a beautiful white, light coagulum, like the finer kinds of pomatum: this proves extremely volatile; for when freed from the aqueous ...
— The Botanist's Companion, Vol. II • William Salisbury
... his valuable paper on the collodion process, published in the second number of the Journal of the Photographic Society, objects to filtration on the ground that the silver solution is often injured by impurities contained in the paper. It may be worth while to state, that lime, and other impurities, may be removed by soaking the filter for a day or two, before it is used, in water acidulated with nitric acid; after ...
— Notes and Queries, Number 182, April 23, 1853 • Various
... Newton explains his views respecting the ether. He considers that the ether accounts for the refraction of light, the cohesion of two polished pieces of metal in an exhausted receiver, the adhesion of quick-silver to glass tubes, the cohesion of the parts of all bodies, the phenomena of filtration and of capillary attraction, the action of menstrua on bodies, the transmutation of gross compact substances into aerial ones, and gravity. If a body is either heated or loses its heat when placed ...
— The World's Greatest Books, Vol IX. • Edited by Arthur Mee and J.A. Hammerton
... in the color of the ash if that is the substance used for adulteration. If lime has been added, it can be detected by dissolving the ash in muriatic acid and separating the sand, loam and iron, if present, by filtration, and then adding oxalate of ammonia to the liquid. If it shows more than a mere trace of lime, ...
— Guano - A Treatise of Practical Information for Farmers • Solon Robinson
... bearings by noting the moss growing on the trunks of the trees, the direction in which their principal branches pointed, and a hundred other apparently trivial signs. But it was a weird place in which to be alone, for, apart from the green twilight produced by the filtration of the light through the dense canopy of foliage that shut out all view of the sky overhead, the under-brake was so thick that it was seldom possible to see more than a yard or two ahead, and it was impossible to say what strange or ...
— Two Gallant Sons of Devon - A Tale of the Days of Queen Bess • Harry Collingwood
... they run through cultivated fields, and particularly where they pass in the neighborhood of houses, their waters should never be looked upon as being drinkable,—except after being boiled or properly filtered. Inasmuch as adequate filtration is exceedingly difficult to carry out, and requires a somewhat extensive and costly plant, this is, as a rule, not feasible for the dweller in country districts, and boiling, therefore, remains the only satisfactory method of ...
— Health on the Farm - A Manual of Rural Sanitation and Hygiene • H. F. Harris
... produced is endowed with properties quite different from common air, they conclude, without experimental proofs, that this air has united with foreign materials, and that it must be purified from these admixed foreign particles by agitation and filtration with various liquids. I believe that there would be no hesitation in accepting this opinion, if one could only demonstrate clearly by experiments that a given quantity of air is capable of being completely ...
— Discovery of Oxygen, Part 2 • Carl Wilhelm Scheele
... Impurities in Water; Mineral Impurities; Organic Impurities; Interpretation of a Water Analysis; Natural Purification of Water; Water in Relation to Health; Improvement of Waters; Boiling of Water; Filtration; Purification of Water by Addition of Chemicals; Ice; Rain Waters; Waters of High and Low Purity; Chemical Changes which Organic Matter of Water Undergoes; Bacterial Content of Water; Mineral Waters; Materials ...
— Human Foods and Their Nutritive Value • Harry Snyder
... much our friend in this matter. Nature is always clarifying her water and her wine. No filtration can be so perfect. She does the same thing by books as by her gases and plants. There is always a selection in writers, and then a selection from the selection. In the first place, all books that get fairly into the vital air of the world were written by the successful ...
— The Atlantic Monthly, Vol. I., No. 3, January 1858 - A Magazine of Literature, Art, and Politics • Various
... the process of filtration was by no means necessary; by the mere mixing of an alkaline solution with a proper quantity of soil, as by shaking them together in a bottle, and allowing the soil to subside, the same result was obtained. The action, therefore, was in no way referable to any physical law brought into operation ...
— Talks on Manures • Joseph Harris
... is as follows:—"The ore is crushed to a certain fineness, depending on the character of the gangue. It is then placed in leaching vats, with false bottoms for filtration, similar to other leaching plants. A solution of cyanide of potassium and other chemicals of known percentage is run over the pulp and left to stand a certain number of hours, depending on the amount of metal to be extracted. It is then drained ...
— Getting Gold • J. C. F. Johnson
... is to underdrain the land, and then to distribute the sewage on the principle of intermittent downward filtration. This is rather expensive, and a customer is rarely willing to pay the bills for the same. I should always advise it as the best; but where not allowed to do so, I have had fair success with shallow French drains connecting with ...
— Scientific American Supplement, No. 484, April 11, 1885 • Various
... utilities is, however, not yet exhausted; there is one more with which we bring our notice to a close. After the washing of the fibre, a great quantity of refuse membraneous substance is obtained by filtration. This being moulded into the form of bricks, and dried, becomes excellent fuel, and gives off so much gas from the resin which it contains, that it may be used for lighting as well as heating. The making of a thousand hundredweights of ...
— Chambers's Edinburgh Journal, No. 458 - Volume 18, New Series, October 9, 1852 • Various
... Vessels (Enamelled), Steam Superheated Plant, Hot-air Plant.—Spirit Varnish Manufacture: Cold Solution Plant, Mechanical Agitators, Hot Solution Plant, Jacketted Pans, Mechanical Agitators, Clarification and Filtration, Bleaching Plant, Storage Plant.—Manufacture, Characteristics and Uses of the Spirit Varnishes yielded by: Amber, Copal, Dammar, Shellac, Mastic, Sandarac, Rosin, Asphalt, India Rubber, Gutta Percha, Collodion, Celluloid, Resinates, ...
— The Dyeing of Cotton Fabrics - A Practical Handbook for the Dyer and Student • Franklin Beech |
