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adjective
Porous  adj.  Full of pores; having interstices in the skin or in the substance of the body; having spiracles or passages for fluids; permeable by liquids; as, a porous skin; porous wood. "The veins of porous earth."






Collaborative International Dictionary of English 0.48








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"Porous" Quotes from Famous Books



... Rudolph rose majestically, and smiled and bowed. Heigh-ho! man accepts applause so easily; the noise, not the heart behind it; the uproar, not the thought. Man usually fools himself when he opens his ears to these sounds, often more empty than brass. But so porous is man's vanity that it readily absorbs any kind of noise ...
— Half a Rogue • Harold MacGrath

... more than two or three houses. The sun was exceedingly powerful, and the ride devoid of all interest. There is very little water in this "traversia," and in our second day's journey we found only one little pool. Little water flows from the mountains, and it soon becomes absorbed by the dry and porous soil; so that, although we travelled at the distance of only ten or fifteen miles from the outer range of the Cordillera, we did not cross a single stream. In many parts the ground was incrusted with a saline efflorescence; hence we had the same salt-loving plants ...
— A Naturalist's Voyage Round the World - The Voyage Of The Beagle • Charles Darwin

... very noisy in your chimneys. But there has also been a great deal of sunshine with the gales, and the exposure of your house to south-east has, on most days, given us a sheltered walk. Moreover, your soil is so porous and absorbent, that one gets dry walking immediately after rain. I have only been kept indoors two days ...
— Memoirs of the Life and Correspondence of Henry Reeve, C.B., D.C.L. - In Two Volumes. VOL. II. • John Knox Laughton

... moral inference, the tendency and the result, than the appearance of things, however imposing or expressive, at any given moment of time.... We should say that the eye in warmer climates drinks in greater pleasure from external sights, is more open and porous to them, as the ear is to sounds; that the sense of immediate delight is fixed deeper in the beauty of the object; that the greater life and animation of character gives a greater spirit and intensity of expression to the face, making finer subjects for history and ...
— Hazlitt on English Literature - An Introduction to the Appreciation of Literature • Jacob Zeitlin

... little or nothing that can be called pus is present, merely a little transparent fluid, while at the same time there is an entire absence of the unpleasant odour invariably perceived when water dressing is changed. Here the clean metallic surface presents no recesses like those of porous lint for the septic germs to develope in, the fluid exuding from the surface of the granulations has flowed away undecomposed, and the result is the absence of suppuration. This simple experiment illustrates the important fact that granulations have no inherent tendency to form pus, but do so ...
— The Harvard Classics Volume 38 - Scientific Papers (Physiology, Medicine, Surgery, Geology) • Various

... the hills being very light and porous, careless hands are apt to drop the seed too deep. Care should be taken not to drop the seed all in one spot, but to scatter them over a surface of two or three inches square, that each plant may have room to develop ...
— Cabbages and Cauliflowers: How to Grow Them • James John Howard Gregory

... and crevices made in the rocks from atmospheric influences, and did not again reappear until they had reached the foot of the precipice which terminated the tableland whence they sprang; here they came foaming out in a rapid stream which had undoubtedly worked strange havoc in the porous sandstone rocks among which it held ...
— Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 1 (of 2) • George Grey

... valleys is occupied by a raging torrent from the look of the confused water-worn boulders. Now among the rocks there are only isolated pools, for the weather for a fortnight before I left Victoria had been fairly dry, and this rich porous soil soaks up an immense amount of water. It strikes me as strange that when we are either going up or down the hills, the ground is less muddy than when we are skirting their summits, but it must be because on the inclines the rush of water clears the soil away down to the bed rock. ...
— Travels in West Africa • Mary H. Kingsley

... sixteen, three of which were uninhabited. They all face the sea; and run east and west. On account of the very high winds the walls are built about four feet thick at the gable ends, and about two feet at the sides. Most of the stone they are built of is porous, in consequence of which the walls on the south side are very damp and are often covered on the inside with a green slime. The houses are thatched with a reed-like grass called tussock, which is grown ...
— Three Years in Tristan da Cunha • K. M. Barrow

... have an exterior coating which is porous and pervious to water when it is unripe. But when it fully ripens this coating is chemically changed into a thin, impervious coating of a cork-like structure, through which water cannot pass, and as a result potatoes, and fruit, will keep ...
— The Wonder Island Boys: The Tribesmen • Roger Finlay

... the head like a giant broom. Then it puts forth gouty fingers, generally five, standing stiffly up and still capped by the thick yucca-like tufts. Lastly the digitations grow to enormous arms, sometimes eighteen feet in girth, of light and porous, soft and spongy wood. The tree then resembles the baobab or calabash, the elephant or ...
— To the Gold Coast for Gold - A Personal Narrative in Two Volumes.—Vol. I • Richard F. Burton

... the solution will soon be deprived of colour. The more perfect the ivory or bone black, the more powerful is its action likely to be: either over or under calcined, animal charcoal is less energetic; in the former case, because it is less porous; in the latter, because the animal matter, not being wholly consumed, makes a kind of varnish in the charcoal which interferes with its acting. To a greater or less extent, gums, oils, and varnishes serve similarly as preventives, thereby decreasing the danger of employing these ...
— Field's Chromatography - or Treatise on Colours and Pigments as Used by Artists • George Field

... the clothes very loose fitting, so as to leave ample air space, and by having the outer clothes of a good non-conductor of heat. The cloth, of course, should be as light in weight as possible, but it is more important to have it a good non-conductor of heat and of porous weave. ...
— The Eugenic Marriage, Vol. 3 (of 4) - A Personal Guide to the New Science of Better Living and Better Babies • W. Grant Hague

... to establish his contact. He let the talk drift to impersonal topics as they picked their way out from the town along the mossy trail. The ground was spongy with water. On either side of them ferns and brakes grew lush. Sheba took the porous path with a step elastic. To the young man following she seemed a miracle ...
— The Yukon Trail - A Tale of the North • William MacLeod Raine

... this work, and all the gardeners round about came to him to provide themselves with these light, porous pots, of a beautiful red hue, round and slender, wherein the raspberries could be heaped without crushing them, and where they slept under the shelter ...
— International Short Stories: French • Various

... been suggested that the bones of the elephant, may be so porous and spongy as to disappear in consequence of an early decomposition; but this remark would not apply to the grinders or to the tusks; besides which, the inference is at variance with the fact, that not only the horns and teeth, but entire skeletons of deer, are frequently found in the districts ...
— Sketches of the Natural History of Ceylon • J. Emerson Tennent

... this ink does proceed from the fuliginosity or sooty part of the coal of the cork which is exceeding porous and light, and that this fuliginosity is nothing but an ...
— Forty Centuries of Ink • David N. Carvalho

... ways of obtaining it:—First, in warm climates, where the sun is strong, the sea-water is collected into shallow pools, and there left until it is evaporated by the sun's rays. The ground where these pools are made must neither be muddy nor porous, else the salt would get mixed with the mud and sand. Of course the people who manufacture it in this way take care to choose firm, hard ground for the bottoms of their pools. There are sluices attached to these pools by which any water that may ...
— The Desert Home - The Adventures of a Lost Family in the Wilderness • Mayne Reid

... seeing that the whole plant is made of closed bags or cells? It does it in a very curious way, which you can prove for yourselves. Whenever two fluids, one thicker than the other, such as treacle and water for example, are only separated by a skin or any porous substance, they will always mix, the thinner one oozing through the skin into the thicker one. If you tie a piece of bladder over a glass tube, fill the tube half-full of treacle, and then let the covered end rest in a bottle of water, in a few hours ...
— The Fairy-Land of Science • Arabella B. Buckley

... consul say to the British consul; "I'll tell you what that is, old man. That's a porous plaster. It has some holes, but it's meant ...
— The Belted Seas • Arthur Colton

... shoulder. The water is very good, for it is the rain which falls on the shelving surface of the campo, and soaks through a bed of sea-sand around the cisterns into the cool depths below. The bigolante comes every morning and empties her brazen buckets into the great picturesque jars of porous earthenware which ornament Venetian kitchens; and the daily supply of water costs a moderate family about ...
— Venetian Life • W. D. Howells

... any cleansing process at all, except an occasional superficial brushing, for periods of a year or so; they were made of dark obscurely mixed patterns to conceal the stage of defilement they had reached, and they were of a felted and porous texture admirably calculated to accumulate drifting matter. Many women wore skirts of similar substances, and of so long and inconvenient a form that they inevitably trailed among all the abomination of our horse-frequented roads. It was our boast in England that ...
— In the Days of the Comet • H. G. Wells

... dreadful place, also a legacy from the prehistoric people who lived in Kor. The only objects in the cave itself were slabs of rock arranged in various positions to facilitate the operations of the torturers. Many of these slabs, which were of a porous stone, were stained quite dark with the blood of ancient victims that had soaked into them. Also in the centre of the room was a place for a furnace, with a cavity wherein to heat the historic pot. But the most dreadful thing about the cave was that over each slab ...
— She • H. Rider Haggard

... the external surface is preserved, and here it can be seen that many of the specimens have their capitulums directed from the external surface directly inwards. These individuals, which were of full size, must have preyed on infusoria inhabiting the cavities of the porous, calcareous rock. On the other hand, I have seen some young specimens of L. dorsalis with their valves not at all rubbed, and others of full size with uninjured Balani and corallines on the tips of the valves, ...
— A Monograph on the Sub-class Cirripedia (Volume 1 of 2) - The Lepadidae; or, Pedunculated Cirripedes • Charles Darwin

... would at present render it unfit for a military station. There are several causes, all of which must be removed, before the necessary sanitary change can be accomplished. The vast heaps of stones, all of which are of an extremely porous nature, have absorbed the accumulated filth of ages, and the large area now occupied by these ruins must be a fertile source of noxious exhalations. During the rainy season the surface water, carrying with it every impurity, furnishes a fresh supply of poison to be stored beneath these health-destroying ...
— Cyprus, as I Saw it in 1879 • Sir Samuel W. Baker

... contraction, but weakening of the muscles of support. The back curves from the action of gravity, the strength of the support of the muscles at the back not counteracting the pull of the weight of the abdominal viscera in front. The bones become more porous and ...
— Disease and Its Causes • William Thomas Councilman

... water-jars; and it is probably in consequence of their inexperience in the ceramic art that their crucibles are not durable. After being put in the fire two or three times they swell and become very porous, and when used for a longer time they often crack and fall to pieces. Some smiths, instead of making crucibles, melt their metal in suitable fragments of Pueblo pottery, which may be picked up around ruins in many localities throughout the ...
— Navajo Silversmiths • Washington Matthews

... seen in the small intestines. They are of various sizes, weighing from 1 ounce to 25 pounds; they may be single or multiple, and differ in composition and appearance, some being soft (composed mostly of animal or vegetable matter), while others are porous, or honeycombed (consisting of animal and mineral matter), and others are entirely hard and stonelike. The hair balls, so common to the stomach and intestines of cattle, are very rare in horses. Intestinal calculi form around some foreign body, as a rule—a nail or piece of wood—whose shape ...
— Special Report on Diseases of the Horse • United States Department of Agriculture

... They brought their washing and worked among them—they came down and drew their drinking-water from the river, either beside the camels or down-stream of them, with complete indifference. It is true this water percolates drop by drop through large, porous clay pots before it is drunk, but even so, it would have seemed that they would have preferred its coming from up-stream of the derelict "ships of the desert." On the third day, to their mild surprise, we managed with infinite difficulty ...
— War in the Garden of Eden • Kermit Roosevelt

... immorality. Who would have imagined Mr. Radnor a private sinner flaunting for one of the righteous? And she, the mother, a lady—quite a lady; having really a sense of duty, sense of honour! That she must be a lady, Dudley was convinced. He beheld through a porous crape, woven of formal respectfulness, with threads of personal disgust, the scene, striking him drearly like a distant great mansion's conflagration across moorland at midnight, of a lady's breach of bonds and plunge of all for love. How had it been concealed? In Dudley's upper sphere, ...
— The Shaving of Shagpat • George Meredith

... painter's gun. She would groan and squeal, Chet knew, when the fans lifted her from the hold-down clutch; and she couldn't fly at over twenty thousand without leaking her internal pressure through a thousand cracks that made her porous as an old balloon—but to Chet's eyes the old relic of the years was a thing ...
— The Finding of Haldgren • Charles Willard Diffin

... where to hide. Eleanor stood shivering and Anne rushed over to ask Polly what had happened. Polly explained in a whisper, and Eleanor, as in a trance, watched her sister running about with something that seemed to cleave to her foot closer than a porous- plaster. Finally, Eleanor came to her senses and ran over to keep Barbara from rolling ...
— Polly of Pebbly Pit • Lillian Elizabeth Roy

... beds does not end with the warmth conserved. The earth and straw brick, through the processes of fermentation and through shrinkage, become open and porous after three or four years of service, so that the draft is defective, giving annoyance from smoke, which requires their renewal. But the heat, the fermentation and the absorption of products of combustion have together transformed the comparatively ...
— Farmers of Forty Centuries - or, Permanent Agriculture in China, Korea and Japan • F. H. King

... good for cacao. An open sandy or loamy alluvial soil is considered ideal. The physical condition of the soil is equally important: heavy clays or water-logged soils are bad. The depth of soil required depends on its nature. A stiff soil discourages the growth of the "tap" root, which in good porous soils is generally seven or ...
— Cocoa and Chocolate - Their History from Plantation to Consumer • Arthur W. Knapp

... essentially a roasting dish sufficiently thick to resist, for a time, the corrosive action of the fused metallic oxides it is to contain. The essential property of a cupel is, that it is sufficiently porous to allow the fused oxide to drain into it as fast as it is formed. It should be large enough to absorb the whole of the liquid; and of course must be made of a material upon which the liquid has no corrosive action. Cupels do not bear transport well; hence ...
— A Textbook of Assaying: For the Use of Those Connected with Mines. • Cornelius Beringer and John Jacob Beringer

... set in sandy loam soil with a porous yellow subsoil in a field of medium elevation which has excellent air drainage so I have had little damage from cold injury. The soil is of fair fertility for the Upper Costal Plain area. Of the trees sent me, fourteen of the ML selection, originating, I am informed by Mr. ...
— Northern Nut Growers Association Incorporated 39th Annual Report - at Norris, Tenn. September 13-15 1948 • Various

... the shape, as it is very easily stretched and pulled out of shape while sewing on the edge wire. The same method is used in covering a neteen frame as with the buckram frame. The velvet, if velvet is used, can be glued on, but the material is so porous that it is not very satisfactory. Neteen and crinoline make excellent foundations for braid hats, as these materials are light in weight, soft, and pliable. They are also very satisfactory for ...
— Make Your Own Hats • Gene Allen Martin

... at the same time that the roof of the nave was vaulted—viz. in 1242, in the time of Henry Foliot. This work was done by the monks themselves, who thought, as Professor Willis suggests, that they could do it better than common workmen. Their work is made of a light and porous kind of stone, treated with plaster on the under-side, and it was rendered necessary by the previous roof, which was of wood, having been destroyed by fire in 1190. Of this fire the piers certainly show the ...
— Bell's Cathedrals: The Cathedral Church of Gloucester [2nd ed.] • H. J. L. J. Masse

... filters were of the simplest construction. They consisted of three very porous earthenware pots or "chatties" placed on a tripod. In the first was the water to be filtered, a foot off was the pot full of charcoal and white sand, and the filtered water was drawn off from the third. The charcoal and sand ...
— Prisoners Their Own Warders - A Record of the Convict Prison at Singapore in the Straits - Settlements Established 1825 • J. F. A. McNair

... with some difficulty by exposing it to the reaction of sulphate of copper, is permeable to water, but will not permit the passage of the majority of salts. Pfeffer, by producing these walls in the interstices of a porous porcelain, has succeeded in giving them sufficient rigidity to allow measurements to be made. It must be allowed that, unfortunately, no physicist or chemist has been as lucky as these two botanists; and the attempts to reproduce ...
— The New Physics and Its Evolution • Lucien Poincare

... its numerous tiny tributaries are beautiful in their garb of green, while the areas that are not thus refreshed are as gray as the arid portions of the plains themselves. And that is the case everywhere among the Rockies—where no water flows over the surface the porous, sandy soil is dry and parched. The altitude of Georgetown is eight thousand four hundred and seventy-six feet. We were therefore three thousand feet higher than we had been in the morning, and had a right to expect a somewhat different avi-fauna, an expectation in which ...
— Birds of the Rockies • Leander Sylvester Keyser

... two highly suggestive points. They show us, first, that two substances can exist within the space formerly thought to be completely filled by one. Second, they show that ALL substances are porous to ...
— The Blind Spot • Austin Hall and Homer Eon Flint

... and loose stones. This region is of course without verdure, and entirely uninhabited. The rocks are all of igneous origin, but of very different ages, traps, basalts, amygdaloids, tufas, ochres, and porous lavas. The number of active volcanoes is, at present, not great, but hot springs and mud volcanoes testify to the existence of volcanic action along a line running from the extreme south west at Cape Reykjanes ...
— The Principal Navigations, Voyages, Traffiques and Discoveries - of the English Nation, v. 1, Northern Europe • Richard Hakluyt

... of millions of tiny feeding rootlets from the trees of the forest. The closely interwoven fibre of these rootlets, everywhere forms a strong web for the carpet, which firmly holds in place the soft, porous, underlying soil, safely protecting it from the destructive erosion which, especially on the steeper slopes, swiftly follows the dashing violence of heavy rain storms. Gradually this leafy carpet grows in strength and thickness; like some ...
— Solaris Farm - A Story of the Twentieth Century • Milan C. Edson

... "Perpetual porous plasters! They would if they only knew what a reputation we have achieved!" exclaimed Nat, as the train rolled in. "Hello, there's some of ...
— Jack Ranger's Western Trip - From Boarding School to Ranch and Range • Clarence Young

... says that at first an attempt was made to construct balloons of fine, light paper; but this material being permeable, and the gas being inflammable, balloons thus made did not succeed. It was necessary to seek a material less porous, and, if possible, ...
— Wonderful Balloon Ascents - or, the Conquest of the Skies • Fulgence Marion

... minute particles of the solid separate from each other and disappear from view. (Shown in dropping salt in water.) At the same time they mix with the solvent, forming a solution, from which they separate only with great difficulty. For this reason solids in solution can diffuse through porous partitions along with the solvents in which they are ...
— Physiology and Hygiene for Secondary Schools • Francis M. Walters, A.M.

... introduced, which is made accurately to fill the place, by hammering the copper on the inside. Air pump rods of Muntz's metal or copper are much used. Iron rods covered with brass are generally wasted away where the bottom cone fits into the bucket eye, and if the casing be at all porous, the water will insinuate itself between the casing and the rod and eat away the iron. If iron rods covered with brass be used, the brass casing should come some distance into the bucket eye; the cutter should be of brass, and a brass washer should cover ...
— A Catechism of the Steam Engine • John Bourne

... 300; pour the boil on oiled plate, flavor with peppermint and work well up; in a smaller pan have two pounds of white sugar, with the usual proportion of cream of tartar and water boiled to the same degree; pull this over the hook until white and porous; remove it to the plate and work it down into lengths about one inch thick; lay them longways on the solid boil, equal distances apart; make the whole boil into a thick roll, bringing one end down to a point; ...
— The Candy Maker's Guide - A Collection of Choice Recipes for Sugar Boiling • Fletcher Manufacturing Company

... shadows. He made out running streams in the distance. Beside them were trees of a peculiar kind; they were rooted in the ground, but the branches also were aerial roots, and there were no leaves. No other plants could be seen. The soil was soft, porous rock, resembling pumice. Beyond a mile or two in any direction the light merged into obscurity. At their back a great rocky wall extended on either hand; but it was not square like a wall, but full of bays and promontories like an indented line of sea cliffs. The roof of ...
— A Voyage to Arcturus • David Lindsay

... power is called Sky-rallic, and is communicated throughout the whole Tube Line by Brosis, a porous metal running in thin ...
— Life in a Thousand Worlds • William Shuler Harris

... in his nose. It had always been a generous, weighty, self-confident nose, inviting to itself more observation than any of its brother features demanded. But in latter years it had spread itself out in soft, porous, red excrescences, to such an extent as to make it really deserving of considerable attention. No stranger ever passed Captain Cuttwater in the streets of Devonport without asking who he was, or, at ...
— The Three Clerks • Anthony Trollope

... of clothing includes ventilation and freedom from pressure, moderate warmth, and cleanliness. Loose, porous underclothes are already coming into vogue. But effective ventilation, namely such as will allow free access of air to the skin, requires that our outer clothes—including women's gowns and men's ...
— How to Live - Rules for Healthful Living Based on Modern Science • Irving Fisher and Eugene Fisk

... feather beds, in which the body sinks deeply, are very injurious, on account of the unnatural heat and perspiration they are sure to induce. It is of little consequence what the material of your bed is, if it be light, dry and porous, and not too soft. Straw, grass, husks, hair, and a great variety of other things, have been employed. Almost any thing—I repeat it—is better than feathers. The same remarks ...
— The Young Woman's Guide • William A. Alcott

... timbered, were next crossed; then we reached one of those level plains, with black soil and blocks of porous trachyte lying on the surface, which are swamps in the rainy season, and have for vegetation sedgy grasses and scattered jicara trees, cactuses and thorny acacias. Up to the time we passed, there had been no rain in these parts, and the plain was dry and bare, ...
— The Naturalist in Nicaragua • Thomas Belt

... narrow and rocky defiles, I could almost have fancied myself transported back again to the barren valleys of the island of St. Jago. Among the basaltic cliffs I found some plants which I had seen nowhere else, but others I recognised as being wanderers from Tierra del Fuego. These porous rocks serve as a reservoir for the scanty rain-water; and consequently on the line where the igneous and sedimentary formations unite, some small springs (most rare occurrences in Patagonia) burst forth; and they could be distinguished at a distance by ...
— The Voyage of the Beagle • Charles Darwin

... stomach becomes the receptacle of meat and drink, the lungs and the heart draw in the air for the stomach. The stomach, which is wonderfully arranged, consists chiefly of nerves. * * * The lungs are light and porous, and like a sponge—just fit for drawing in the breath. They blow themselves out and draw themselves in, so that thus may be easily received that sustenance most ...
— The Life of Cicero - Volume II. • Anthony Trollope

... the things seen, to the sense, by means of the optic nerves, so that the soul—for the reason given above— may perceive it in the surface of the eye. In the same way as to the sense of hearing, it would have sufficed if the voice had merely sounded in the porous cavity of the indurated portion of the temporal bone which lies within the ear, without making any farther transit from this bone to the common sense, where the voice confers with and discourses to the common judgment. The sense of smell, again, is compelled ...
— The Notebooks of Leonardo Da Vinci, Complete • Leonardo Da Vinci

... picture of desolation. It was surveyed by two detachments, and was found to be covered with black and porous stones. The entire vegetation which could thrive on this mass of lava consisted of two or three kinds of rugose grass, which grew on the rocks, scanty bushes, especially the paper-mulberry, the 'hibiscus,' and the mimosa, and some plantains. Close to the landing-place ...
— Celebrated Travels and Travellers - Part 2. The Great Navigators of the Eighteenth Century • Jules Verne

... the walls grew tediously up, to a melody of tinkling trowels. These bricks are joined by mortar, which is mixed in small quantities, and must vary very greatly in its quality and properties throughout the house. In order to prevent the obvious evils of a wall of porous and irregular baked clay and lime mud, a damp course of tarred felt, which cannot possibly last more than a few years, was inserted about a foot from the ground. Then the wall, being quite insufficient to stand the heavy drift of weather to which it ...
— Anticipations - Of the Reaction of Mechanical and Scientific Progress upon - Human life and Thought • Herbert George Wells

... sleek fires sprang on the instant into life. We lay imprisoned in a house of glass at the foot of a smooth incline rising behind us to unknown heights. A wall of porous and opaque ice-rubbish, into which our feet had plunged deep, had stayed ...
— At a Winter's Fire • Bernard Edward J. Capes

... molecules which assume new characters under the influence of heat. Heat thus according to Nyaya directly affects the characters of the molecules and changes their qualities without effecting a change in the atoms. Nyaya holds that the heat-corpuscles penetrate into the porous body of the object and thereby produce the change of colour. The object as a whole is not disintegrated into atoms and then reconstituted again, for such a procedure is never experienced by observation. This is called the doctrine of ...
— A History of Indian Philosophy, Vol. 1 • Surendranath Dasgupta

... porous, and therefore allows easily fusible substances (such as alkalies and fluxes) to pass into it, while other substances less fusible, such as metals, to ...
— A System of Instruction in the Practical Use of the Blowpipe • Anonymous

... microscope, we can see the hole or perforation up the centre, forming the axis of the tube (see Fig. 2). Mr. H. de Mosenthal, in an extremely interesting and valuable paper (see J.S.C.I.,[1] 1904, vol. xxiii. p. 292), has recently shown that the cuticle of the cotton fibre is extremely porous, having, in addition to pores, what appear to be minute stomata, the latter being frequently arranged in oblique rows, as if they led into oblique lateral channels. A cotton fibre varies from 2.5 to 6 centimetres in length, and in breadth from 0.017 to 0.05 millimetre. The characteristics ...
— The Chemistry of Hat Manufacturing - Lectures Delivered Before the Hat Manufacturers' Association • Watson Smith

... be prime and recently killed. Veal will not keep so long as an older meat, especially in hot or damp weather: when going, the fat becomes soft and moist, the meat flabby and spotted, and somewhat porous like sponge. Large, overgrown veal is inferior to small, delicate, yet fat veal. The fillet of a cow-calf is known by the udder attached to it, and by the softness of the skin; it is preferable to the ...
— Enquire Within Upon Everything - The Great Victorian Domestic Standby • Anonymous

... rain and snow. The transport, pitched in the filthy morass known as 'Scottish Lines,' saw its labour of three weeks thrown away in a couple of nights. For the human beings there were a few tents and huts, but in face of the searching wind canvas seemed quite porous, and the huts were badly built and had a hundred openings to the bitter air. But up at the Bluff conditions were terrible. The trenches had disappeared under repeated bombardments, and had become ...
— On the King's Service - Inward Glimpses of Men at Arms • Innes Logan

... growth of the common branching madrepore is not over one and a half inches a year. As the branches are open, this would not be equivalent to more than half an inch in height of solid coral for the whole surface covered by the madrepore; and, as they are also porous, to not over three-eighths of an inch of solid limestone. But a coral plantation has large bare patches without corals, and the coral sands are widely distributed by currents, part of them to depths ...
— Critiques and Addresses • Thomas Henry Huxley

... Coke is a porous product consisting almost entirely of carbon remaining after certain manufacturing processes have distilled off the hydrocarbon gases of the fuel used. It is produced, first, from gas coal distilled in gas retorts; second, from gas ...
— Steam, Its Generation and Use • Babcock & Wilcox Co.

... water, and weak soot water should be given three times a week. It is propagated by off-sets planted in sand, also by slicing off a portion from the top of the plant and placing it in light, rich, porous loam. ...
— Gardening for the Million • Alfred Pink

... last mentioned. The columns of this were also fluted, but no part of the edifice is standing, except a solitary pilaster, which was probably a portion of the cella. These temples were built of a hard but porous stone, of a light color, and were probably covered with a thin coat of cement. They command an extensive view both of sea and land, and in their primal days must, with their tower-like columns, their sculptured ...
— Knickerbocker, or New-York Monthly Magazine, March 1844 - Volume 23, Number 3 • Various

... means taken to prove, for the satisfaction only of a foolish and unbelieving world, the supernatural nature of the phenomenon. The umbrella is examined under severe test conditions: it is weighed in a vacuum, and placed under the spectroscope. It is found to be porous and a conductor of heat; but it is not soluble in water, though it boils at 500 deg. Fahr. To demonstrate the absence of trickery or collusion everyone turns up his sleeves and empties his waistcoat pockets. There is no room for sleight of ...
— Twenty-One Days in India; and, the Teapot Series • George Robert Aberigh-Mackay

... white dust; the reddish, molded stone, the hewn, yellowish, porous tuff; the dark, polished porphyry, gleaming with moisture, and the living, tiny, silvery jet of water: material and colors harmonize ...
— Mogens and Other Stories - Mogens; The Plague At Bergamo; There Should Have Been Roses; Mrs. Fonss • Jens Peter Jacobsen

... communications corrupt two in the bush,' and a bird in the hand beats two pair.' Such things don't help a boy to be good. What a boy wants is club skates, and seven shot revolvers, and such things. Well, I must go and help Pa roll over in bed, and put on a new porous ...
— Peck's Compendium of Fun • George W. Peck

... clutched at their flanks and at the legs of the riders. Into water-gutted arroyos they descended, slid down breakneck shale ridges, climbed like heather cats the banks of dry washes, pounded over white porous malpais on which no ...
— Oh, You Tex! • William Macleod Raine

... now. When she had seen it last it was a rocky valley, deep in the cliffs, and floored with boulders. Now it was a long pool, for the tide was in, and the sea, working through the porous, frost-riven rocks, had half-filled it with water. Katherine, approaching the gulch from the landward side, was coming to the place from an opposite direction to that by which Jervis Ferrars had reached it, and her path downwards was much ...
— A Countess from Canada - A Story of Life in the Backwoods • Bessie Marchant

... so big that there are endless "episodes" of garden beauty I think all Italy must have been ransacked in old times for garden stone-work of exceptional beauty; and these treasures have been put together by some master-hand. Even the formal borders of the walks are of old porous stone, which takes the weather-staining so beautifully, and are carved in endless variety. Now that the gardens have been so long neglected or left in abeyance, the green staining has become perfect. ...
— The Lady of the Shroud • Bram Stoker

... steep declivity, shadowed by cedar trees, and reached the edge of a tiny, almost landlocked, lagoon. It was no more than a few hundred feet in diameter. The jagged, porous gray-black rocks rose like an upstanding crater rim to mark its ten-foot entrance to the sea. A little white house stood here with its back against the fifty-foot cliff. It was dark, its colored occupants probably already asleep. Two rowboats floated ...
— The White Invaders • Raymond King Cummings

... that specimen consist of a frontal and some other parts of the skull, including the upper jaw with teeth, both of an adult and young individual; also a radius, some lumbar vertebrae, and some metatarsal bones. They are all embedded in a light porous tuff, resembling in colour and mineral composition the ejectamenta of several of the latest eruptions of Denise. But none of the bones penetrate into another part of the same specimen, which consists of a more compact rock thickly laminated. Nevertheless, ...
— The Antiquity of Man • Charles Lyell

... wild vines and lupines were growing in patches where the lava had decayed into soil. Then came bare slopes with dark hollow and sharp ridges. We walked on old stiff lava-streams. Sometimes we had to plod through piles of coarse, porous cinders. Sometimes we climbed over tangled, lumpy beds of twisted, shiny rock. Sometimes we looked into dark arched tunnels. Red streams had once flowed out of them. A few times we passed near fresh cracks in the mountain. Here steam ...
— Buried Cities: Pompeii, Olympia, Mycenae • Jennie Hall

... after we leave the trenches may we cheer?" officers have been asked in the dead of winter, when water stood deep over the porous mud and morning found a scale of ice around ...
— My Year of the War • Frederick Palmer

... sugar, adding the lemon, and beating the whole for a long time. Then by degrees, stir in the flour slowly and lightly; for if the flour is stirred hard and fast into sponge cake, it will make it porous and tough. Have ready buttered, a sufficient number of little square tins, (the thinner they are the better,) half fill them with the mixture; grate loaf-sugar over the top of each; put them immediately into a quick oven, and bake them about ten minutes; taking ...
— Directions for Cookery, in its Various Branches • Eliza Leslie

... the market. Furnacemen object to more than a very small proportion of fine ore in their mixtures, particularly when the ore is magnetic, not easily reduced. The problem to be solved was to market an agglomerated material so as to avoid the drawbacks of fine ore. The agglomerated product must be porous so as to afford access of the furnace-reducing gases to the ore. It must be hard enough to bear transportation, and to carry the furnace burden without crumbling to pieces. It must be waterproof, to a certain ...
— Edison, His Life and Inventions • Frank Lewis Dyer and Thomas Commerford Martin

... process is sometimes called metasomatic replacement. Igneous rocks as a rule are compact, and hence are not so much subject to the processes of cementation as sedimentary rocks; but certain of the more porous phases of the surface lavas, as well as any joints in igneous rocks, may become cemented. All of these changes may be grouped under the general ...
— The Economic Aspect of Geology • C. K. Leith

... fingers of his left hand; and the steward, nodding and grinning his comprehension of the mute order, withdrew, to reappear next moment with a case-bottle of rum, three glasses, and a water-monkey, or porous earthen jar, full of what proved, on our pouring it out, to be a ...
— The Congo Rovers - A Story of the Slave Squadron • Harry Collingwood

... in the streets near the water-side, are, for the most part, lofty, and built close together. The bricks are of a peculiar nature, being porous, and capable of resisting weather better than the firm, close, and red bricks of the northern states. They are of a dark brown colour, which gives to the buildings a gloomy appearance. The roofs are tiled or slated. ...
— Travels in North America, From Modern Writers • William Bingley

... The porous clay cracked like an egg-shell, the top coming off in one piece, with a few flying splinters; and I pressed the bouquet deep ...
— The Car of Destiny • C. N. Williamson and A. M. Williamson

... way, too. You are all familiar with the sight of a pot covered with crepe paper stained and discoloured from water spilt upon it and moisture given off from the porous pot. ...
— The Library of Work and Play: Gardening and Farming. • Ellen Eddy Shaw

... well obliterated by bright young growth. Many of the pools had dried up, but four of the largest kept fairly well filled with brackish water, evidently supplied by some underground communication with the sea, possibly merely by slow filtration through the porous coral rock, sufficient, however, to keep them fit habitations ...
— Fire Island - Being the Adventures of Uncertain Naturalists in an Unknown Track • G. Manville Fenn

... live once more among Protestants; they are more honest than Catholics; a Romish school is a building with porous walls, a hollow floor, a false ceiling; every room in this house, monsieur, has eyeholes and ear-holes, and what the house is, the inhabitants are, very treacherous; they all think it lawful to tell lies; they all call ...
— The Professor • (AKA Charlotte Bronte) Currer Bell

... related, it was clear that he must have been conscious of life for more than an hour, while inhumed, before lapsing into insensibility. The grave was carelessly and loosely filled with an exceedingly porous soil; and thus some air was necessarily admitted. He heard the footsteps of the crowd overhead, and endeavored to make himself heard in turn. It was the tumult within the grounds of the cemetery, he said, which appeared to awaken him from a deep sleep, but no sooner was he awake than he became ...
— The Works of Edgar Allan Poe - Volume 2 (of 5) of the Raven Edition • Edgar Allan Poe

... bare. We could now perceive the snow beginning to leave the stones from day to day, as early as the last week in April. Towards the end of May a great deal of snow was dissolved daily; but, owing to the porous nature of the ground, which absorbed it as fast as it was formed, it was not easy to procure water for drinking on shore, even as late as the 10th of June. In the ravines, however, it could be heard trickling under stones before that time; and about the 18th, many considerable streams were formed, ...
— Three Voyages for the Discovery of a Northwest Passage from the • Sir William Edward Parry

... the modern German young man came home to him during the next two weeks. Our English youth fritters away its time in idleness and pleasure-seeking. The German concentrates. Adolf concentrated like a porous plaster. Every day after breakfast, just when the success of James's literary career depended on absolute seclusion, he would come trotting up for his lesson. ...
— The Man Upstairs and Other Stories • P. G. Wodehouse

... labour that these long, apparently endless, yet elaborately designed galleries, were increasing so rapidly, with their layers of beds or berths, one above another, cut, on either side the path-way, in the porous tufa, through which all the moisture filters downwards, leaving the parts above dry and wholesome. All alike were carefully closed, and with all the delicate costliness at command; some with simple tiles of baked clay, many with slabs of marble, enriched by fair inscriptions: marble ...
— Marius the Epicurean, Volume Two • Walter Horatio Pater

... amid cries iv 'Veev Higgins,' 'Abase Castile,' et cethra, fr'm th' populace. An' manny a heart beats proud in Goshen that night. That's th' way ye think iv it, but it happens diff'rent, Hinnissy. Th' soap king, th' prune king, an' th' porous plaster king fr'm here won't stir up anny tumult in Paris this year. Th' chances ar-re th' prisidint won't know they're there, an' no wan'll speak to thim but a cab dhriver, an' he'll say: 'Th' fare fr'm ...
— Mr. Dooley's Philosophy • Finley Peter Dunne

... used only by the families of the wealthy, and it is impossible to keep milk or fresh meat for any length of time. In place of ice-water the people store water in porous jars, and in this way it is ...
— A Little Journey to Puerto Rico - For Intermediate and Upper Grades • Marian M. George

... i.e. thin and slightly porous earthenware jars used for Fukka'a, a fermented drink, made of barley ...
— The Book of the Thousand Nights and a Night, Volume 6 • Richard F. Burton

... the world, its height being only 850 feet above sea level. There are doubtful traditions that Lake Bombom, a hundred square miles in extent, was formed by a terrible eruption in 1700, by which a lofty mountain 8000 or 9000 feet high, was destroyed. The vast deposits of porous tufa in the surrounding country are certainly evidences of former great eruptions ...
— The San Francisco Calamity • Various

... landlord makes no difficulty in returning a portion of the rent; he anticipates such an application. Such immense possessions can support losses which would press most heavily upon comparatively small properties. At one side of the estate the soil perchance is light and porous, and is all the better for rain; on the other, half across the county, or quite, the soil is deep and heavy and naturally well watered and flourishes in dry summers. So that there is generally some one prospering if another suffers, and thus ...
— Hodge and His Masters • Richard Jefferies

... conquest of Mexico, the Marquis De Monterey removed the port back to Ulua, and founded the present city of Vera Cruz. It was at first built of wood, but having been several times burned down, it was at length built of its present material—a porous stone full of animal remains, obtained from the bottom of the harbor. This stone, when laid in and covered over with cement, forms a very durable building-material. The castle, which stands upon the island of Ulua, is now ...
— Mexico and its Religion • Robert A. Wilson

... rock forming the point at Luders bay consist of a porous trap, or basalt—a volcanic product of a modern period. The rocks belong to agglomerated masses, which form the immediate ground of the cascades, and have been already mentioned as constituting a bed of cemented conglomerate rocks, ...
— The Exploring Expedition to the Rocky Mountains, Oregon and California • Brevet Col. J.C. Fremont

... composed of a soft, fleshy substance, full of small air-cells and tubes. They are porous and spongy when healthy, but in some diseases become an almost solid mass, through which ...
— Object Lessons on the Human Body - A Transcript of Lessons Given in the Primary Department of School No. 49, New York City • Sarah F. Buckelew and Margaret W. Lewis

... fossils have been formed under water, and a large proportional number of these—whether the animals were marine, terrestrial, or inhabitants of fresh water—have been formed in sedimentary deposits either of sand, gravel, or other porous material. Now, where such deposits have been afterwards raised into the air for any considerable time—and this has been more or less the case with all deposits which are available for exploration—their fossiliferous contents will have been, as a general rule, dissolved by the ...
— Darwin, and After Darwin (Vol. 1 and 3, of 3) • George John Romanes

... Form which every kind of Matter undergoes. Conversion of Gases into Liquids and Solids. Carbonic Acid—its curious properties in a solid state. Condensation of Gases by porous bodies. By Spongy Platinum. Importance of ...
— Familiar Letters of Chemistry • Justus Liebig

... kid found out we were going to leave him at home he started up a howl like a calliope and fastened himself as tight as a leech to Bill's leg. His father peeled him away gradually, like a porous plaster. ...
— Whirligigs • O. Henry

... it. The surface water and generally the sewage—for we are very far yet from having discovered a drain-pipe which is impeccable in respect of leakage—soak through the porous cap down to the clay and lie there—to rise again not at the Last Day by any means, but on the evening of the very first one that's been hot enough ...
— The History of Sir Richard Calmady - A Romance • Lucas Malet

... All porous earth-beds are reservoirs of water, and give out their supplies more or less copiously according to their states of engorgement; and at higher or lower levels, as they are more or less replenished by rain. Rain percolates through the chalk rapidly at all times, it being greatly fissured ...
— Notes and Queries, Number 191, June 25, 1853 • Various

... comical English. The boat itself was a queer, stubby craft propelled by home-made oars. Before the morning was well advanced the ship was surrounded by boats carrying shells, limes, prickly pears, green cocoanuts, bananas, fish, and "water monkeys." The latter were jugs made of a porous clay, and they were eagerly purchased. The "water monkey" is a natural cooler, and when placed in a draught of air will keep water at a temperature delightful in ...
— A Gunner Aboard the "Yankee" • Russell Doubleday

... such sections will be of great use to the teacher.[1] They show well the reason of the formation of a dividing line between the wood of successive seasons. In a cross section of Oak or Chestnut the wood is first very open and porous and then close. This is owing to the presence of ducts in the wood formed in the spring. In other woods there are no ducts, or they are evenly distributed, but the transition from the close autumn wood, consisting of smaller and more closely packed cells, to the wood of ...
— Outlines of Lessons in Botany, Part I; From Seed to Leaf • Jane H. Newell

... only the depth at which the bottom water is reached, but the height to which the water rises in the holes, and the distance at which a drain will lay the hole dry. In sinking these holes, clay-banks are found with hollows or furrows between them, which are filled with a more porous soil, as represented in the ...
— Farm drainage • Henry Flagg French

... well?—The theoretical explanation of the phenomenon is easily understood. The secondary and tertiary geological formations often present the appearance of immense basins, the boundary or rim of the basin having been formed by an upheaval of adjacent strata. In these formations it often happens that a porous stratum, consisting of sand, sandstone, chalk or other calcareous matter, is included between two impermeable layers of clay, so as to form a flat [Transcriber's Note: The original text reads 'porus'] porous U tube, continuous from ...
— Burroughs' Encyclopaedia of Astounding Facts and Useful Information, 1889 • Barkham Burroughs

... years geyser action remained a mystery balanced among conflicting theories, of which at last Bunsen's won general acceptance. Spring waters, or surface waters seeping through porous lavas, gather thousands of feet below the surface in some pocket located in strata which internal pressures still keep hot. Boiling as they gather, the waters rise till they fill the long vent-hole to the surface. Still the steam keeps making ...
— The Book of the National Parks • Robert Sterling Yard

... glen in the chalk hills just beneath the high cliffs of Beachy Head. Beyond the Downs again, to the north, the country descended abruptly to the deep trough of the Weald, whose cold and sticky clays or porous sandstones are never of any use for purposes of tillage. Hence, as its very name tells us, the Weald has always been a wild and wood-clad region. The Romans knew it as the Silva Anderida, or forest of Pevensey; the early English as the Andredesweald. Both names are derived from a Celtic ...
— Science in Arcady • Grant Allen

... pulpy-looking mass, at which the young Hardys looked very doubtfully,—and was placed in a large sugar hogshead, which had been procured for the purpose. In the bottom of this eight large holes were bored, and these were stopped up with pieces of plantain stalk. Through the porous substance of these stalks the molasses or treacle slowly drained off. As the wet sugar was placed in the cask, layers of slices of plantain stems were laid upon it, as the spongy substance draws the ...
— Out on the Pampas - The Young Settlers • G. A. Henty

... of the Nile, and thence received their name. These were long in shape, without a foot, and had a narrow mouth. They were meant never to be opened, but to let the scent escape slowly and sparingly through the porous stone. In these Egyptian jars scented ointment was carried by trade to the banks of the Tigris and to the shores of ...
— History Of Egypt From 330 B.C. To The Present Time, Volume 10 (of 12) • S. Rappoport

... the ship was in a most dilapidated condition; but in the forecastle it looked like the hollow of an old tree going to decay. In every direction the wood was damp and discoloured, and here and there soft and porous. Moreover, it was hacked and hewed without mercy, the cook frequently helping himself to splinters for kindling-wood from the bitts and beams. Overhead, every carline was sooty, and here and there deep holes were burned in them, a freak of some drunken ...
— Omoo: Adventures in the South Seas • Herman Melville

... be in the snow,—the light, vascular, porous, permeable snow,—under which a human being may move, and through which he may breathe,—though tons of it may be superpoised above his body,—the snow that, while imprisoning its victim, also gives him warmth, and affords ...
— The Boy Slaves • Mayne Reid

... season, or they may be of firm, not succulent green stems. After trimming off all but a few of the upper leaves, which should be clipped to reduce transpiration, the cuttings—never more than 4 or 5 inches long—should be plunged nearly full depth in well-shaded, rather light, porous, well-drained loam where they should remain undisturbed until they show evidences of growth. Then they may be transplanted. While in the cutting bed they must never be allowed to become dry. This is especially true of greenwood cuttings made during the summer. These should always have the coolest, ...
— Culinary Herbs: Their Cultivation Harvesting Curing and Uses • M. G. Kains

... you visited Florence? I am told that recently new and handsome shops have been opened which are lighted at night.' She said also 'We have a good chemist here. The Austrian chemists are not better. He placed on my leg, six months ago, a porous plaster which has not yet come off.' Such are the words that Maria Therese deigned to address to me. O simple grandeur! O Christian virtue! O daughter of Saint Louis! O marvellous echo of your voice, ...
— The Red Lily, Complete • Anatole France

... each other with choice morsels from their portion; a baked turkey stuffed with nuts, or on important occasions a whole sheep, forms the principal dish, which is cleverly divided by the host or principal guest without the aid of knife or fork. Water in porous jars, often flavoured with rose-leaves or verbena, is presented by servants as the meal proceeds. The final dish always consists of boiled rice and milk sweetened with honey, a delicious dish, which is eaten with the same spoon by which the soup was ...
— Peeps at Many Lands: Egypt • R. Talbot Kelly

... to use some kind of rubber or leather cement, preferably the latter. This can be made by dissolving gutta-percha in bisulphide of carbon, but a good leather cement may be had at almost any shoe store. If the bellows are porous, it may be well to give them a coat of cement, but never paint them; the paint cracks and the leaks are ...
— Piano Tuning - A Simple and Accurate Method for Amateurs • J. Cree Fischer

... appears quite round and the white clear, it is fresh. Or, if you put it in a bucket of water and it falls on its side, it is fresh. If it sort of topples in the water, standing on its end, it is fairly fresh, but, if it floats, beware of it. The shell of a fresh egg looks dull and porous. As it begins to age, the shell takes on a shiny appearance. If an egg is kept any length of time, a portion of its water evaporates, which leaves a space in the shell, and the egg will "rattle." An egg that rattles ...
— Many Ways for Cooking Eggs • Mrs. S.T. Rorer

... of the wood from which it was made. In its purest form it occurs in the diamond, which is believed to be produced by the decomposition of vegetable matters, and it is there crystallized and remarkably transparent; but when produced by artificial processes, carbon is always black, more or less porous, and soils the fingers. It is insoluble in water, burns readily, and is converted into carbonic acid. Carbon is the largest constituent of plants, and forms, in round numbers, about 50 per cent of their weight ...
— Elements of Agricultural Chemistry • Thomas Anderson

... not, properly speaking, weight which is the cause of this retardation, since the boats are going down and not upwards; but it is the same cause which also increases the weight in bodies that have greater density, which are, that is to say, less porous and more charged with matter that is proper to them: for the matter which passes through the pores, not receiving the same movement, must not be taken into account. It is therefore matter itself which originally is inclined to slowness or privation ...
— Theodicy - Essays on the Goodness of God, the Freedom of Man and the Origin of Evil • G. W. Leibniz

... failed; they were still functioning perfectly. But meteor detectors are built to look for solid chunks of metal and rock—not thin, porous bits ...
— Hanging by a Thread • Gordon Randall Garrett

... the greater economy of the allegory. So great is the multitude of things that we cannot keep them vividly in mind. Usually, then, we name them, and let the name stand for the whole impression. But a name is porous. Old meanings slip out and new ones slip in, and the attempt to retain the full meaning of the name is almost as fatiguing as trying to recall the original impressions. Yet names are a poor currency for thought. They ...
— Public Opinion • Walter Lippmann

... each man from eighteen to twenty inches space in which to lie down, and just room enough to stretch his legs well. With our sleeping bags they were entirely comfortable, no matter what the weather outside. The snow is porous enough to admit of air circulation, but even a gale of wind without would not affect the temperature within. It is claimed by the natives that when the wind blows, a snow house is warmer than in a period of still cold. I could see no difference. A new snow igloo is, however, more comfortable ...
— The Long Labrador Trail • Dillon Wallace

... and take your choice of either curving slope to descend into the Forum. Then you see that the little stuccoed edifice is but a modern excrescence on the mighty cliff of a primitive construction, whose great squares of porous tufa, as they underlie each other, seem to resolve themselves back into the colossal cohesion of unhewn rock. There are prodigious strangenesses in the union of this airy and comparatively fresh- faced superstructure and these deep-plunging, hoary foundations; and few things ...
— Italian Hours • Henry James

... the small round pits so characteristic of the Astraeans. The Porites resemble the Astraeans, but the pits are smaller, with fewer partitions and fewer tentacles, and their whole substance is more porous. ...
— Atlantic Monthly, Vol. 9, No. 55, May, 1862 • Various

... Pittsburgh, potteries and brick works, over forty glass furnaces and a long list of factories in which cheap power is a desideratum. The gas is the product of ages, which has been accumulated in the porous limestone of Ohio and Indiana. It has been produced so slowly that when once exhausted it will take many thousands of years for it to again accumulate in sufficient quantities to be used, even if the elements necessary ...
— The American Architect and Building News, Vol. 27, No. 733, January 11, 1890 • Various

... are not in columns, but are divided into strata ten or fifteen inches thick. These strata are inclined at an angle of 80 degrees to the north-west. The compact basalt alternates with the strata of porous basalt and marl. The rock does not contain hornblende, but great crystals of foliated olivine, which have a triple cleavage.* (* Blaettriger olivin.) This substance is decomposed with great difficulty. M. Hauy considers it a variety of the pyroxene. The porous basalt, which passes into mandelstein, ...
— Equinoctial Regions of America • Alexander von Humboldt

... causes an unnecessary amount to be removed. For in many cases of disease the bones in the neighbourhood of the joint are stimulated to an excessive amount of what is in reality Nature's effort at repair, and while the cartilaginous surfaces are denuded of cartilage, soft, and porous, the bones close by are roughened with a stalactitic-looking growth, projecting in knobs and angles. Now, if this be mistaken for disease and removed, too much will almost certainly be taken away, and the result will ...
— A Manual of the Operations of Surgery - For the Use of Senior Students, House Surgeons, and Junior Practitioners • Joseph Bell

... reduced to charcoal, parallel pieces of which were found at right angles to the length of the mound. No charcoal was found among or near the remains, the combustion there having been complete. The porous and softer portions of the bones were reduced to pulverized bone-black. Mr. Stevens also examined the furnace. The mound had probably not been opened after ...
— A Further Contribution to the Study of the Mortuary Customs of the North American Indians • H.C. Yarrow

... we can.' Fortunately, we had still water with us, for it was not known whether we should find any on the march, and we had been ordered to leave our kits behind, and to carry, in addition to the water-bottles, a skin holding about a gallon. In our hut we found eight porous jars, each of which would hold about a couple of gallons. Six of them were full. The empty ones we filled up from our skins, for these jars keep the water wonderfully cool. In none of the other huts had they found ...
— Through Russian Snows - A Story of Napoleon's Retreat from Moscow • G. A Henty

... insignificant spurs, and ascending the Rio Babacomeri; thence continuing westward by a gradual rise over delightful plains to the divide between that and the Sonoita or Clover creek, and along the latter, until it loses itself in the porous earth, a mile from the Santa Cruz river, and by the broad valley ...
— Memoir of the Proposed Territory of Arizona • Sylvester Mowry

... curiosities. I knew little about Geology at the time, but, collecting whatever struck my eye as uncommon, I picked up from the sides of the Scuir, among various other things, a bit of fossil wood, and, nearly at the summit of the eminence, a piece of pumice of a deep brownish-black color, and very porous, the pores being large and round, and the substance which divided them of a uniform thickness. This last specimen I gave to Mr. Lyell, who said that it could not originally have belonged to Eigg, though it might possibly ...
— The Cruise of the Betsey • Hugh Miller

... Public Affairs for 1831—not a chronology of shreds and patches, but a well-digested review of the great events of the year—and important indeed they are. The work is the quintessence of an "Annual Register:" it is not so porous and pursy as the last mentioned book, but is a pleasant volume to put in one's pocket and read inside a coach, if the passengers will allow you to do so; and it seems to be a good book for newspaper readers, to arrange their head-pieces, for they are usually crammed with all kinds of recollections, ...
— The Mirror of Literature, Amusement, and Instruction - Volume 17, Number 489, Saturday, May 14, 1831 • Various

... shell is porous so that the developing chick may obtain air. This exposes the moist contents of the egg to the drying influence of the atmosphere. Evaporation from eggs takes place constantly. It is increased by warm temperatures, dry air and currents of ...
— The Dollar Hen • Milo M. Hastings

... beds of sand and sandstone, varying in the regularity of their strata, reddish in color, often highly ferruginous, and more or less nodulous or porous. They present frequent traces of cross-stratification, alternating with regularly stratified horizontal beds, with here and there an intervening layer of clay. It would seem as if the character of the water basin had now changed, and as if the waters under which this second formation ...
— The Atlantic Monthly, Volume 18, No. 105, July 1866 • Various

... be given in arranging the young shoots, disbudding and thinning. A knowledge of the state of the border is necessary, whether retentive or porous, that no serious errors may be made by withholding a sufficient supply of water, or by giving too much. The temperature of the early house to be from 55 to 60 by night, ranging from 75 to 80 by sun heat, and allowing 65 by artificial heat, ...
— In-Door Gardening for Every Week in the Year • William Keane

... Tiberius Cavallo, an Italian chemist, succeeded in making, with hydrogen gas, soap-bubbles which rose in the air. Previous to this he had experimented with bladders and paper bags; but the bladders he found too heavy, and the paper too porous. ...
— The Mastery of the Air • William J. Claxton

... punca. Populace popolo—amaso. Popular populara. Population logxantaro. Populous popola. Porcelain porcelano. Porch vestiblo. Porcupine histriko. Pore trueto. Pork porkajxo. Porous trueta. Porphyry porfiro. Porpoise fokseno. Port (harbour) haveno. Portable portebla. Portend antauxsciigi. Porter (doorkeeper) pordisto. Porter portisto. Portfolio paperujo. Portion (allot) dividi. Portion porcio, parto, doto. Portmanteau valizo, vestkesto. Portrait ...
— English-Esperanto Dictionary • John Charles O'Connor and Charles Frederic Hayes

... Moreover, the little schooner which acts as weathercock on one of the gables, and is now heading due west, has a new topsail. It is a story-and-a-half cottage, with a large expanse of roof, which, covered with porous, unpainted shingles, seems to repel the sunshine that now strikes full upon it. The upper and lower blinds on the main building, as well as those on the extensions, are tightly closed. The sun appears to ...
— The Best of the World's Classics, Restricted to Prose, Vol. X (of X) - America - II, Index • Various

... of loss is the infiltration of small particles of alloy into the cupel. The cupel is necessarily porous, and particles of metal may perhaps drain into it, more especially if the bone ash is not in fine powder; but if this is the main source of loss it is hard to see why, in cupelling equal weights of silver and gold, the loss is not equal in each case. It is not easy to believe that the ...
— A Textbook of Assaying: For the Use of Those Connected with Mines. • Cornelius Beringer and John Jacob Beringer

... Filter.—The sterilisation of liquids by filtration is effected by passing them through a cylindrical vessel, closed at one end like a test-tube, and made either of porous "biscuit" porcelain, hard-burnt and unglazed (Chamberland system), or of Kieselguhr, a fine diatomaceous earth (Berkefeld system), and termed a "bougie" or "candle" ...
— The Elements of Bacteriological Technique • John William Henry Eyre

... the big beaver lay down to recover himself was not spacious nor particularly well ventilated, but in every other respect it was very admirably adapted to the needs of its occupants. Through the somewhat porous ceiling, a three-foot thickness of turf and sticks, came a little air, but no light. This, however, did not matter to the beavers, whose ears and noses were of more significance to them than their eyes. In floor area the chamber was something like five feet by six ...
— The House in the Water - A Book of Animal Stories • Charles G. D. Roberts

... handkerchiefs bound round their heads. Leading lives of toil and hardship, their huts are wretched abodes built of stones and mud, their beds the ground, an iron or copper kettle hung from the roof above the fire in the centre of the cabin, a few wicker baskets, and a waterbottle of porous clay constitute their furniture. Still, the lot of the miner of the Sierra Morena is far superior to that of the miner of Almaden, who, poisoned by the noxious vapours of mercury, quickly succumbs, ere he has gained ...
— The Mines and its Wonders • W.H.G. Kingston

... of the soil is another important condition regulating this loss. Some soils are very much opener and more porous than others; in such soils, of course, the loss by drainage will be greatest. We are apt at first sight, however, knowing the great solubility of nitrates, to overrate this source of loss. We have to remember that ...
— Manures and the principles of manuring • Charles Morton Aikman

... prevent the escape of heat. He may think I underrate his scientific attainments, but it will do no harm to remind him that an air-tight house may be a very cold one. A man would freeze to death in a glass bottle, when a coarse, porous blanket would keep him comfortable. Double windows are not to keep cold air out, but to keep the heat in. India-rubber weather-strips have, doubtless, caused ten times as many influenzas as they have prevented. More heat will radiate through a ...
— Homes And How To Make Them • Eugene Gardner

... traversing the whole of the plain, seemed to have been called into existence by magic, as there was no mountain to be seen in the neighbourhood from which it could have emerged. It appeared to be the covering of an immense crater, formed, not of separate stones and blocks, but of a single and slightly porous mass of rock ten or twelve feet thick, broken here and there by clefts ...
— Visit to Iceland - and the Scandinavian North • Ida Pfeiffer

... grinding its brown, flinty lavas, and thus degrading and remodeling the entire mountain from summit to base. How much denudation and degradation has been effected we have no means of determining, the porous, crumbling rocks being ill adapted for the reception and preservation of ...
— Steep Trails • John Muir

... provision of nature that is little understood, which saves the lives of thousands living in unventilated houses; and that is, the passage of pure air inward and impure air outward through the pores of bricks, wood, stone, and mortar. Were such dwellings changed to tin, which is not thus porous, in less than a week thousands and tens of thousands would be in ...
— The American Woman's Home • Catherine E. Beecher and Harriet Beecher Stowe

... his most prominent point, which, in your case, is your stomach. Men of genius like Savage, Goldsmith, Sheridan, Poe and others, it attacked their brains and made madmen of them; but it always soaks into a fool, because he is soft and porous like a sponge; and any man at a look would place you among the latter. Why, sir, you are at present full to the eyebrows, and your nose is a danger-signal to warn all young men to keep out of your track. It would ...
— From Wealth to Poverty • Austin Potter

... on the morrow would bring him another 30 pounds. He looked at the letter again. It was written on paper of an unusual texture. The surface was rough almost like blotting paper and in some places the ink absorbed by the porous surface had run. The blank sheets had evidently been inserted by a man in so violent a hurry that he had ...
— The Clue of the Twisted Candle • Edgar Wallace

... ground, pushing aside the pebbles and earth. Soon after the seed thrusts out of the same crevice another arm that has an instinct to go upward to the light. Neither of these arms is yet solid and strong. They are beyond expression tender, delicate, and porous, but the one is to become great roots that reach all over an acre, and the other one of California's big trees, thirty feet in diameter and four hundred ...
— Among the Forces • Henry White Warren

... you a poem must be kept AND USED, like a meerschaum, or a violin. A poem is just as porous as the meerschaum;—the more porous it is, the better. I mean to say that a genuine poem is capable of absorbing an indefinite amount of the essence of our own humanity,—its tenderness, its heroism, its regrets, its aspirations, so as to be gradually stained through with ...
— The Autocrat of the Breakfast-Table • Oliver Wendell Holmes, Sr. (The Physician and Poet not the Jurist)

... for him. Josh would eat a little food now and then, just to be sociable, but what he really lived on was tobacco. Usually kept a chew in one cheek and a cob pipe in the other. He was a powerful hand for a joke and had one of those porous heads and movable scalps which go with a sense of humor in a small village. Used to scare us boys by drawing in on his pipe and letting the smoke sort of leak out through his eyes and ears and nose. Pretended that he was the devil and that he was on fire ...
— Letters from a Self-Made Merchant to His Son • George Horace Lorimer

... conducted and that it should be under proper control. For ordinary bricks the firing atmosphere should be oxidizing, and the finishing temperature should be adjusted to the nature of the clay, the object being to produce a hard strong brick, of good shape, that will not be too porous and will withstand the action of frost. The finishing temperature ranges from 900 deg. C. to 1250 deg. C., the usual temperature being about 1050 deg. C. for ordinary bricks. As before mentioned, lime-clays require a higher firing temperature (usually about 1150 deg. C. to 1200 deg. C.) in order ...
— Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 - "Brescia" to "Bulgaria" • Various

... hurry to get away. Since the quarrying of the rock had commenced, my work had been overseeing the native help, of which we had some fifteen cutting and hauling. In numerous places within a mile of headquarters, a soft porous rock cropped out. By using a crowbar with a tempered chisel point, the Mexicans easily channeled the rock into blocks, eighteen by thirty inches, splitting each stone a foot in thickness, so that when ...
— A Texas Matchmaker • Andy Adams

... I do not mean by "stony soils" land on which many stones are lying, for on that very account it may be most suitable; but I mean land which shows a pebbly stratum just below the surface, or such as is of a porous, stony nature. In the choice of situation care must be taken to select that which is as much as possible protected against the south-east wind, because its dry influence is very injurious to the coffee plant, and also prevents the growth of the Erythrina (known here locally as the Dadap tree) ...
— The Commercial Products of the Vegetable Kingdom • P. L. Simmonds

... perfect silver that is brought from Peru is in the forms called pinnas by the Spaniards, being extremely porous lumps of silver, as they are the remainder of a paste composed of silver dust and mercury, whence the latter being exhaled or evaporated, leaves the silver in a spongy mass, full of holes, and very light. This is the kind of silver which is put into various forms by the merchants, ...
— A General History and Collection of Voyages and Travels, Volume 11 • Robert Kerr



Words linked to "Porous" :   porousness, holey, pore, poriferous, nonporous, porose



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