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Concentric   /kənsˈɛntrɪk/   Listen
Concentric

adjective
1.
Having a common center.  Synonyms: concentrical, homocentric.



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"Concentric" Quotes from Famous Books



... covered with a parqueted flooring of rare wood, forming concentric patterns. Against the walls stood glass ...
— The Hollow Needle • Maurice Leblanc

... a plummet SH from a point S, which must be rigidly fixed. The extremity H, where the plummet just meets the surface, should be somewhere near the middle of one end of the table. With H for centre, describe any number of concentric arcs of circles, AB, CD, ...
— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 - "Destructors" to "Diameter" • Various

... of three great concentric phases of life, and we are not without reason to suspect a fourth. If there are so many there are very likely more, but we do not know whether there are or not. The innermost sphere of life we know of is that of our own cells. These people live in a world of their ...
— God the Known and God the Unknown • Samuel Butler

... many of them of rare and beautiful workmanship. Halberds turn up less frequently, but swords are abundant, and are sometimes tastefully decorated with gold or ivory. Even the scabbards sometimes survive, while the shields, adorned with concentric rings or with knobs and bosses, would put to shame the rank and file of cheap modern metal work. Nay, the very trumpets which sounded the onset often lie buried by the warrior's side, and the bells which adorned his horse's neck bring back to ...
— Science in Arcady • Grant Allen

... the wind is still in our poop, and, as we carry a crowd of canvas, the ship is at times lifted bodily from out the sea—Oh, horror upon horror! the ice opens suddenly to the right, and to the left, and we are whirling dizzily, in immense concentric circles, round and round the borders of a gigantic amphitheatre, the summit of whose walls is lost in the darkness and the distance. But little time will be left me to ponder upon my destiny—the circles rapidly grow small—we ...
— The Works of Edgar Allan Poe - Volume 1 (of 5) of the Raven Edition • Edgar Allan Poe

... not checked out completely by the serviceman B. Flame pattern erratic (Not concentric). Burner set up by CO2 only (Burner should be set up by CO2, ...
— Installation and Operation Instructions For Custom Mark III CP Series Oil Fired Unit • Anonymous

... but had been abandoned by him for another treatment of the same theme, called "The Dolliver Romance." This last, of which two chapters appeared, was left unfinished at his death. Of "Septimius" I shall not attempt an analysis: it contains several related and concentric circles of meaning, to survey which would require too much space. The subject had been one of the earliest themes of meditation with Hawthorne, and he wrote as with a fountain-pen in which was locked the fluid thought ...
— A Study Of Hawthorne • George Parsons Lathrop

... symmetrical columns. The lower surface of the lava is vesicular, but sometimes only to the thickness of a few inches; the upper surface, which is likewise vesicular, is divided into balls, frequently as much as three feet in diameter, made up of concentric layers. The mass is composed of more than one stream; its total thickness being, on an average, about eighty feet: the lower portion has certainly flowed beneath the sea, and probably likewise the upper portion. The chief part of this lava has flowed from the central districts, ...
— Volcanic Islands • Charles Darwin

... the city which lay below on every side. From this canal four channels led the water through four quarters of the city to cascades which in their turn supplied another encircling canal at a lower level. There were three such canals forming concentric circles, the outermost and lowest of which was still above the level of the plain. A fourth canal at this lowest level, but on a rectangular plan, received the constantly flowing waters, and in its turn discharged them into ...
— The Story of Atlantis and the Lost Lemuria • W. Scott-Elliot

... wide-open mouth takes the place of the severed neck, and a handle connects the top of the rim with the back of the vessel. The handle being broken off and the vessel inverted, b, there is a decided change; we are struck by the resemblance to a frog or toad. The original legs, having dark concentric lines painted around them, look like large protruding eyes, and the mouth gapes in the most realistic manner, while the two short broken ends of the handle resemble legs and serve to support the vessel in an upright position, completing the illusion. The fetich-hunting ...
— Origin and Development of Form and Ornament in Ceramic Art. • William Henry Holmes

... books the treble price, when he might at first have had all three for the simple. But from whatsoever root or cause this restiveness of mind proceedeth, it is a thing most prejudicial; and nothing is more politic than to make the wheels of our mind concentric and voluble ...
— The Advancement of Learning • Francis Bacon

... very visibly receding more and more into the ancient city, so rapidly did the new town thicken on the other side of it. Thus, so far back as the fifteenth century, to come down no further, Paris had already worn out the three concentric circles of walls which, from the time of Julian the Apostate, lay in embryo, if I may be allowed the expression, in the Grand and Petit Chatelets. The mighty city had successively burst its four mural belts, like a growing boy bursting the garments made for ...
— The Best of the World's Classics, Restricted to Prose, Vol. VII (of X)—Continental Europe I • Various

... hundred and eighty feet in height. It would overtop the Houses of Parliament, and even the Great Pyramid of Egypt. The trunk at the surface of the ground was one hundred and twenty feet in circumference, and the concentric layers of the wood disclosed an age of more than ...
— Five Weeks in a Balloon • Jules Verne

... and awkwardly called, makes a sort of nucleus to Mr. Belloc's examination and impression of the world. If he knows Western Europe tolerably well, he knows this one county perfectly, and from it his explorations go out in concentric circles. He finds it, as he found with The Road, a solemn, a ritual, and a pleasurable task to ...
— Hilaire Belloc - The Man and His Work • C. Creighton Mandell

... boiling pool called the Sunlight Lake. On this I saw one of the most marvelous phenomena I have ever looked upon. The colors of this tiny sheet of water appeared not only in concentric circles, like the rings of a tree, but also in the order of the spectrum. The outer band was crimson, and then the unbroken sequence came: red, orange, yellow, green, blue, and violet in the centre! Moreover, the ...
— John L. Stoddard's Lectures, Vol. 10 (of 10) - Southern California; Grand Canon of the Colorado River; Yellowstone National Park • John L. Stoddard

... in concentric circles, level above level. Combat equipment nearest the tunnel exit and nearest the vertical shaft, and ambulances and decontamination units and equipment for relief and rebuilding next. Storerooms, mile on circular mile of them. Not the hasty packrat cramming he'd seen at Tenth Army; everything ...
— The Cosmic Computer • Henry Beam Piper

... of concentric layers with faint traces of a spiral structure at the centro-lateral nucleus, which is on the columellar side; from it there runs a strait rib or process continued nearly to the outer margin, and indicated externally ...
— Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2) • John MacGillivray

... Similarly the M[a]itri Upanishad (vi. 38) sketches salvation as follows: When a mortal no longer approves of wrath, and ponders the true wish, he penetrates the veil that encloses the Brahma, breaks through the concentric circles of sun, moon, fire, etc., that occupy the ether. Only then does he behold the supreme thing that is founded upon its own greatness only. And now the Ch[a]ndogya Upanishad (viii. 13) has the same idea, mentioning both ...
— Cerberus, The Dog of Hades - The History of an Idea • Maurice Bloomfield

... certainly does cover an immense space. Its population, though, is but half that of London. Its large area is due, perhaps, more to the manner in which it is laid out, than to anything else—which is in the form of concentric circles, the mikado's palace, or castle, occupying the centre. Around this dismal, feudal looking, royal abode, the various embassies are erected; buildings which present a far finer—because more modern and European—appearance than does the imperial residence. Circling the whole is a large ...
— In Eastern Seas - The Commission of H.M.S. 'Iron Duke,' flag-ship in China, 1878-83 • J. J. Smith

... exhibit the most remarkable arrangement of ridges is the Mare Humorum, in the south-eastern quadrant. Here, if it be observed under a rising sun, a number of these objects will be seen extending from the region north of the ring-mountain Vitello in long undulating lines, roughly concentric with the western border of the "sea," and gradually diminishing in altitude as they spread out, with many ramifications, to a distance of 200 miles or more towards the north. At this stage of illumination they are strikingly beautiful in a good telescope, reminding ...
— The Moon - A Full Description and Map of its Principal Physical Features • Thomas Gwyn Elger

... radical change. The ancient rugged tree of Netherland liberty—with its moss-grown trunk, gnarled branches, and deep-reaching roots—which had been slowly growing for ages, was still full of sap, and was to deposit for centuries longer its annual rings of consolidated and concentric strength. Though lopped of some luxuriant boughs, it was sound at the core, and destined for a still larger life than even in the healthiest moments of its ...
— The Rise of the Dutch Republic, 1555-1566 • John Lothrop Motley

... quarter of a century embraced between 1837 and 1861, a group of brilliant men resident in or about Cambridge and Boston, meeting frequently and intimately, and exerting upon one another a most stimulating influence. Some of the closer circles—all concentric to the university—of which this group was loosely composed were laughed at by outsiders as "Mutual Admiration Societies." Such was, for instance, the "Five of Clubs," whose members were Longfellow, Sumner, C. C. ...
— Brief History of English and American Literature • Henry A. Beers

... They are all the same, stamped by the eternal flux of nature. Beyond the solid ice-pack which surrounds the North Pole is a wide girdle of almost unbroken drift ice, and beyond this is an irregular concentric zone of scattered icebergs which varies in breadth with season, wind and local current; a persistent decrease in continuity from solid pack to open sea. The line of perpetual snow on high mountains advances or retreats from ...
— Influences of Geographic Environment - On the Basis of Ratzel's System of Anthropo-Geography • Ellen Churchill Semple

... had decided on making a vigorous direct attack over the carts. Dividing his troop into two portions, Diggle put himself at the head of the one, Sunman at the head of the other. Arranged in a semicircle concentric with the breastwork, at the word of command all the men with firearms discharged their pieces; then, with shrill cries from the natives, and a hoarse cheer from the crew of the Good Intent, they charged in a close line ...
— In Clive's Command - A Story of the Fight for India • Herbert Strang

... inches. This machine was constructed in accordance with suggestions given by Dr. Frank Schlesinger, Director of Allegheny Observatory. The ways are carefully straightened to within 0.002 millimeter. The carriage is moved by two racks and pinions and has a large handle on each side. Two concentric circles are fitted to the carriage, the inner circle carries the plate with the film in a fixed plane, no matter what the thickness of the glass may be. Both circles are provided with clamps and tangent screws, so ...
— Astronomical Instruments and Accessories • Wm. Gaertner & Co.

... uttered? And so with Milton. Dr. W. F. Warren has shown the nature of the material universe as pictured in Milton's "Paradise Lost." In passing from heaven to hell one would descend from an upper to a lower region of a sphere, passing through openings at the centers of other concentric spheres on the way down. Nothing more foreign to modern science can be imagined; yet we do not cast aside "Paradise Lost" because of the crudity of its view ...
— Understanding the Scriptures • Francis McConnell

... first arises from an instrument not being what it professes to be, which is error of workmanship. Thus if an axis or pivot, instead of being as it ought, exactly cylindrical, be slightly flattened or elliptical—if it be not exactly concentric with the circle which it carries—if this circle so called be in reality not exactly circular—or not in one plane—if its divisions, intended to be precisely equidistant, shall be in reality at unequal intervals—and a hundred other things of the ...
— Fables of Infidelity and Facts of Faith - Being an Examination of the Evidences of Infidelity • Robert Patterson

... which Francis had braced himself, she smiled at him in a very friendly fashion, and they went down together, admiring the wallpaper intensely on their way, for it consisted of fat scarlet birds sitting on concentric circles, and except for its age was almost exactly like some that Lucille and Marjorie hadn't bought because it was ...
— I've Married Marjorie • Margaret Widdemer

... year; sometimes fifteen or sixteen thousand sheep were kept thereon. About two miles from the town was a sheep-fold, near the margin of a pond, where the sheep could be washed. It was built of four or five concentric fences, which thus formed a sort of labyrinth, into which and through which the sheep and lambs were driven at shearing-time, and in it they were sorted out and placed in cotes or pens erected for each sheep-owner. ...
— Customs and Fashions in Old New England • Alice Morse Earle

... There are two concentric circles in which we all move, an inner or domestic circle, an outer or social circle. We are too often educating our women merely for the outer circle. We crowd the mind and memory with knowledge of all sorts, ...
— True to his Colours - The Life that Wears Best • Theodore P. Wilson

... first resolved itself into a series of strata resembling those of the electric discharge. After a little time, and through changes which it was difficult to follow, both clouds presented the appearance of a series of concentric funnels set one within the other, the interior ones being seen through the outer ones. Those of the distant cloud resembled claret-glasses in shape. As many as six funnels were thus concentrically set together, the two series being united by the ...
— Fragments of science, V. 1-2 • John Tyndall

... funny fancies, and our yellow headlights, wavering in concentric arcs with each turn of the course, almost seem to glint on the helmets and shields of the spear-bearing legionaries that marched that very way to force a southern culture on the Gauls. We slow down to pass through the rock-hewn gate that once was ...
— "And they thought we wouldn't fight" • Floyd Gibbons

... spread out with inconceivable swiftness. No rule could be traced in the movement of the light parcels which are called the "merry dancers." The sun and moon were often surrounded with haloes and concentric circles of vapour, tinted with the brightest hues of the rainbow. Parhelia, or mock suns, frequently shone in different quarters of the firmament. Still the life the explorers were compelled to lead was becoming very monotonous, when, on the morning of the ist of ...
— Notable Voyagers - From Columbus to Nordenskiold • W.H.G. Kingston and Henry Frith

... formed for an attack in arcs of concentric circles, their heavy iron-clads going in very close range, being nearest the shore, and leaving intervals or spaces so that the outer vessels could fire between them. Porter was thus enabled to throw one hundred and fifteen shells per ...
— Memoirs of Three Civil War Generals, Complete • U. S. Grant, W. T. Sherman, P. H. Sheridan

... a pool of water sets in motion a series of concentric circles which disturb the whole mass in varying degree, so Mrs. Ochiltree's enigmatical remark had started in her niece's mind a disturbing train of thought. Had her words, Mrs. Carteret asked herself, any serious meaning, or were they the ...
— The Marrow of Tradition • Charles W. Chesnutt

... barrels should be filled uniformly from bottom to top with an even grade of fruit. No reputable packer will attempt any fraud upon the purchaser in this respect. In tailing off the barrel preparatory to putting in the head, the better way is to face the apples on their side in concentric rings with the color side of the apple up. I would not select these apples as to size or color, but let them correctly represent both as they run through the barrel. There can be no objection, however, to your putting ...
— Trees, Fruits and Flowers of Minnesota, 1916 • Various

... Examine under the microscope a bit of the above white deposit. Note that each starch granule shows an eccentric hilum with concentric markings. Add a few drops of very dilute solution of iodine. Each granule becomes blue, while the markings ...
— A Practical Physiology • Albert F. Blaisdell

... the shadow of my body intercepted. It resembled, very exactly, what in pictures is termed a glory, around the head of our Saviour and of saints: not, indeed, that luminous radiance which is painted close to the head, but an arch of concentric colours. As I walked forward, this glory approached or retired, just as the inequality of the ground shortened or ...
— Notes and Queries, No. 181, April 16, 1853 • Various

... tools. They are made in sets of arcs of concentric circles (see fig. 80, A). The portion of the curves cut off by the dotted line C will make a second set with flatter curves. Gouges are used ...
— Bookbinding, and the Care of Books - A handbook for Amateurs, Bookbinders & Librarians • Douglas Cockerell

... specimens of a shell agreeing with the short specific character given by Lamarck of the above; but as it has not been figured, I have referred to it with a mark of doubt. The shells are rather solid, white, or white variegated with purple, with numerous concentric wrinkles, which are more distinct nearer the margin; the umbones, covered with a thin pale periostraca, nearly smooth and polished, with a small purple spot, the inside white, with the disk and posterior slope purple; the anterior and posterior slopes distinct, the lunule and ...
— Narrative of a Survey of the Intertropical and Western Coasts of Australia] [Volume 2 of 2] • Phillip Parker King

... during every apparent revolution round the earth, come to rest twice, and in the shorter interval between these "stationary points," move in the opposite direction, found that he could represent the phenomena fairly well by a system of concentric spheres, each rotating with its own velocity, and carrying its own particular planet round its own equator, the outermost sphere carrying the fixed stars. It was necessary to assume that the axes about which the various spheres revolved should have circular motions also, and gradually an increased ...
— Kepler • Walter W. Bryant

... overlaid with a coat of red or yellow ochre, and on this coloured background a number of designs were traced, one after the other, by a series of white dots, which together made up a pattern of curved lines and concentric circles. These patterns represented the Wollunqua and some of his traditionary adventures. The snake himself was portrayed by a broad wavy band, but all the other designs were purely conventional; for example, trees, ant-hills, and wells were alike indicated by circles. ...
— The Belief in Immortality and the Worship of the Dead, Volume I (of 3) • Sir James George Frazer

... machinery whereby the lights were revolved. Fresnel therefore adopted the ingenious device proposed by Condorcet, that of constructing a lens of a number of distinct pieces. This method was also proposed by Dr. Brewster, in 1811. Fresnel also invented a lamp, with a number of concentric wicks, the lustre of which was twenty-five times greater than ...
— Smeaton and Lighthouses - A Popular Biography, with an Historical Introduction and Sequel • John Smeaton

... interesting of the pictographs pecked in the rock is a figure which, variously modified, is a common decoration on cliff-dweller pottery from the Verde valley region to the ruins of the San Juan and its tributaries. This figure has the form of two concentric spirals, the ends of which do not join. As this design assumes many modifications, it may be well to consider a few forms which it assumes on the pottery of the cliff people and on that of their descendants, ...
— Archeological Expedition to Arizona in 1895 • Jesse Walter Fewkes

... the middle, and 90 at the top.... The emperor, with his immediate suite, kneels in front of the tablet of Shang-ti (The Supreme Being, or Heaven), and faces the north. The platform is laid with marble stones, forming nine concentric circles; the inner circle consists of nine stones, cut so as to fit with close edges round the central stone, which is a perfect circle. Here the emperor kneels, and is surrounded first by the circles of the terraces and their enclosing walls, and then by the ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 - "Chicago, University of" to "Chiton" • Various

... dual nature of Saturn's ring, having perceived that instead of one there are two concentric rings separated by a dark space. He also discovered four of the planet's satellites—viz. Japetus, Rhea, Dione, and Tethys. He made a near approximation to the solar parallax by means of researches on the parallax ...
— The Astronomy of Milton's 'Paradise Lost' • Thomas Orchard

... therefore, be easily drained and cultivated. To the south-west of this basin, and to the right of the road to San Pablo, lies the [Tigui-mere.] Tigui-mere. From a plain of whitish-grey soil, covered with concentric shells as large as a nut, rises a circular embankment with gently-sloping sides, intersected only by a small cleft which serves as an entrance, and which shows, on its edges denuded of vegetation, the loose rapilli of which the embankment is formed. The sides of this natural amphitheatre ...
— The Former Philippines thru Foreign Eyes • Fedor Jagor; Tomas de Comyn; Chas. Wilkes; Rudolf Virchow.

... rococo style which Rastrelli so persistently served up at the close of the eighteenth century, is that of the Counts Stroganoff, at the lower quay of the Moika. The Moika (literally, Washing) River is the last of the semicircular, concentric canals which intersect the Nevsky and its two radiating companion Prospekts, and impart to that portion of the city which is situated on the (comparative) mainland a resemblance to an outspread fan, whose palm-piece is formed by the Admiralty ...
— Russian Rambles • Isabel F. Hapgood

... desirability of an alliance with one of their tribe, approached me softly and rubbed my back in a circle the while she crooned a broken song of the whaling days, concerning the "rolling Mississippi" and the "Black Ball line." Seventh Man Who Wallows in the Mire himself began to make concentric circles on my breast with his heavy hand, so that I was beset fore and aft by the most tender and friendly advances of the Marquesan race. Never was hapless guest in ...
— White Shadows in the South Seas • Frederick O'Brien

... hedge to the premier seraph wearing the coronet of his sublime companionship; from the lowest forms of vegetable existence to the loftiest reaches of moral nature this side of the Infinite, this everlasting law of co-working rules the ratio of progress and development. In all the concentric spheres strung on the radius measured by these extremes, there is the same co-acting of internal and external forces. And mind, of man or angel, guides and governs both. Not a flower that ever breathed on earth, not one that ever ...
— A Walk from London to John O'Groat's • Elihu Burritt

... adapted to give the reader a clear conception of the present condition and future prospects of this gigantic empire. The path she has trod, since her first emergence into civilization from the chaos of barbarism, can be very distinctly traced, and one can easily count the concentric accretions of her growth. This narrative reveals the mistakes which have overwhelmed her with woe, and the wisdom which has, at times, secured for Russia peace ...
— The Empire of Russia • John S. C. Abbott

... copper to the circular form and size just mentioned, and file the edge so that it will be smooth and free from sharp places. With a pencil compass put on a series of concentric rings about 1/2 in. apart. These are to aid the eye in ...
— The Boy Mechanic: Volume 1 - 700 Things For Boys To Do • Popular Mechanics

... disfigured than some of its fellows, I perceived four tiny ivory spheres, a dozen of which might rest comfortably within the length of an inch. To my eye they looked quite smooth, although a steady oblique gaze revealed hints of concentric lines. Before the times of Leeuwenhoek I should perhaps have been unable to see more than this, although, as a matter of fact, in those happy-go-lucky days my ancestors would doubtless have trounced me ...
— Edge of the Jungle • William Beebe

... would bob up from its pastures below, and catching sight of the sail, with a bubbling gulp, disappear, the white splash creating concentric rings of ripples. But the breeze came not, and the disorderly procession of butterflies, ...
— The Confessions of a Beachcomber • E J Banfield

... with the roots of the other buds, and form the bark, which is the only living part of the stem, is annually renewed, and is superinduced upon the former bark, which then dies, and with its stagnated juices gradually hardening into wood forms the concentric circles, which we see in blocks ...
— Zoonomia, Vol. I - Or, the Laws of Organic Life • Erasmus Darwin

... from the growth of timber in the very beds of these excavations, that they claim an antiquity greater far than the occupation of their valleys by the French. Year after year, a silent, solemn record was made by the concentric circles, first in the shrub, next in the sapling, and then in the fully developed tree, that tells of the lapse of time since these ...
— Continental Monthly, Vol. 5, Issue 2, February, 1864 • Various

... of a bivalve shell are like thin saucers, concave inside, convex outside. The inside is smooth, polished. The outside is rougher, sometimes with graceful ribs or concentric ridges or combinations of both. Univalves are conical and spiraling, with a series of whorls coming down like widening steps from the tiny nucleus on top. Univalves may have spines on their shoulders. The opening, called the aperture, has a delicate ...
— Let's collect rocks & shells • Shell Oil Company

... Some of these cells at an early stage encased themselves by secreting a hardened membrane; they formed the first vegetable cells, while others remaining naked developed into the first aggregate of animal cells. The vegetable cell has usually two concentric coverings—cell-wall and primordial utricle. In animal cells the former is wanting, the membrane representing the utricle. As a general fact, also, animal cells are smaller than vegetable cells. Their size[6] varies greatly, but are generally invisible to the naked eye, ranging from 1/500 ...
— Was Man Created? • Henry A. Mott

... the first she knew none but the right people: and though, as her circle widened, it included names of higher and yet higher lustre, yet (if I may press a somewhat confused metaphor) its rings were concentric and hardly distinct. She never, I believe, was forced to drop an old acquaintance because she had found a new one. The just estimate of our Western manners which you, my dear Prince, formed at Balliol, will enable you to grasp the singularity of such a triumph. ...
— The Delectable Duchy • Arthur Thomas Quiller-Couch

... fitting scuppers so that the whole can be enlarged by a movable concentric ring, in order that a surcharge of water can be freely delivered; invented by ...
— The Sailor's Word-Book • William Henry Smyth

... the wheel, and they may be moved upon the points of the spurs, to which they are attached by pins, by means of short levers proceeding from the backs of the floats, and connected to rods which proceed towards the centre of the wheel. The centre, however, to which these rods proceed is not concentric with the wheel, and the rods, therefore, are moved in and out as the wheel revolves, and impart a corresponding motion to the floats. In some feathering wheels the proper motion is given to the rods by means of an eccentric ...
— A Catechism of the Steam Engine • John Bourne

... every time a dwelling-house door opened and shut as we passed, disclosing a glimpse of human heads and backs and shoulders—for we so longed to have a good satisfying look at a Mormon family in all its comprehensive ampleness, disposed in the customary concentric rings ...
— Innocents abroad • Mark Twain

... the active exertion of an exercise should determine the amount of the reaction. We should go as slowly in the recoil or eccentric contraction as we do in the concentric contraction. ...
— How to Add Ten Years to your Life and to Double Its Satisfactions • S. S. Curry

... crust have been bent up in the form of a great dome. The dome structure, to be sure, has now been largely destroyed, for erosion has long been active. The result is that the harder strata form a series of concentric ridges, while between them are ring-shaped valleys, one of which is so level and unbroken that it is known to the Indians as the "race-course." In other parts of the cordillera great masses of rock have been pushed horizontally ...
— The Red Man's Continent - A Chronicle of Aboriginal America, Volume 1 In The - Chronicles Of America Series • Ellsworth Huntington

... of eruption is made up of several concentric rings. Difference of duration of the individual rings, usually slight, tends to give the patch variegated coloration; as, for example, in erythema iris and ...
— Essentials of Diseases of the Skin • Henry Weightman Stelwagon

... migrate from more settled areas. Furthermore, the English migrants often came from outside the Province of Pennsylvania, either from New Jersey or New York. In fact, if one were to construct a pattern of concentric zones, with the core in the southeastern corner of the Province and the lines radiating in a north-westerly direction, the English would be found at the core, the Germans in the next zone, and the Scotch-Irish in the outlying ...
— The Fair Play Settlers of the West Branch Valley, 1769-1784 - A Study of Frontier Ethnography • George D. Wolf

... then the law of love has increased force. If that point of sympathy lies at the centre of the being of each, and if these centres are brought into contact, then the circles of their being will be, if not coincident, yet concentric. We must wait patiently for the completion of God's great harmony, and meantime love everywhere ...
— A Dish Of Orts • George MacDonald

... matrix in a little bed, the lacuna, and communicating one with another by fine processes through canaliculi in the matrix, which processes are only to be seen clearly in decalcified bone (See Section 70). The osteoblasts are arranged in concentric series, and the matrix is therefore in concentric layers, or lamellae (c.l.). Without and within the zone of Haversian systems are (o.l. and i.l.), the outer and inner lamellae. The bone is surrounded ...
— Text Book of Biology, Part 1: Vertebrata • H. G. Wells

... the automobile Kennedy placed a peculiar oblong box, swung on two concentric rings balanced on pivots, like a most ...
— The Poisoned Pen • Arthur B. Reeve

... always shown throughout its career, its daring and brilliant qualities. Foote, the commodore, although he had had no time to repair his four small fighting boats after the encounter with Fort Henry, steamed straight up the river and engaged the concentric fire from the great guns of the Southern batteries, which opened upon him with a tremendous crash. The boys watched the duel with amazement. They did not believe that small vessels could live under such fire, but live they did. Great ...
— The Guns of Shiloh • Joseph A. Altsheler

... on the needle implies a magnetic action, and if we dust iron filings around the wire we shall find they cling to it in concentric layers, showing that circular lines of magnetic force enclose it like the water waves caused by a stone dropped into a pond. Figure 31 represents the section of a wire carrying a current, with the iron filings arranged in circles round it. Since a magnetic pole tends to move in the direction ...
— The Story Of Electricity • John Munro

... heat, making their wings hum in circles around my head. So loud became their humming about three o'clock that I looked up from the document I was reading—a document containing very precious materials for the history of Melun in the thirteenth century—to watch the concentric movements of those tiny creatures. "Bestions," Lafontaine calls them: he found this form of the word in the old popular speech, whence also the term, tapisserie-a-bestions, applied to figured tapestry. I was compelled to confess that the ...
— The Crime of Sylvestre Bonnard • Anatole France

... by sawing off the end of a large spool and sticking a match or small stick through the hole in the centre. Four concentric circles are drawn upon a sheet of paper which should be about twelve inches square. Inside of the smallest circle, which should have a diameter of 2 inches, the number 20 is placed. The next circle outside of this one, having a diameter 2 inches greater, ...
— School, Church, and Home Games • George O. Draper

... at p. The gaseous mixture enters through the tube, n, traverses the apparatus, p, and enters the vessel, B, through the tubes, g and D. Fig. 2 gives the details of the oxidizing apparatus, which consists of two concentric glass tubes, A and F, soldered at x. A is closed beneath and held in a cylinder, C; F contains a small aperture through which passes a tube, E. The gaseous mixture enters through the latter, traverses the annular space between the tubes, A and F, and then makes ...
— Scientific American Supplement, No. 492, June 6, 1885 • Various

... examine the figure produced by the field of force surrounding a conductor through which a current of electricity is being transmitted (see Fig. 1), we see that iron filings within that field arrange themselves in more or less concentric circles around the conductor conveying the current. From this fact Professor Bjerknes and his son, reasoning that, to produce a similar field of energy around a vibrating body, the vibrations of that ...
— Scientific American Supplement, No. 488, May 9, 1885 • Various

... ring, about a digit or perhaps a tenth part of the moon's diameter in breadth. It was of a pale whiteness, or rather pearl colour, seeming to be a little tinged with the colours of the iris, and to be concentric with the moon, whence I concluded it the moon's atmosphere. But the great height thereof, far exceeding our earth's atmosphere, and the observation of some, who found the breadth of the ring to increase on the west side of the moon as emersion approached, together with ...
— A Popular History of Astronomy During the Nineteenth Century - Fourth Edition • Agnes M. (Agnes Mary) Clerke

... adopted their small needle from any knowledge either of the variation, or of the inclination of the magnetic needle. Although the needle be invariably small, yet it sometimes happens that the margin of the box is extended to such a size, as to contain from twenty to thirty concentric circles, containing various characters of the language, constituting a compendium of their astronomical (perhaps more properly speaking) astrological knowledge. As numbers of such compasses are in the museums of Europe, it may not perhaps be wholly unacceptable to ...
— 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

... been partly wasted away by the sea, and its structure exposed to view. It contains a central cylindrical nucleus of unknown length (but certainly considerable), round which six beds of clay slate are wrapt, the one within the other, so as to form six concentric cylinders. Now, however plastic the clay slate may have been, there is no kind of pressure which will account for this structure; the central cylinder would have required to have been rolled six times in ...
— Modern Painters, Volume IV (of V) • John Ruskin

... which I live upon has been put on this dish by the spirit. [Ki/tshi Man/id[-o] provides the speaker with the necessary food for the maintenance of life. The dish, or feast, is shown by the concentric rings, the spirit's arm is ...
— The Mide'wiwin or "Grand Medicine Society" of the Ojibwa • Walter James Hoffman

... zenith, that could be made with the naked eye; for when the sun's centre was upon the zenith, his disc would be seen by reflection on the water, in the very middle of the well,—that is, as a circle perfectly concentric with the circle of the water; and, I believe, there is nothing of which the naked eye can judge with so much precision as the concentricity of two circles, provided the circles be neither very nearly equal, ...
— Robert Kerr's General History and Collection of Voyages and Travels, Volume 18 • William Stevenson

... divides the private ground of the copse from Otterbourne Common and Hill, which is crossed by the old high road from London to Southampton, the very steep hill having had a cutting made through it. The Cranbury side of the road has the village cricket ground on it, though burrowed under by the concentric brick-work circles of the Southampton Company's water works, which are entered by a little staircase tower, cemented over so as to be rather ornamental than otherwise. Beside it, there is a beautiful view of a delightful home landscape; stretching ...
— John Keble's Parishes • Charlotte M Yonge

... movement, by which all the scattered commandos in this part of the Free State were to be driven into the mountains on the Basuto border and there surrounded. Paget's brigade (the 20th) was part of the cordon, which was gradually drawn closer by the concentric marches of columns under him, and General Clements, Rundle, Boyes, Bruce Hamilton, and Hunter himself. The climax was the surrender of about 5000 Boers under Prinsloo at Fouriesberg on July 29, a success much impaired by the escape of De Wet from the fast-closing ...
— In the Ranks of the C.I.V. • Erskine Childers

... flat disc about four feet in diameter made from straw and covered with an oilcloth or white sheet painted in concentric rings of gold, red, blue, black and white, each color of which, when penetrated by the arrow counts so many points in the aim. The gold is the objective point of the archer, the "bull's eye," as it is called. Three arrows are shot ...
— Entertainments for Home, Church and School • Frederica Seeger

... Lymphocytes. These are small cells, as a rule approximating in size to the red blood corpuscles. Their body is occupied by a large round homogeneously stained nucleus centrally situated, whilst the protoplasm surrounds the nucleus as a concentric border. Between nucleus and protoplasm there is often found a narrow areola, which doubtless results from artificial retraction. Nucleus and protoplasm are basophil, nevertheless in many methods of staining the protoplasm possesses a much stronger affinity for the basic stain than does the ...
— Histology of the Blood - Normal and Pathological • Paul Ehrlich

... shells, which is not the case with any AVICULAE I am acquainted with; and the young pearl-shells are furnished with a broad serrated distant leafy fringe, while the AVICULAE are only covered with very closely applied short concentric slightly raised minutely denticulated lamina, forming an epidermal coat ...
— Journals Of Expeditions Of Discovery Into Central • Edward John Eyre

... a frame, is about twenty by twenty-four inches, and each of the three figures in the group close below is about eighteen inches high. Some of the drawings evidently represent the deified dragon-fly found almost everywhere among the ruins of Arizona and Northern Mexico. There are also the concentric circles, the conventionalised spiral, and the meander design, so common among the North American Indians, and still in use among ...
— Unknown Mexico, Volume 1 (of 2) • Carl Lumholtz

... English observers, William and Thomas Ball, which enhanced the mystery. Observing the northern face of the ring, which was at that time turned earthwards, they perceived a black stripe of considerable breadth dividing the ring into two concentric portions. The discovery did not attract so much attention as it deserved, insomuch that when Cassini, ten years later, announced the discovery of a corresponding dark division on the southern surface, none recalled the observation made by the brothers Ball. Cassini expressed the opinion that ...
— Myths and Marvels of Astronomy • Richard A. Proctor

... length of a complete year; and in the second place, in determining the motions both of these and of the five other planets, they fail to employ consistently one set of first principles and hypotheses, but use methods of proof based only upon the apparent revolutions and motions. For some employ concentric circles only; others, eccentric circles and epicycles; and even by these means they do not completely attain the desired end. For, although those who have depended upon concentric circles have shown that certain diverse motions can be deduced from these, yet they have not succeeded thereby in ...
— Prefaces and Prologues to Famous Books - with Introductions, Notes and Illustrations • Charles W. Eliot

... Among these concentric energies, Margaret and Miss Penny completed their own simple preparations, and Graeme busied himself with the details of the children's feast which was to take place ...
— Pearl of Pearl Island • John Oxenham

... sing, myself, and I know what Christopher meant when he said that the sound did not come out of the instrument, but that it came in to it, sweeping home from all the walls and corners of the chamber, a slow, rich, concentric wind of tone. He felt it about him, murmurous, pulsating, like the sound of surf borne from ...
— O Henry Memorial Award Prize Stories of 1919 • Various

... earliest and most enduring works of man in the British Islands is to be seen in the circles of giant stones on Salisbury Plain. They stand in two concentric circles. The outer ring of monoliths encloses an inner one of blue stones about half their height. These in turn surround a horseshoe formation consisting of the remains of five great trilithons. Some of these stones have fallen across the flat one known as the altar stone, occupying a ...
— What to See in England • Gordon Home

... programme worked out; in the meantime, von Schlichten could only be patient and contain himself. He looked along the table, and caught sight of a thin-faced, saturnine-looking man in a green shirt, with a colonel's three concentric circles marked on the shoulders in silver-paint. Emmett Pearson, the ...
— Uller Uprising • Henry Beam Piper, John D. Clark and John F. Carr

... graves. It is evident that the mounds were not constructed at one time, but the whole collection of graves therein was made during long periods by the addition of a new grave from time to time. In the first burials found at the bottom and near the center of a mound a tendency to a concentric system, with the feet inward, is observed, and additions are made around and above these first concentric graves, as the mound increases in size the burials ...
— An introduction to the mortuary customs of the North American Indians • H. C. Yarrow

... there long remained the vestiges of an ascending series of groups out of which the State was at first constituted. The Family, House, and Tribe of the Romans may be taken as the type of them, and they are so described to us that we can scarcely help conceiving them as a system of concentric circles which have gradually expanded from the same point. The elementary group is the Family, connected by common subjection to the highest male ascendant. The aggregation of Families forms the Gens or House. The ...
— Ancient Law - Its Connection to the History of Early Society • Sir Henry James Sumner Maine

... at that time in the habit of visiting both Lake Superior and Hudson's Bay for the purpose of trade. They were then extensive nations and no trace of a nation which preceded them was got from them. The fallen tree on the top of the grand mound, judging by the concentric rings of its trunk is 150 or 200 years old, and yet its stump stands in a foot or more of mould that must have taken longer than that time to form. Even among savage nations it would take upwards of half ...
— The Mound Builders • George Bryce

... latter, which is nearly globular, divides into eight nearly similar cells by walls passing through the centre. In each of these eight cells two walls are next formed parallel to the outer surface, so that the antheridium (apart from the basal cell) contains twenty-four cells arranged in three concentric series (G, an.). These cells, especially the outer ones, develop a great amount of a red pigment, giving the antheridium its ...
— Elements of Structural and Systematic Botany - For High Schools and Elementary College Courses • Douglas Houghton Campbell

... a dot in the centre of the disc, and from the dot drew straight lines that radiated in different directions. Then he drew a number of concentric circles about ...
— The Secret Wireless - or, The Spy Hunt of the Camp Brady Patrol • Lewis E. Theiss

... with which he added, that there the forensic orator paused while several gentlemen of the jury "took a note of the document," one of that intelligent body inquiring, "There is no date to that, is there, sir?" made fresh ripples of laughter spread from it as inevitably as the concentric circles on water from the dropping of a pebble. The crowning extravagances of this most Gargantuan of comic orations were always of course the most eagerly welcomed, such, for example, as the learned Serjeant's final allusion to Pickwick's coming before the court that day with "his ...
— Charles Dickens as a Reader • Charles Kent

... a dozen places were signs old Indian trailers read as they would read an open book. Places where, pivoting on the heel, a heavy foot had crushed right and left into the yielding soil of the roadway, making concentric, circular grooves and ridges of sandy earth, where, earlier in the morning Dan's and Harney's dainty hoof prints were the only new impressions. For nearly fifty yards had this obliterating process been ...
— A Daughter of the Sioux - A Tale of the Indian frontier • Charles King

... registered on a diagram. The average limit of the normal field of vision is 90 mm. on the temporal side, 55 mm. on the nasal side, 55 mm. above and 60 mm. below (see Fig. 42). If a suitable instrument is not available, a series of concentric circles may be traced on a slate and the patient placed at a certain distance with one eye covered. The examiner then touches the different points of the circles with his hand and asks the patient whether he can see it when his eye is fixed on the central point. In this way the various points ...
— Criminal Man - According to the Classification of Cesare Lombroso • Gina Lombroso-Ferrero

... scissors, wash it in a drop of water and place it on the object slide. The mouth now stands revealed as a round spot which, for hue and for the smallness of its size, may be compared with the front stigmata. It is a small conical crater, with sides of a pale yellowish-red and with faint, more or less concentric lines. At the bottom of this funnel is the opening of the gullet, itself tinted red in front and promptly spreading into a cone at the back. There is not the slightest trace of mandibular fangs, of jaws, of mouth parts for seizing and grinding. Everything is reduced to the bowl shaped ...
— The Life of the Fly - With Which are Interspersed Some Chapters of Autobiography • J. Henri Fabre

... from the mistakes of the other. But nowhere does the machine disappear. Nowhere is the idyllic theory of democracy realized. Certainly not in trades unions, nor in socialist parties, nor in communist governments. There is an inner circle, surrounded by concentric circles which fade out gradually into the disinterested or uninterested rank ...
— Public Opinion • Walter Lippmann

... leaves being frequently from twelve to fifteen feet in length. In some species the foliage is of a dark green and shining surface, like that of a laurel or holly; in others, silvery on the under-side, as in the willow; and there is one species of palm with a fan-shaped leaf, adorned with concentric blue and yellow rings, like the "eyes" of a ...
— The Illustrated London Reading Book • Various

... members of an all-embracing organism, and there may be intermediate will-centres between our own and that of the universal Ego. Among modern systems, that of Fechner is the one which seems to be most in accordance with these speculations. He views life under the figure of a number of concentric circles of consciousness, within an all-embracing circle which represents the consciousness ...
— Christian Mysticism • William Ralph Inge

... burn certain little grains thrown on to it." It was then adjusted to the stake, and struck with the hammer, towards the centre, until by degrees it began to take convex form. Then, keeping the central point always in view by means of compasses, from that point he struck "a series of concentric circles about half a finger apart from each other," and with a hammer, beginning at the centre, struck so that the "movement of the hammer shall be in the form of a spiral, and follow the concentric circles." It was important to keep the form very even ...
— Arts and Crafts in the Middle Ages • Julia De Wolf Addison

... arc, and dives into the wall of Mont Victoire, about half way through the plain. On the southern side of the river are low hills; at the extreme north-east is a conical green hill named Pain de Munition, which is fortified much like the Hereford Beacon, with walls in concentric rings. To the south-east is the chain of Mont Aurelien, and there, on the Mont Olympe, is another fortified position, beneath which is the town of Trets, an ancient ...
— In Troubadour-Land - A Ramble in Provence and Languedoc • S. Baring-Gould

... the country, it was built by "Les moines rouges," as they style the Templar Knights. The road was incessantly up and down hill, as we afterwards found they are throughout Brittany; a "pays accidente" it may be truly called. The chapel of Lanleff is composed of two concentric circular enclosures separated by twelve round arches, with cushion-shaped capitals, having heads, human and animal, rudely sculptured upon them at the four angles. Its whole diameter is about twenty-two feet. It was probably ...
— Brittany & Its Byways • Fanny Bury Palliser

... the genius of that man's country, sir," answered Rashleigh;—"discretion, prudence, and foresight, are their leading qualities; these are only modified by a narrow-spirited, but yet ardent patriotism, which forms as it were the outmost of the concentric bulwarks with which a Scotchman fortifies himself against all the attacks of a generous philanthropical principle. Surmount this mound, you find an inner and still dearer barrier—the love of his ...
— Rob Roy, Complete, Illustrated • Sir Walter Scott

... was applied in Tenochtitlan to a building sacred to the Nine Winds.[51] To explain the introduction of this number, I should add that a certain school of Nahuatl priests taught that the heaven above and the earth below were each divided into nine concentric arcs, each leading farther and farther away from the conditions of the present life. Hence, there were nine heavens, abodes of the gods, and nine lower regions, abodes of the souls of the dead. Another school taught that there were not nine but thirteen ...
— Ancient Nahuatl Poetry - Brinton's Library of Aboriginal American Literature Number VII. • Daniel G. Brinton

... something behind the phenomena, like Kant's noumenon,—too fine to exist, yet unable to dispense with existence, and so, after all, not spirit, but only a superfine kind of matter; or as in a picture in the Campo Santo at Pisa, where the world is figured as a series of concentric circles, held up like a shield by ...
— The Atlantic Monthly, Volume 13, No. 77, March, 1864 • Various

... semi-materialist, and though no man better managed the logic of substance and accidents, he seems to have formed no clear metaphysical notion of their actual meaning. Taken notionally, they are mere interchangeable relations, as in concentric circles the outmost circumference is the substance, the other circles its accidents; but if I begin with the second and exclude the first from my thoughts, then this is substance and the interior ...
— The Literary Remains Of Samuel Taylor Coleridge • Edited By Henry Nelson Coleridge

... former attack, horrible faces glared upon me from the walls—faces ever changing, and displaying new and still more horrible features; black bloated insects crawled over my face, and myriads of burning, concentric rings were revolving incessantly. At one moment the chamber appeared as red as blood, and in a twinkling it was dark as the charnel house. I seemed to have a knife with hundreds of blades in my hand, every blade driven through the flesh, and all so inextricably bent and tangled together that I could ...
— Stories of Achievement, Volume III (of 6) - Orators and Reformers • Various

... nook among the hills, is the hospital of St. Mandrier, with 1200 beds, one of the most important establishments of this kind in France. It occupies three sides of a parallelogram, has a handsome chapel, and a great cistern vaulted with concentric circles. Adjoining is a large and well-sheltered garden with orange trees. Visitors are readily admitted. In Toulon, near the Place d'Armes, is the Hpital de la Marine, exclusively for the navy. Although well ordered, it ...
— The South of France—East Half • Charles Bertram Black

... were tattooed three parallel lines of color, and on each breast three concentric circles. Their yellow teeth were filed to sharp points, and their great protruding lips added still further to the low and bestial brutishness ...
— Tarzan of the Apes • Edgar Rice Burroughs

... perceived that Saturn appeared to be triple, and excited the curiosity of astronomers by the publication of his first "Enigma,"—Altissimam planetam tergeminam observavi. He could not then perceive the rings; the planet seemed through his telescope to have the form of three concentric O's. Soon after, in examining Venus, he saw her in the form of a crescent: Cynthioe figuras oemulatur mater amorum,—"Venus rivals the phases of ...
— Beacon Lights of History, Volume VI • John Lord

... exercises that which must be considered the most important is that of the "line." A line is described in chalk or paint upon a large space of floor. Instead of one line, there may also be two concentric lines, elliptical in form. The children are taught to walk upon these lines like tight-rope walkers, placing their feet one in front of the other. To keep their balance they make efforts exactly similar to those of real tight-rope walkers, ...
— Dr. Montessori's Own Handbook • Maria Montessori

... that these buildings were in many cases carefully planned and built fortifications. At Niekerk, for instance, nine or ten hills are fortified on concentric walls thirty to fifty feet in number, with a place for the village at the top. The buildings are forts, miniature citadels, and also workshops and cattle kraals. Iron implements and handsome pottery were found here, and close to the Zambesi ...
— The Negro • W.E.B. Du Bois

... margin when grown slightly marked with lines; flesh white, yellow under the cuticle. Stem white, sometimes yellowish, 2 inches long, torn into scales, at first stuffed, then hollow; the attached base of the volva forms an oval-shaped bulb, which is bordered with concentric scales, that is, having a common centre, as a series of rings one within the other. Ring very soft, torn, even, inserted at the apex of the stem, which is often dilated. Gills free but reaching the stem, decurrent, in the form of lines, crowded, broader in front, white, rarely becoming yellow. ...
— Among the Mushrooms - A Guide For Beginners • Ellen M. Dallas and Caroline A. Burgin

... leaves, or other cut-out designs, and arrange them over the covering and moisten the under sides with water, to make them adhere during the baking. Place long strips of the dough over the brim of the pie-dish, and press with the bowl of a spoon in concentric designs. Bake in a moderate oven for an hour. Pieces of the crust are cut off for serving, and spoonfuls of the apple pulp are served with them on the plate, then, as soon as convenient the inverted cup is removed, and the rich liquid collected ...
— American Cookery - November, 1921 • Various

... livelihood, all dancing, drinking, eating, laughing, jesting, smoking, primitively love-making, moving, shouting, a phantasmagoria of souls making merry beyond the pale of reputable life; such were the frequenters of the Bal Jasmin. Gas flared in two concentric circles of flame around the hall and around the central bandstand. There was no ventilation. The bal sweltered in perspiration. Hollow-voiced abjects hawked penny paper fans between the dances, and the whole ...
— The Beloved Vagabond • William J. Locke

... carried on to a great extent in Sheffield. Above five gross per day are ground of convex and concave glasses in one shop. Concave basins cast in iron of the radii of curvature of proposed lenses are fixed in rows on a frame, and rubbed with water and emery. A concentric convex basin is then covered with round pieces of plate glass fixed with pitch; and the convex stir face, with its glass pieces, is then turned and wabbled in the concave basin by steam power. In this manner from six to twelve dozen glasses are ground at once by one basin working ...
— The Mirror of Literature, Amusement, and Instruction, Vol. 14, - Issue 404, December 12, 1829 • Various

... Corolla very large, yellow. Stamens very numerous, inserted around a column. One pistil. Five stigmas. Ovary very large, downy, ovoid, 5-angled, with 5 compartments, each containing many kidney-shaped seeds with numerous grooves concentric at the hilum. ...
— The Medicinal Plants of the Philippines • T. H. Pardo de Tavera

... line; this latter was the proscenium or stage, and is near 200 feet in length. Upon the ground-plan, at half distance from the centre to the outer curve, the vomitories or passages for entrance and exit begin, leaving an open area; these are formed in concentric semicircles, divided across by radii, all coming from ...
— Byeways in Palestine • James Finn

... steeply to admit of a sliding descent if cautiously performed. The shady bottom, dank and chilly, is thus gained, and reveals itself as a kind of winding lane, wide enough for a waggon to pass along, floored with rank herbage, and trending away, right and left, into obscurity, between the concentric walls of earth. The towering closeness of these on each hand, their impenetrability, and their ponderousness, are felt as a physical pressure. The way is now up the second of them, which stands steeper and higher than the first. To turn aside, as did Christian's companion, ...
— A Changed Man and Other Tales • Thomas Hardy

... were compared by him with observation. These were the Ptolemaic, the Copernican, and the Tychonic. The two latter placed all of the planetary orbits concentric with one another, the sun being placed a little away from their common centre, and having no apparent relation to them, and being actually outside the planes in which they move. Kepler's first great discovery was that the planes ...
— History of Astronomy • George Forbes

... greatly—their diameters varying by at least one millimeter to one and a half centimeters. The surface of the smaller globules is smooth, but that of the larger ones is rough. Even by the naked eye, it may be seen that both the large and small globules are formed of regularly superposed concentric layers. If an extremely thin section be made through one of them it is found that the number of layers is very great and that they are remarkably regular (A). By the microscope, it has been ascertained that each layer is about 0.007 ...
— Scientific American Supplement, No. 286 - June 25, 1881 • Various

... The concentric labyrinth of the city's plan is indeed something altogether unique; but whether it owes its origin to the fear of the old French barricade or to a desire for grandeur and scope, the effect attained is the same one of airy magnificence—monstrous avenues crossing the right angles of the streets ...
— Lippincott's Magazine. Vol. XII, No. 33. December, 1873. • Various

... observes "that in the ancient Chinese works, three concentric inclosures are mentioned in connection with the palace. The innermost inclosed the Ta-nei, the middle inclosure, called Kung-ch'eng or Huang-ch'eng, answering to the wall surrounding the present prohibited city, and was about 6 li in circuit. Besides this there was an outer wall (a rampart ...
— The Travels of Marco Polo Volume 1 • Marco Polo and Rustichello of Pisa

... in the meridian, the slide parallel with the earth's axis, and the circle, E, at right angles with the slide, the pencil of solar light passing through the aperture will describe, in one day, a cone having the slide for an axis; that is to say, concentric with the equator circle. If, moreover, the aperture is properly placed, the luminous pencil will pass through the equator circle itself; to this effect, the aperture should be in a position such that the angle, ...
— Scientific American Supplement, No. 810, July 11, 1891 • Various

... certain sound or note, depending upon their distances and velocities; and as these were regulated by harmonic laws, they necessarily formed as a whole a complete musical scale." "In the whorl of the distaff of necessity there are eight concentric whorls. These whorls represent respectively the sun and moon, the five planets, and the fixed stars. On each whorl sits a siren singing. Their eight tones make one exquisite harmony." Milton added a ninth ...
— Six Centuries of English Poetry - Tennyson to Chaucer • James Baldwin

... members not a little diverse in thought and various in knowledge, might be more useful to the public than perhaps they can fairly be said to have approved themselves hitherto, by using their variety of power rather to support intellectual conclusions by concentric props, than to shake them with rotatory storms of wit; and modestly endeavouring to initiate the building of walls for the Bridal city of Science, in which no man will care to identify the particular stones he lays, rather than ...
— A Joy For Ever - (And Its Price in the Market) • John Ruskin

... old Ptolemaic theory of a succession of solid crystal concentric spheres, in which the heavenly bodies were fixed, and which revolving carried these with them. The lowest or innermost of these spheres was that of the moon. "The hollow round of Cynthia's seat" is, therefore, this sphere ...
— England's Antiphon • George MacDonald

... of the lantern were diamond shaped and of plate glass. In the middle of the lantern was the large concentric-ringed glass of ...
— Some Naval Yarns • Mordaunt Hall

... a "residential quarter" of high repute. Fill all these streets, and a dozen others like them, with rank and wealth and fashion, youth and beauty, pleasure-seeking and self-indulgence, and you have described the concentric circles of which Marlborough House was the heart. Sydney Smith, no mean authority on the social capacities of London, held that "the parallelogram between Oxford Street, Piccadilly, Regent Street, and Hyde Park, enclosed more intelligence ...
— Fifteen Chapters of Autobiography • George William Erskine Russell

... higher than the dry land. Proof: Water could only be higher than the Earth, 1. If it were excentric, or 2. If it were concentric, but had some excrescence. ...
— Readings in the History of Education - Mediaeval Universities • Arthur O. Norton

... of Angostura, and masses of diorite in balls, with concentric layers, near Muitaco, appear to be superposed, not on mica-slate, but immediately on gneiss-granite. I could not, however, distinctly ascertain whether a part of this pyritous diorite was not enclosed on the banks of the Orinoco, as it is at the bottom of the sea near Cabo Blanco, and at the Montana ...
— Equinoctial Regions of America V3 • Alexander von Humboldt

... mahogany or chesnut brown; his beard was cut short or shaven, and his hair was black, in short, frizzled curls, burnt as it were at the tops. He had three circular spots on each arm, about the size of a crown-piece, consisting of several concentric circles of elevated points, which answered to the punctures of the Otaheiteans, but were blacker; besides these, he had other black punctures on his body. A small cylinder was fixed through two holes in the loop of his ear, and his left hand wanted the little finger. He continued his silence ...
— A General History and Collection of Voyages and Travels, Volume 14 • Robert Kerr

... hidden in an almost perpetual gloom, were decorated in monochrome by Sir James Thornhill; but his work has failed to resist the chemical action of the surcharged atmosphere. Yet a word or two about it may interest. Concentric circles surround the opening; and the remaining surface is ingeniously divided into eight compartments by designs of piers and round arches; the piers coinciding with the eight recesses below. In these compartments are scenes from the life of the patronal saint: ...
— Bell's Cathedrals: The Cathedral Church of St. Paul - An Account of the Old and New Buildings with a Short Historical Sketch • Arthur Dimock

... towards the large white plains; but they had gone no farther than two or three miles before they saw numerous tracks; from that point, they ran down to the shore of Victoria Bay, and appeared to surround Fort Providence with a series of concentric circles. ...
— The Voyages and Adventures of Captain Hatteras • Jules Verne

... those of the planets to which attention should be at once called: the planets, being under the control of a central force emanating from their immediate master, the sun, all move in the same direction and in orbits concentric about the sun; the stars, on the other hand, move in every conceivable direction and have no apparent center of motion, for all efforts to discover such a center have failed. At one time, when theology had finally to accept the facts of science, a grandiose conception arose in ...
— Curiosities of the Sky • Garrett Serviss

... can't see into the female plug, but look here at the male. See those concentric tubes leading into the interior of the cabinet on the right? The outer one leads in the oxygen, the inner leads in the hydrogen. We need twice as much hydrogen as oxygen, so the inner tube has twice the volume ...
— Hanging by a Thread • Gordon Randall Garrett

... in diameter, and their weight 300 grains. When picked up whole, which was not always the case, their general outline was elliptical, with a white, or nearly opaque spot in the centre, about which were arranged concentric layers, increasing in transparency to the outside. Some of them exhibited a beautiful star-like and fibrous arrangement, the result of rows of air bubbles dispersed in different radii. The figures at the head of this chapter show the ...
— The Rain Cloud - or, An Account of the Nature, Properties, Dangers and Uses of Rain • Anonymous

... shop had become frightfully hot. Mr Verloc, getting off the sofa with ponderous reluctance, opened the door leading into the kitchen to get more air, and thus disclosed the innocent Stevie, seated very good and quiet at a deal table, drawing circles, circles, circles; innumerable circles, concentric, eccentric; a coruscating whirl of circles that by their tangled multitude of repeated curves, uniformity of form, and confusion of intersecting lines suggested a rendering of cosmic chaos, the symbolism of a mad art attempting the inconceivable. The artist never turned his head; and ...
— The Secret Agent - A Simple Tale • Joseph Conrad

... rod, which not only sustained his weight, in addition to its own, but he pushed with his hands against the ceiling, increasing the downward pressure on the rod, which was only acted upon as a powerful spring would have been, but still maintaining its perpendicular position concentric to the inner surface of the helices. I held,' says the reporter, 'an iron rod in my hand, with the end of which I touched that of the suspended rod. I could not detach it by pulling or jerking, and could only alter ...
— Chambers's Edinburgh Journal, No. 425 - Volume 17, New Series, February 21, 1852 • Various

... not go away on vacations. He was a homely man, with a large family, and he took serious views of life. He was country bred, and he had never outgrown a certain rusticity of appearance. It was said that his wife always cut his hair, and the concentric circles made by the neatly trimmed ends lent verisimilitude to the tale that she began at the crown with a butter dish to guide her scissors, then extended the diameter of her circle by using next a saucer, and last a ...
— The Short Line War • Merwin-Webster

... where they can be devoured by vultures. The towers themselves are at least half a dozen in number, and they vary in size. But the style of their construction is uniform. Inside of a lofty circular wall are concentric beds of stone, each with its groove in which a corpse can be laid. There are three concentric circles, the outermost for men, the next inner for women, the innermost for children. The structure has no roof, but is open to the air. Great flocks of vultures perch upon the top of the outermost ...
— A Tour of the Missions - Observations and Conclusions • Augustus Hopkins Strong

... Fenachrone lay in a jungle plain surrounded by towering hills. A perfect circle of immense diameter, its buildings of uniform height, of identical design, and constructed of the same dull gray, translucent metal, were arranged in concentric circles, like the annular rings seen upon the stump of a tree. Between each ring of buildings and the one next inside it there were lagoons, lawns and groves—lagoons of tepid, sullenly-steaming water; lawns which were veritable carpets of lush, rank rushes and of dank mosses; groves ...
— Skylark Three • Edward Elmer Smith

... an enormous slab, thirteen feet long, placed over them horizontally to form the roof, and another, nearly as large, to form the floor. These stones are of granite, and no cement is used to unite them. They are covered with incised figures of unknown meaning: sculptures in concentric whorls or circles, as if tattoed like the cheek of a New Zealander; and the only forms to be distinguished are serpent-like figures, and the representation of an axe, similar to those to be seen in the Grotte des Fees, the Dol des Marchands, and the Manne-Lud. In one of the side ...
— Brittany & Its Byways • Fanny Bury Palliser

... and center pin 8 feet 3 inches apart. Using the hood lines, with center pin as center, describe two concentric circles with radii 8 feet 3 inches and 11 feet 3 inches. In the outer circle drive two door guy pins 3 feet apart. At intervals of about 3 feet drive the ...
— Manual for Noncommissioned Officers and Privates of Infantry • War Department

... a man has a series of concentric envelopes round it, like the core of an onion, or the innermost of a nest of boxes. First, he has his natural garment of flesh and blood. Then, his artificial integuments, with their true skin of solid stuffs, their cuticle ...
— The Autocrat of the Breakfast-Table • Oliver Wendell Holmes, Sr. (The Physician and Poet not the Jurist)

... For, in an oblong square, the soil was poor, as if it had been cultivated, till the whites broke it up, and where the logs of the house had decayed, was a strip of rich mould. A maple tree, over the pit, being cut down, two hundred and fifty concentric circles were counted, making the mound to be A. D. 1574. It has been supposed by the villagers that the bones were deposited there before the discovery of America, but the finding of some metal tools with a French stamp, placed the date within ...
— Legends, Traditions, and Laws of the Iroquois, or Six Nations, and History of the Tuscarora Indians • Elias Johnson

... OOLITE is composed of numerous small egg-like grains, resembling the roe of a fish, each of which has usually a small fragment of sand as a nucleus, around which concentric layers of ...
— The Student's Elements of Geology • Sir Charles Lyell

... there is a nucleus of whiter iron-earth surrounded by many concentric strata of darker and lighter iron-earth alternately. In one, which now lies before me, the nucleus is a prism of a triangular form with blunted angles, and about half an inch high, and an inch and half broad; on every side of this are concentric strata of similar iron-earth alternately ...
— The Botanic Garden - A Poem in Two Parts. Part 1: The Economy of Vegetation • Erasmus Darwin



Words linked to "Concentric" :   coaxal, coaxial, eccentric



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