"Concave" Quotes from Famous Books
 ... lower jaw and chin. My putative Russian, still in possession of the rug, let his mild gaze stray over the dingy ornaments of the room. The other drew near, and his umbrella dealt a playful poke at the concave melancholy waistcoat. "A penny ha'penny ...
— A Passionate Pilgrim • Henry James
... on her brow the light Of heavenly wisdom shone; nor roved her eyes. Save to the shadowy cliffs majestic height, Or the blue concave ...
— The Poetical Works of Beattie, Blair, and Falconer - With Lives, Critical Dissertations, and Explanatory Notes • Rev. George Gilfillan [Ed.]
... intelligence, held conversation with man, and with themselves; the elements were deified by its songs, every thing was figuratively detailed in harmonious lays. The sky, which according to the then philosophy, was an arched concave, spreading over the earth, which was supposed to be a level plain; (for the doctrine of antipodes is of rather modern date) was itself made a god; was considered a more suitable residence, as making a greater distinction for these imaginary deities ...
— The System of Nature, Vol. 2 • Baron D'Holbach
... Massoniana, Sieb. (MASSON'S PINE.) Leaves in twos, 4 to 6 in. long, rather stiff, concave on one side and convex on the other, twisted but not curved; sharp-pointed, of a fresh, bright green color. Cones 1 to 11/2 in. long, conical, incurved, solitary but numerous, with closely overlapping scales terminating in slender prickles. An upright, compact tree, ...
— Trees of the Northern United States - Their Study, Description and Determination • Austin C. Apgar
... they are compelled to pursue. Not only have they to cross wide snow-covered districts, but frequently to pass across frozen expanses of water. To enable them to do this in the winter, the frog of the foot is almost entirely absorbed, and the edges of the hoof, now quite concave, grow out in sharp ridges, each division on the under surface presenting the appearance of a huge mussel-shell, and serving the office of natural skates. So rapidly does the shell increase, that the frog ...
— The Western World - Picturesque Sketches of Nature and Natural History in North - and South America • W.H.G. Kingston
... imperfect essays. He leaped the fence and saw that all nature was a garden[143]. He felt the delicious contrast of hill and valley changing imperceptibly into each other, tasted the beauty of the gentle swell, or concave swoop, and remarked how loose groves crowned an easy eminence with happy ornament, and while they called in the distant view between their graceful stems, removed and extended the perspective by delusive ...
— Flowers and Flower-Gardens • David Lester Richardson
... ended upon the shores of Acheron. However, he was just about to start upon that passage—for the spirit of his race was up—when a dull grating sound, as of footsteps crunching grit, came to his prettily concave ears. ...
— Mary Anerley • R. D. Blackmore
... of the dawn. The blue sky now turned more softly gray; the great watch-stars shut up their holy eyes; the east began to kindle. Faint streaks of purple soon blushed along the sky; the whole celestial concave was filled with the inflowing tides of the morning light, which came pouring down from above in one great ocean of radiance; till at length, as we reached the Blue Hills, a flash of purple fire blazed out from ...
— Choice Specimens of American Literature, And Literary Reader - Being Selections from the Chief American Writers • Benj. N. Martin
... giants in my armies; Mine anger's at the highest, and I could shake The firm foundation of the earthly globe; Could I but grasp the poles in these two hands I'd pluck the world asunder. He would scale heaven, and when he had ——got beyond the utmost sphere, Besiege the concave of this universe, And hunger-starve the gods till they confessed What furies ...
— Curiosities of Literature, Vol. II (of 3) - Edited, With Memoir And Notes, By His Son, The Earl Of Beaconsfield • Isaac D'Israeli
... of course, an instant's hush in the garden. We were not used to paradoxes, and we felt as concave images must feel when they first look upon the world. It was as amazing as if we had been told that God grieves with us instead of afflicting us, ...
— Friendship Village • Zona Gale
... of heaven expand into inconceivable dimensions, the stars would be seen to be scattered along the sky like the sands upon the sea-shore. Each bright particular star would be magnified a thousand times, seeming vastly larger, and yet vastly more distant. The whole concave of heaven then would appear a thousand times larger than it does to our eyes, that is, it would appear a thousand times over more like its real size, though even then, eyes thus grandly gifted would fall immeasurably short of the reality of the universe which lies in the bosom of God! ...
— A Lecture on Physical Development, and its Relations to Mental and Spiritual Development, delivered before the American Institute of Instruction, at their Twenty-Ninth Annual Meeting, in Norwich, Conn • S.R. Calthrop
... roaring of the approaching hurricane. The mighty cloud now expands its sable wings, extending from north to south, and is driven irresistibly on by the tumultuous winds, spreading its livid wings around the gloomy concave, armed with terrors of thunder and fiery shafts of lightning. Now the lofty forests bend low beneath its fury; their limbs and wavy boughs are tossed about and catch hold of each other; the mountains tremble and seem to reel about, and the ancient hills to be ...
— Choice Specimens of American Literature, And Literary Reader - Being Selections from the Chief American Writers • Benj. N. Martin
... an ellipse, they are not equal in dimensions and come under two categories. The larger, outside ones are each of them almost a third of the circumference and overlap one another slightly. Their lower end bends into a concave curve to form the bottom of the bag. Those inside, which are considerably smaller, increase the thickness of the sides and fill up the gaps left ...
— Bramble-bees and Others • J. Henri Fabre
... of using the differential thermometer, which is particularly well adapted for these experiments. —I place an iron bullet, (PLATE III. Fig. 1.) about two inches in diameter, and heated to a degree not sufficient to render it luminous, in the focus of this large metallic concave mirror. The rays of heat which fall on this mirror are reflected, agreeably to the property of concave mirrors, in a parallel direction, so as to fall on a similar mirror, which, you see, is placed opposite to the first, at the distance of about ten feet; thence ...
— Conversations on Chemistry, V. 1-2 • Jane Marcet
... in the middle of a large hollow sphere, leaving a space of something more than half an inch between them. The interior sphere was insulated, the external one uninsulated. To the former he communicated a definite charge of electricity. It acted by induction upon the concave surface of the latter, and he examined how this act of induction was effected by placing insulators of various kinds between the two spheres. He tried gases, liquids, and solids, but the solids alone gave him positive results. He constructed two ...
— Faraday As A Discoverer • John Tyndall
... seventeenth and eighteenth century Romanism. It doesn't impress the imagination, but richly feeds the curiosity, by which I mean one's sense of the curious; suggests no legends, but innumerable anecdotes a la Stendhal. There is a vast dome, filled with a florid concave fresco of tumbling foreshortened angels, and all over the ceilings and cornices a wonderful outlay of dusky gildings and mouldings. There are various Bernini saints and seraphs in stucco-sculpture, astride of the tablets and door- tops, backing against their rusty machinery of coppery nimbi ...
— Italian Hours • Henry James
... grinding-teeth of Plagiolophus are similar to those of Anchitherium, and their crowns are as thinly covered with cement; but the grinders diminish in size forwards, and the last lower molar has a large hind lobe, convex outwards and concave inwards, as in Palceotherium. The ulna is complete and much larger than in any of the Equidae, while it is more slender than in most of the true Palaeotheria; it is fixedly united, but not ankylosed, with the radius. There are three toes in the fore limb, the outer ones ...
— Critiques and Addresses • Thomas Henry Huxley
... permanently set to run no matter from what direction the wind may be blowing. Tests instituted with the object of determining the pressure which the wind exerts on the cup of a "Robinson" anemometer have shown that when the breeze blows into the concave side of the cup, its effect is rather more than three times as strong as when it blows against the convex side. At any given time the principal part of the work done by a windmill constructed on this principle is being ...
— Twentieth Century Inventions - A Forecast • George Sutherland
... a watch-glass, the contents are in a state of decomposition; the bulging being occasioned by the gases generated during the chemical changes. If the contents of the canister be sound, the top and bottom will be either quite flat, or slightly concave. ...
— Chambers's Edinburgh Journal, No. 460 - Volume 18, New Series, October 23, 1852 • Various
... of the object looked at by concentrating at a focus the rays of light proceeding from that object. The refractor achieves this by means of a carefully shaped lens, called the object glass, or objective. The reflector, on the other hand, forms the image at the focus of a concave mirror. ...
— Pleasures of the telescope • Garrett Serviss
... even, plane, smooth; prostrate, prone; stale, insipid, vapid, tasteless, unsavory, unpalatable, mawkish; peremptory, unqualified, positive; spatulous, spatulate; sonant, vocal. Antonyms: convex, concave, warped, ...
— Putnam's Word Book • Louis A. Flemming
... arrangement of rooms along a narrow ledge at the top of the talus, where the cliff wall is not coved or concave, but convex. Some of these little rooms may have been used only for storage, but others were undoubtedly habitations. Figure 55 shows an example in which the back wall is curved, as though it was either built over ...
— The Cliff Ruins of Canyon de Chelly, Arizona • Cosmos Mindeleff
... his concave chest. "Bum lungs. I came down here to shuffle off, and I'm waiting for it to happen. What ...
— Rainbow's End • Rex Beach
... to be falling when the mercury in the tube is sinking, at which time its upper surface is sometimes concave or hollow. The barometer is rising when the mercurial column is lengthening; its upper surface being then, as in ...
— Barometer and Weather Guide • Robert Fitzroy
... sharp point. The side edge which is used for cutting is the one which is not cut away at the end; and when it gets blunt it is renewed by simply peeling off a length of fibre, thus producing a new edge, bevelled inwards towards the concave side of the implement, and making a hard and very sharp fresh cutting edge. The point can of course be sharpened at any time ...
— The Mafulu - Mountain People of British New Guinea • Robert W. Williamson
... are so named from their resemblance to ships. The construction is similar to that of the talayots. The outer wall has a considerable batter. The famous Nau d'Es Tudons is about 36 feet in length. The facade is slightly concave. A low door (a) gives access through a narrow slab-roofed passage (b) to a long rectangular chamber (c), the method of whose roofing is uncertain. All the naus are built with their facades to the south or south-east, with the exception of that of Benigaus Nou, the inner end of which is cut ...
— Rough Stone Monuments and Their Builders • T. Eric Peet
... simply by E.M. variation in nerve, is at first slight. In the second part, there is a rapidly increasing effect with increased stimulus. Finally, a tendency shows itself to approach a limit of response. Thus we find the curve at first slightly convex, then straight and ascending, and lastly, concave to ...
— Response in the Living and Non-Living • Jagadis Chunder Bose
... sell on the river for ten sous each. It is smoked either in the "Kondukwe" or in the Ojo. The latter, literally meaning a torch, is a polished cow-horn, closed at the thick end with wood, and banded with metal; a wooden stem, projecting from the upper or concave side, bears a neat "chillam" (bowl), either of clay or of brown steatite brought from the upper Gaboon River. This rude hookah is half filled with water; the dried hemp in the bowl is covered with what ...
— Two Trips to Gorilla Land and the Cataracts of the Congo Volume 1 • Richard F. Burton
... but, satisfied with the practical part, they pushed their enquiries no farther. Of pneumatics, hydrostatics, electricity, and magnetism, they may be said to have little or no knowledge; and their optics extend not beyond the making of convex and concave lenses of rock crystal to assist the sight in magnifying, or throwing more rays upon, small objects and, by collecting to a focus the rays of the sun, to set fire to combustible substances. These lenses are cut with a saw and afterwards polished, the powder of crystal being used in both operations. ...
— 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
... still—I crossed to the lee side of the deck to look at them—The Wave, seeing some one on the hammock nettings, sheered close to, under the Firebrand's lee quarter, and some one asked, "Do you want to speak us?" The man's voice, reflected from the concave surface of the schooner's mainsail, had a hollow, echoing ...
— Tom Cringle's Log • Michael Scott
... the two high spiral stone columns that support the roof in front. The bases of these columns bore conventionalized vases with sunflowers and leaf ornamentations, while the capitols were in three superposed fluted tiers, the uppermost being the largest in diameter. The frieze of the ceiling was concave, made of bits of looking-glass and gold, and the ceiling itself was also entirely composed of mirrors. The back was of shiny green and blue, with eight stars and two large looking-glasses, while at the sides there was a ...
— Across Coveted Lands - or a Journey from Flushing (Holland) to Calcutta Overland • Arnold Henry Savage Landor
... other at their heels. The resemblance extended to his astonished countenance. His big chest heaved. Like many another wounded giant before him, he experienced the insufficiency of interjections to solace pain. For them, however, the rocks were handy to fling, the trees to uproot; heaven's concave resounded companionably to their bellowings. Relief of so concrete a kind is not to be obtained ...
— The Shaving of Shagpat • George Meredith
... is the main agent, both in ordinary and extraordinary respiration. In its quiescent state it presents its convex surface towards the thorax, and its concave one towards the abdomen. The anterior convexity abuts upon the lungs; the posterior concavity is occupied by some ...
— The Dog - A nineteenth-century dog-lovers' manual, - a combination of the essential and the esoteric. • William Youatt
... it not above half an inch diameter, and very even; these I fix very strongly together by the help of very hard Cement, and then fit the whole Glass ABCDEF into a long Board, or Frame, in such manner, that almost half the head AB may lye buried in a concave Hemisphere cut into the Board RS; then I place it so on the Board RS, as is exprest in the first figure of the first Scheme; and fix it very firm and steady in that posture, so as that the weight ...
— Micrographia • Robert Hooke
... Colonel De Courcey was justified by the failure of the corps of A. J. Smith, and the command of Colonel Lindsey, to advance simultaneously to the assault. Both had the same difficulties to encounter —impassable bayous. The enemy's line of battle was concave, and De Courcey advanced against his centre—hence he sustained a concentric fire, and the withdrawal of Steele from the front of the enemy's right on the 28th ult. enabled the enemy on the following day to concentrate ...
— The Memoirs of General W. T. Sherman, Complete • William T. Sherman
... a mold wheel having a series of cogs interposed by a series of concave stops, blanks or abutments upon its periphery, a drive wheel having cogs and a blank surface on its perimeter so that the mold wheel may be moved, stopped and locked by said drive wheel which has a continuous movement, substantially as and ...
— Scientific American, Vol. 17, No. 26 December 28, 1867 • Various
... which enamel and bespangle the concave expanse, or canopy of heaven, by numbers and lustre, make the night beauteous and delightful, which would otherwise be dark and horrible. The UNIVERSE has no determinate form or figure at all; for it is every way infinite and unlimited, and is called ...
— A Museum for Young Gentlemen and Ladies - A Private Tutor for Little Masters and Misses • Unknown
... ranch and its out-houses was most interesting. It was carried out entirely with trunks of palm trees. These, split in half and cleared of all sap, made very effective roofing, placed alternately in concave and convex form, so that the ridges of the two lengths of trunk placed bark upward rest in the hollow of the intervening trunk. Naturally, all rain water drains off the convex half into the concave trunk and flows ...
— Argentina From A British Point Of View • Various
... hemisphere was hell, shared as a vast cone, of which the apex was the centre of the globe; and here, according to Dante, was the seat of Lucifer. The concave of Hell had been formed by his fall, when a portion of the solid earth, through fear of him, ran back to the southern uninhabited hemisphere, and formed there, directly antipodal to Jerusalem, the mountain of Purgatory which rose from ...
— The Divine Comedy, Volume 1, Hell [The Inferno] • Dante Alighieri
... to it from the base of certain rugged rocks whose outlines were grotesque against the evening sky. Rowland had seen grander places in Switzerland that pleased him less, and whenever afterwards he wished to think of Alpine opportunities at their best, he recalled this grassy concave among the mountain-tops, and the August days he spent there, resting deliciously, at his length, in the lee of a sun-warmed boulder, with the light cool air stirring about his temples, the wafted odors of the pines in his ...
— Roderick Hudson • Henry James
... solitary and untrodden did it look as its still more stately sister, the Hoch Gall, a mountain deservedly the especial pride of the district, its lofty pinnacle piercing the sky, whilst a vast sheet of thick, pure snow hung straight and smooth down its concave sides, a huge mountain-buttress linking the lower portion of this snow pyramid to the white, glittering expanse of the Gross Lengstein Glacier—a buttress of many thousand feet, standing prominently forth like an antediluvian monster, on whose ...
— Lippincott's Magazine of Popular Literature and Science, Vol. XII, No. 29. August, 1873. • Various
... least thirty of the wolves, and the five figures that they saw reclining, silent and motionless, against the unburned portion of the house might well have been those of the dead and scalped, whom they had found in such numbers everywhere. They drew near in a semicircular group, its concave front extended toward the fire, the greatest wolves at the center. Despite many feastings, the wolves were hungry again. Nothing had opposed them before, but caution was instinctive. The big gray leaders did not mind the ...
— The Scouts of the Valley • Joseph A. Altsheler
... Encantadas tortoise. But next evening, strange to say, I sat down with my shipmates, and made a merry repast from tortoise steaks, and tortoise stews; and supper over, out knife, and helped convert the three mighty concave shells into three fanciful soup-tureens, and polished the three flat yellowish ...
— The Piazza Tales • Herman Melville
... from the startled natives, these innumerable bars began to move back and forth, with a swift dancing motion, along the whole extent of both arches, passing one another from side to side with such bewildering rapidity that the eye was lost in the attempt to follow them. The whole concave of heaven seemed transformed into one great revolving kaleidoscope of shattered rainbows. Never had I even dreamed of such an aurora as this, and I am not ashamed to confess that its magnificence for a moment overawed and almost frightened me. The ...
— Tent Life in Siberia • George Kennan
... this titanic battle a huge disc appeared, carried by the gaseous clouds. It was a concave lens, like some powerful optical instrument. But instead of focusing beams of light, it reflected, not only light but all forms of energy. As the spheres attacked they were shattered into spores and ...
— The Whispering Spheres • Russell Robert Winterbotham
... the globe, had 4 iron supporters, and was a table about 20 inches in diameter, and 6 in thickness! The edge was cut into 12 concave superficies like so many half-cylinders; on each of which was a dial showing the hour by the shade of a fleur-de-lis fixed at the top of each half-cylinder. From the top of this table issued 4 iron branches, with glass bowls, like those of the first, second, and third pieces, though proportionally ...
— The Mirror of Literature, Amusement, and Instruction, Vol. 14, - Issue 400, November 21, 1829 • Various
... explained on scientific grounds. It arose from the concave form of the gallery and the conducting power of the rock. There are many examples of this propagation of sounds which remain unheard in the intermediate space. I remember that a similar phenomenon has ...
— A Journey to the Interior of the Earth • Jules Verne
... distance harps By heavenly seraphs strung, And in the concave of the sky The holy vespers sung! Oh, thou great Source of light and power, We bless thee for ...
— The Modern Scottish Minstrel, Volume V. - The Songs of Scotland of the Past Half Century • Various
... mounted on a revolving wheel. Fig. 36 shows the nozzles and a turbine wheel. The wheel is made as a solid disc, to the circumference of which the vanes are dovetailed separately in a single row. Each vane is of curved section, the concave side directed towards the nozzles, which, as will be gathered from the "transparent" specimen on the right of our illustration, gradually expand towards the mouth. This is to allow the expansion of the steam, and a consequent gain of velocity. ...
— How it Works • Archibald Williams
... diminished. And they are not regarded as monstrosities but only as the most natural of artificialities; for they are a part of a horticultural whole. To walk into a Japanese garden is like wandering of a sudden into one of those strange worlds we see reflected in the polished surface of a concave mirror, where all but the observer himself is transformed into a fantastic miniature of the reality. In that quaint fairyland diminutive rivers flow gracefully under tiny trees, past mole-hill mountains, till they fall at last into lilliputian lakes, ...
— The Soul of the Far East • Percival Lowell
... through shallows of white cloud. Beyond the trees and the few houses was the great concave of darkness, the sea, and the moonlight. The moon was there to put a cool hand of absolution ...
— The Trespasser • D.H. Lawrence
... sixteen inches and more in diameter. The surface is smooth or covered with little grains (granular) or with minute scales (squamulose) shining like satin, or kid-like in its texture. It may be rounded and depressed (concave), elevated (convex), level (plane), or with a little mound in the centre (umbonate). It may be covered with warts, marked with lines (striate), or zoned with circles. The margin may be acute or obtuse, rolled backward or upward ...
— Among the Mushrooms - A Guide For Beginners • Ellen M. Dallas and Caroline A. Burgin
... over and above these questions further matter for discussion. For instance, why is it that in flat mirrors all images and objects reflected are shown in almost precisely their original dimensions, whereas in convex and spherical mirrors everything is seen smaller, in concave mirrors on the other hand larger than nature? Why again and under what circumstances are left and right reversed? When does one and the same mirror seem now to withdraw the image into its depths, now to extrude it forth ...
— The Apologia and Florida of Apuleius of Madaura • Lucius Apuleius
... come. Despite the many wet and gusty days which April had thrust in rude challenge upon reluctant May, in the glory of the triumphant sun which flooded the concave blue of heaven and the myriad shaded green of earth, the whole world knew to-day, the whole world proclaimed that spring had come. The yearly miracle had been performed. The leaves of the maple trees lining the village ...
— The Major • Ralph Connor
... mens sana in corpore sano. A man all lucid, and in equilibrium. His intellect a clear mirror geometrically plane, brilliantly sensitive to all objects and impressions made on it and imaging all things in their correct proportions; not twisted up into convex or concave, and distorting everything so that he cannot see the truth of the matter, without endless groping and manipulation: healthy, clear, and free and discerning truly ...
— Why Worry? • George Lincoln Walton, M.D.
... James, standing sideways, the concave lines of his tall, lean figure displayed to advantage in shirt-sleeves and evening waistcoat, his head bent, the end of his white tie peeping askew from underneath one white Dundreary whisker, his eyes peering with intense concentration, his ...
— Forsyte Saga • John Galsworthy
... wood-cut portrait of a chamber- set occupying the foreground and the clare-obscure worked up with various sizes and styles of black type, possesses far more charm for him than does the deep blue of our Southern sky, whose mighty concave seems to reach to Infinity's uttermost verge; a two-story brick livery stable or laundry is to him far more interesting than the splendors of the Day-god rising from the ocean's blue; an eighty-cent dollar with its lying legend more beautiful in his eyes than even Austin's violet crown bathed ...
— Volume 1 of Brann The Iconoclast • William Cowper Brann
... talents; for, we must always bear in mind that with this man, whose feelings and desires were in such constant action and reaction, with this man whose will imposed his intellectual notions on his feelings, and his emotional tendencies on his thoughts, the thing which he enjoys is always as the concave to the convex of the thing which he produces. But although Alfieri was not a poet, and was not even a potential novel writer, he was, in a sense, essentially a dramatist; though even here we must distinguish and diminish. Alfieri was not a man who cared for rapid action or for intricate ...
— The Countess of Albany • Violet Paget (AKA Vernon Lee)
... breakfast. The end of his spare time had now arrived, and emerging from the garden by getting over the hedge at the back he pursued a path northward, till he came to a wide and lonely depression in the general level of the upland, which was sown as a corn-field. This vast concave was the scene of his labours for Mr Troutham the farmer, and he descended ...
— Jude the Obscure • Thomas Hardy
... her shape—alas! how Saturn wrecks, And bends, and corkscrews all the frame about, Doubles the hams, and crooks the straightest necks, Draws in the nape, and pushes forth the snout, Makes backs and stomachs concave or convex: Witness those pensioners called In and Out, Who all day watching first and second rater, Quaintly unbend themselves—but grow ...
— The Poetical Works of Thomas Hood • Thomas Hood
... perennial wheel Of Nature, and looks back on all the stars, Whose blended light, as with a milky zone, Invests the orient. Now, amazed she views The empyreal waste, where happy spirits hold Beyond this concave heaven, their calm abode; And fields of radiance, whose unfading light Has traveled the profound six thousand years, Nor yet arrived in sight of mortal things. Even on the barriers of the world, untired She meditates the eternal depth below; Till half-recoiling, ...
— Library of the World's Best Literature, Ancient and Modern, Vol. 1 • Charles Dudley Warner
... solstice in June. For three days before the festival the people fasted, men did not sleep with their wives, and no fires were lighted in Cuzco, the capital. The sacred new fire was obtained direct from the sun by concentrating his beams on a highly polished concave plate and reflecting them on a little cotton wool. With this holy fire the sheep and lambs offered to the sun were consumed, and the flesh of such as were to be eaten at the festival was roasted. Portions ...
— Balder The Beautiful, Vol. I. • Sir James George Frazer
... double connection with its office as a measurer of time or motion and its relation to the transit of the sun in the sky, that Hermes forms it from the tortoise-shell, which is the image of the dappled concave of the cloudy sky. Thenceforward all the limiting or restraining modes of music belong to the Muses; but the more passionate music is wind music, as in the Doric flute. Then, when this inspired music becomes degraded in ...
— The Queen of the Air • John Ruskin
... comparing the equally unreal image formed by a mirror with that formed by refraction in water. He noticed how the bottom of a vessel containing water appears to rise more and more away from the vertical, and at once jumped to the analogy of a concave mirror, which magnifies the image, while a convex mirror was likened to a rarer medium. This line of attack also failed him, as did various attempts to find relations between his measurements of refraction and conic sections, and he broke off suddenly with a diatribe against Tycho's critics, ...
— Kepler • Walter W. Bryant
... belly is drawn up by the large yelk-sac (d), and fastened to the inner wall of the embryonic membrane by the short and thick pedicle (b). Hence the normal convex curve of the back (Figure 1.190) is here changed into an abnormal concave surface. h heart, m parietal mesoderm. The spots on the outer wall of the serolemma are the roots of the branching chorion-villi, which are free at ...
— The Evolution of Man, V.1. • Ernst Haeckel
... discern an irregular pink crescent, with the concave side downwards, somewhere in the blackness beyond the bows. He rubbed his eyes, and said nothing, believing that the unaccustomed strain of gazing into the dark had affected his sight. But the pink crescent brightened and deepened, and speedily it was joined by two others, equally irregular ...
— The Captain of the Kansas • Louis Tracy
... pond we had just left was ascertained to be the only one in the little channel. I sought a good position for a depot camp on the newly-discovered river, and found one extremely favourable, on a curve concave to the N. W., overlooking, from a high bank, a dry ford, on a smooth rocky bed; and having also access to a reach of water, where the bottom was hard and firm. We approached this position with our carts, in the midst of smoke and flame; the natives having availed themselves of a hot wind ...
— Journal of an Expedition into the Interior of Tropical Australia • Thomas Mitchell
... highly modified, and are strikingly different from the normal form seen in locomotive types of the group. The oyster may be taken as the type of the form adopted by attached pelecypods. The two valves are unequal, the attached valve being concave, the free valve flat; but they are not only unequal, they are often very dissimilar—as different as if they belonged to a distinct type in what would be considered typical forms. This is remarkable as a case of acquired and inherited ...
— Lamarck, the Founder of Evolution - His Life and Work • Alpheus Spring Packard
... admitted, "yet I have found the comfortable, convex and concave characters often really more difficult in the long run. You must have some hard and durable rock on which to found understanding and security. The soft, crumbling people may be lovable; but they are useless as sand at a crisis. They are always slipping ...
— The Spinners • Eden Phillpotts
... best of their bows was made of a single piece of fir, four feet eight inches in length, flat on the inner side and rounded on the outer, being five inches in girth about the middle, where, however, it is strengthened on the concave side, when strung, by a piece of bone ten inches long, firmly secured by treenails of the same material. At each end of the bow is a knob of bone, or sometimes of wood covered with leather, with a deep notch for the reception of the string. The only wood which they can procure, not possessing ...
— Three Voyages for the Discovery of a Northwest Passage from the • Sir William Edward Parry
... two inches in diameter and thirty inches long. In the farther end of the tube gleamed a lump of yellow metal, which I took to be gold. Hall and I were seated near another table about twenty-five feet distant from the tube, and on this table was an apparatus furnished with a concave mirror, whose optical axis was directed towards the tube. It occurred to me at once that this apparatus would be suitable for experimenting with electric waves. Wires ran from it to the floor, and in the cellar beneath was audible the beating of an engine. My companion made an adjustment or ...
— The Moon Metal • Garrett P. Serviss
... mass, composed of the hardest substance then known, it lay in what might be called a series of flakes about a center, and, in wise hands, these flakes could be chipped or pried away unbroken. The flake, once won, was often slightly concave on the outside and convex on the other, but the core of the stone was something more equally balanced in formation and, when properly finished, made a mighty spearhead. For the heavy axes and mallets, other stones, such as we now call granite, redstone or quartose grit, were often ...
— The Story of Ab - A Tale of the Time of the Cave Man • Stanley Waterloo
... green floating from the mouth of a cavern, suggest a mermaid's hair, and her visible presence would scarcely add to the wonders in this under-world of glamour and mystery. Shells, pink and pearly, brown and lilac, scarlet and cobalt, strew the flower-decked floor with infinite variety, concave and spiral, ribbed and fluted, fretted and jagged—the satin smoothness of convoluted forms lying amid rugged shapes bristling with spines and needles. We gaze almost with awe at the lovely vision of a dainty Nautilus, sailing his fairy boat down ...
— Through the Malay Archipelago • Emily Richings
... supposed plane surface proves to be convex, the image will not be sharply defined in the telescope until the eyepiece is moved away from the object glass; while if the converse is the case, and the supposed plane is concave, the eyepiece must now be moved toward the objective in order to obtain a sharp image, and the amount of convexity or concavity may be known by the change in the focal plane. If the surface has periodic or irregular errors, no sharp image can be obtained, no matter how much the eyepiece may ...
— Scientific American Supplement, No. 484, April 11, 1885 • Various
... old small organ pipe, jammed a suitably chosen spectacle glass into either end, one convex the other concave, and behold, he had the half of a wretchedly bad opera glass capable of magnifying three times. It was better than the Dutchman's, ...
— Pioneers of Science • Oliver Lodge
... rule, two reflectors are fixed in the same holder; one a concave mirror, the other a plane one. The former brings the rays of light to a point or focus while the latter simply passes the beam of light along just as it received it, viz., as a parallel beam ...
— The Story of the Cotton Plant • Frederick Wilkinson
... height, with their horizontal strata abruptly cut off, showing the immense mass of matter which has been removed. Nearly this whole line of coast consists of a series of greater or lesser curves, the horns of which, and likewise certain straight projecting portions, are formed of hard rocks; hence the concave parts are evidently the effect and the measure of the denuding action on the softer strata. At the foot of all the cliffs, the sea shoals very gradually far outwards; and the bottom, for a space of some miles, everywhere ...
— South American Geology - also: - Title: Geological Observations On South America • Charles Darwin
... some of the inferior grades of flour, and the work is done by means of grooved and plain rollers, made of chilled iron or porcelain. In some cases disks of chilled iron, suitably furrowed, are used, and in others concave mills, consisting of a cylinder running against a concave plate. In Minneapolis the chilled iron rolls take the precedence of all ...
— Scientific American Supplement No. 275 • Various
... measures the perennial wheel Of Nature, and looks back on all the stars, Whose blended light, as with a milky zone, 200 Invests the orient. Now amazed she views The empyreal waste, [Endnote B] where happy spirits hold, Beyond this concave heaven, their calm abode; And fields of radiance, whose unfading light ...
— Poetical Works of Akenside - [Edited by George Gilfillan] • Mark Akenside
... Additional features not mentioned in diagnoses: Head wider than long, about as wide as body; supratympanic fold present; canthus rostralis rounded, loreal region slightly concave, nearly vertical; nostril at tip of snout; pupil horizontal; no teeth on maxillary, premaxillary, or vomer; tongue small, round, thick, not notched behind, free posteriorly for one-sixth of length; choanae ...
— Systematic Status of a South American Frog, Allophryne ruthveni Gaige • John D. Lynch
... distributed through the chambers. The third story, save two bed-chambers,—one for the housekeeper, the other for the footman,—had been fitted up for an observatory. The lenses and achromatic glasses, tubes and specula, concave mirrors, and object-prisms, and the huge, rough old telescope, peering through the roof, were still there as their owner had left them. All appliances of housekeeping were absent, and Cavendish House was destitute of ...
— Prairie Farmer, Vol. 56: No. 3, January 19, 1884. - A Weekly Journal for the Farm, Orchard and Fireside • Various
... portions were served by a person at the ringing of a bell, and delivered out by means of what in religious houses is termed a tour—a machine like the section of a cask, that, by turning round on a pivot, exhibits whatever is placed on the concave side, without discovering the person who moves it. One day this dog, who had only received a few scraps, waited till the paupers were all gone, took the rope in his mouth, and rang the bell. His stratagem succeeded. He repeated ...
— Anecdotes of Dogs • Edward Jesse
... bring. They found the taxi and drove out at once across the great stone bridge leading from the Bastide Station and suburb on the east bank to the main city on the west. In front of them lay the huge concave sweep of quays fronting the Garonne, here a river of over a quarter of a mile in width, with behind the massed buildings of the town, out of which here and there rose church spires and, farther down-stream, the three imposing columns of the Place ...
— The Pit Prop Syndicate • Freeman Wills Crofts
... spurious woman, had thus chanted to her comity, the chorus straightway shrills with trembling tongues, the light tambour booms, the concave cymbals clang, and the troop swiftly hastes with rapid feet to verdurous Ida. Then raging wildly, breathless, wandering, with brain distraught, hurrieth Attis with her tambour, their leader through dense woods, like an untamed heifer ...
— The Carmina of Caius Valerius Catullus • Caius Valerius Catullus
... from one building, the vaulted baptistery with its marble font from another, the pulpits and ambones from a third the tribune from a fourth, the round brick bell-tower from a fifth, and then to cover all the concave roofs and chapel walls ...
— Sketches and Studies in Italy and Greece, Second Series • John Addington Symonds
... could see rifts and places in plenty where he could have climbed high enough to be beyond reach of the water even if it rose thirty or forty feet; but they were all on the other side, which was slightly convex, while their side, as the guide had pointed out, was concave, and would have matched exactly if the sides had ...
— The Crystal Hunters - A Boy's Adventures in the Higher Alps • George Manville Fenn
... must be identified and distinguished from those of the lower mammals. If the hair has been pulled out from the root, the microscope will show that the bulbous root has a concave surface which fitted over the hair papilla, or that the root is encased ...
— Aids to Forensic Medicine and Toxicology • W. G. Aitchison Robertson
... 3, are vertical, and they generally form a ridge parallel to the southern skirts of the Grampians. The superior strata, Nos. 2 and 1, become less and less inclined on descending to the valley of Strathmore, where the strata, having a concave bend, are said by geologists to lie in a "trough" or "basin." Through the centre of this valley runs an imaginary line A, called technically a "synclinal line," where the beds, which are tilted in opposite directions, may be supposed to meet. It is ...
— The Student's Elements of Geology • Sir Charles Lyell
... neighbouring convent of the Capuchinas, and the same year the altar was concluded, and the Virgin brought back in solemn procession, in the midst of an innumerable multitude. This great altar, which cost from three to four hundred thousand dollars, is a concave hexagonal, in the midst of which rise two white marble pillars, and on each side two columns of rose-coloured marble, of the composite order, which support the arch. Between these are two pedestals, on which are the images of San Joaquin and Santa ...
— Life in Mexico • Frances Calderon De La Barca
... women share in the qualities noted. Both men and women were all over the place, and much vigorous dancing was going on. Using the same gansa as the Ifugao, the Igorot beats it on the convex side with a regular padded drumstick, whereas the Ifugao uses any casual stick on the concave side. Moreover, the Bontok dancers went around their circle, beating their gansas the while, in a sort of lope, the step being vigorous, long, easy, and high; as in all the other dances seen, the motion was against ...
— The Head Hunters of Northern Luzon From Ifugao to Kalinga • Cornelis De Witt Willcox
... and turned it back from the pale and ghastly face, on whose brow the mysterious signet of everlasting rest was set. Still, immovable, solemn, placid—it lay beneath the gaze, with shrouded eye, and cheek like concave marble, and hueless, waxen lips. What depth, what grandeur, what duration in that repose! What inexpressible sadness, yet what sublime tranquillity! Helen held her breath, bending slowly, lower and lower, as if drawn down by a mighty, irresistible ...
— Helen and Arthur - or, Miss Thusa's Spinning Wheel • Caroline Lee Hentz
... generally killed by immersion in boiling water, which causes them to swell to twice their natural size, and are then dried and packed for market. The insects shrivel in drying, and assume the form of irregular grains, fluted and concave. The best sorts have a silvery-grey colour, with a purplish reflection, and seem to be dusted with a white powder. This appearance is often given by means of heavy spar, carbonate of lead, Venice talc, &c. A good lens, however, will mostly expose the ...
— Field's Chromatography - or Treatise on Colours and Pigments as Used by Artists • George Field
... solve. Let us look how man tried to solve it. A magnifying lens will collect the rays from any distant object, and convey them to a point called the focus. Then suppose we put this glass in the tube of an opera-glass, or pocket spy-glass, and look through the eye-hole and the concave lens, properly adjusted, in front of it, we shall see the image of the object considerably magnified. But suppose the object draws very near, we see nothing distinctly; for the rays reflected from it, which were nearly parallel while it was at a distance, ...
— Fables of Infidelity and Facts of Faith - Being an Examination of the Evidences of Infidelity • Robert Patterson
... of foot standing to him, he shortly stood on the great round-topped rock cut away beneath by the action of the waves over the entrance of the seal cave, where the water was fathomless. There he stood in comparative safety, for the concave shape of the rock beat back the waves with their own force, and though the water below him seemed to boil like a seething cauldron, just beyond the spot there was a space of almost calm. The rock, too, seemed here ...
— Dracula's Guest • Bram Stoker
... the east of Lake Aral. It is fourth in size of the lakes in Eurasia, having an area of 7115 sq. m., and lies at an altitude of 900 ft. It has the shape of a broad crescent, about 430 m. long from W.S.W. to E.N.E., having its concave side turned southwards; its width varies from 36 to 53 m. Its north-western shore is bordered by a dreary plateau, known as the Famine Steppe (Bek-pak-dala). The south-east shore, on the contrary, ...
— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 - "Baconthorpe" to "Bankruptcy" • Various
... that the main causes of the wondrous beauty and perfection of those we are looking at are the favorable direction and force of the wind, the abundance of snow-dust, and the form of the north sides of the peaks. In general, the north sides are concave in both their horizontal and vertical sections, having been sculptured into this shape by the residual glaciers that lingered in the protecting northern shadows, while the sun-beaten south sides, having never been subjected to this kind ...
— The Yosemite • John Muir
... obtained as by the ancient Romans, on a precisely similar occasion, by means of a concave mirror of polished metal. The Incas, in order to preserve purity of race, married their own sisters, as did the kings of Persia and other Oriental nations, urged by a like feeling of pride. Among the Peruvians, Mama, signified 'mother,' ...
— Continental Monthly, Vol. I, No. V, May, 1862 - Devoted To Literature And National Policy • Various
... best, I think—shows the Circumcision, where the painter has set himself various difficulties of architecture and goldsmith's work for the pleasure of overcoming them, every detail being painted with Dutch minuteness and yet leaving the picture big; while the middle panel, which is concave, depicts an Adoration of the Magi that will bear much study. The whole effect is very northern: not much less so than our own new National Gallery Mabuse. Mantegna also has a charming Madonna and Child, No. 1025, with pleasing ...
— A Wanderer in Florence • E. V. Lucas
... still more simple than the mortar and pestle, was used for making meal while the corn was too soft to be beaten. It was called a grater. This was a half-circular piece of tin, perforated with a punch from the concave side, and nailed by its edges to a block of wood. The ears of corn were rubbed on the rough edge of the holes, while the meal fell through them on the board or block, to which the grater was nailed, which, being in a slanting direction, discharged the meal into a cloth or bowl placed for its ...
— Life & Times of Col. Daniel Boone • Cecil B. Harley
... sea, he courses through the summer air. In marked contrast to this feat is his manner of flying when he indulges in a brief outburst of song on the wing. Now he flies level, with broad expanded wings nearly as round and as concave as two shells, which beat the air slowly. The song is the chief matter now, and the wings are used only to keep him afloat while delivering it. In the other case, the flight is the main concern, and the voice merely ...
— Bird Stories from Burroughs - Sketches of Bird Life Taken from the Works of John Burroughs • John Burroughs
... does a flattened conehead, like Fig. 35. The best head for this purpose is a cupped head with chamfered edges, as shown at Fig. 34 in vertical section. The center b is ground and polished into a perfect concave by means of a metal ball. The face, between the lines a a, is polished dead flat, and the chamfered edge a c finished a trifle convex. The flat surface at a is bright, but the concave b and chamfer at ...
— Watch and Clock Escapements • Anonymous
... are strung along the road. The modern pattern has a convex angle in the roof, and dormer-windows; it is a rustic adaptation of the Mansard. The antique pattern, which is far more picturesque, has a concave curve in the roof, and the eaves project like eyebrows, shading the flatness of the face. Paint is a rarity. The prevailing colour is the soft gray of weather-beaten wood. Sometimes, in the better class of houses, ...
— Little Rivers - A Book Of Essays In Profitable Idleness • Henry van Dyke
... trick put upon him may be shortly described by the fact that the female choristers were placed in an adjoining room, and that he only fired at their reflection thrown forward into that in which he slept by the effect of a concave mirror. ...
— Letters On Demonology And Witchcraft • Sir Walter Scott
... concave lobe of the inner margin of secondaries enveloping the abdomen beneath, in ...
— Explanation of Terms Used in Entomology • John. B. Smith
... it was necessity's labour lost. We were not provided with proper drain pipes but made an open conduit. We had to go to the quarry to get the stone, which we broke into small pieces, and these were set out in concave form at the bottom of the trench we had excavated after the manner in which cobble stones are laid. I believe it was considered to be an excellent piece of work, but unfortunately it was of little use. The first wind and rain ...
— Sixteen Months in Four German Prisons - Wesel, Sennelager, Klingelputz, Ruhleben • Henry Charles Mahoney
... reverse was true. I seemed to be standing in the center of a vast shallow bowl. The ground curved upward into the distance. There was no distant horizon line, only the gradual fading into shadow of the visual landscape. I was standing obviously on a concave surface, on the inside, not the ...
— The Girl in the Golden Atom • Raymond King Cummings
... to be had, and I was suffering actual hunger. The native women cook it in various ways. The entrails are chopped up and made into a delicious soup called sarapatel, which is generally boiled in the concave upper shell of the animal used as a kettle. The tender flesh of the breast is partially minced with farinha, and the breast shell then roasted over the fire, making a very pleasant dish. Steaks cut from the breast and cooked with the ...
— The Naturalist on the River Amazons • Henry Walter Bates
... the base. They were composed of tubes, each about two feet long and eighteen inches in diameter. In some cases there are as many as forty of these one upon another. They are held together by thin coats of bitumen, and in order to give them greater strength their sides are slightly concave. Their interiors are filled in with fragments of broken pottery, which gave considerable support while they in no way hindered the passage of the water. These potsherds are even placed around the outsides of the tubes, so that the ...
— A History of Art in Chaldaea & Assyria, v. 1 • Georges Perrot
... can be had by using a double concave lens. The picture is not reversed, but it is ...
— The Painter in Oil - A complete treatise on the principles and technique - necessary to the painting of pictures in oil colors • Daniel Burleigh Parkhurst
... rings, set with brilliants and precious stones. In the waistcoat pocket the top of a cigarette case was showing, and, when he pulled it out for a smoke, there was a big cluster of brilliants in the centre of the concave side. His walking-stick had a gold cross-head, and on the other side his initials were ...
— Golden Days for Boys and Girls, Vol. XIII, Nov. 28, 1891 • Various
... the top camber without a set of templates,[18] but a fairly accurate idea of the concave camber can be secured by slowly passing a straight-edge ...
— The Aeroplane Speaks - Fifth Edition • H. Barber
... keeping up all the time a sharp fire upon Wayne's position. Every now and then would come a frantic cry from some stricken horse as a random bullet took effect, but few struck among the men. The surgeon and the wounded were well sheltered in a concave hollow ...
— Marion's Faith. • Charles King
... search of coolness among the weedy stones at the bottom of the sea. Of all living creatures the jelly fish alone seemed to retain any spirit. Immense crowds of them drifted past the Tortoise, swelling out and closing again their concave bodies, revolving slowly round, dragging long purple tendrils deliriously through the warm water. They swept past Priscilla's drooping hands, touching them with their yielding bodies and brushing them softly with their tendrils. Now and then ...
— Priscilla's Spies 1912 • George A. Birmingham
... grow the fruit usually make their own chocolate at home by roasting the beans over a slow fire, and after separating them from their husks (like almond-skins), they pound them with wet sugar, etc., into a paste, using a kind of rolling-pin on a concave block of wood. The roasted beans should be made into chocolate at once, as by exposure to the air they lose flavour. Small quantities of cacao are sent to Spain, but the consumption in the Colony, when made into chocolate [142] ...
— The Philippine Islands • John Foreman
... or concave, according to the kind of sight requiring them. Old people, and those who can only see things at a distance, from the flatness of the eye, which prevents the rays of light converging so as to meet in the centre, ...
— A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery • Benziger Brothers |
