"Convex" Quotes from Famous Books
 ... say, A curved line. If they are then asked how they may know it is D, they will say, Because it is made of a perpendicular line and has a curved line behind. Further information may then be given. Turn the D letter up thus , and say, I want to teach you the difference between concave and convex: the under part of the curve is concave and the upper part of it is convex. Then say, I shall now take the letter away, and wish you to shew me concave and convex on one of your fingers; when they will bend the forefinger and point them both out on it. Go on with the other letters ...
— The Infant System - For Developing the Intellectual and Moral Powers of all Children, - from One to Seven years of Age • Samuel Wilderspin
... gives us an example of a good, clearly-defined and expressive thought-form, with each colour well marked off from the others. It represents the feeling of a man upon meeting a friend from whom he has been long separated. The convex surface of the crescent is nearest to the thinker, and its two arms stretch out towards the approaching friend as if to embrace him. The rose colour naturally betokens the affection felt, the light green shows the depth ...
— Thought-Forms • Annie Besant
... will look into the article 'Optics' in the Edinburgh Encyclopedia (vol. xv. p. 643), you will find an account of what has been previously done to reduce by one-half the length of reflecting telescopes. The advantage of substituting, as you propose, a convex for a plane mirror arises from two causes that a spherical surface is more easily executed than a plane one; and that the spherical aberration of the larger speculum, if it be spherical, will be diminished by the opposite ...
— James Nasmyth's Autobiography • James Nasmyth
... that the men of the Stone age exercised their talent. Many and varied are the subjects which have been found engraved on plaques of ivory or on stone, and incised on bears' teeth or on stag horn. We represent one forming the hilt of a dagger (Fig. 36), and another representing a bear with the convex forehead, characteristic of the species, engraved on a piece of schist (Fig. 37), and a mammoth engraved on an ivory plaque with its long mane, trunk, and curved tusks (Fig. 38). The artist who depicted these animals with such faithful exactitude evidently lived ...
— Manners and Monuments of Prehistoric Peoples • The Marquis de Nadaillac
... portion of the lid fell clattering to the floor, and the three men and Miss Sally peered anxiously into the box. From it the Colonel tenderly lifted a nickel-plated cylinder, as tall as a man's knee and as large around as a leg of mutton. It had a convex top, and on one side a dial. From near the base a ...
— Kilo - Being the Love Story of Eliph' Hewlitt Book Agent • Ellis Parker Butler
... heraldic Shield is generally flat; but sometimes the curved edges are made to appear as if they had been slightly rounded off. Some early Shields are represented as bowed—hollowed, that is, in order to cover more closely the person of the bearer, and consequently having a convex external contour, as in No. 39. In early examples of bowed Shields the whole of the armorial blazonry is sometimes displayed on the face of that portion of the Shield which is shown. Aridge, dividing them in pale, but not necessarily in any way ...
— The Handbook to English Heraldry • Charles Boutell
... STUNTS AND SPEEDS Lack of Improvements in Machines. Men Exploited and not Machines. Abnormal Flying of no Value. The Art of Juggling. Practical Uses the Best Test. Concaved and Convex Planes. How Momentum is a Factor in Inverted Flying. The Turning Movement. When Concaved Planes are Desirable. The Speed Mania. Uses of Flying Machines. Perfection in Machines Must Come Before Speed. The Range of ...
— Aeroplanes • J. S. Zerbe***
... pretty children. The roofing of this little 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 down these gullies into the ...
— Argentina From A British Point Of View • Various
... The—BODY—was convex, swelling outward like the boss of a shield; shimmering rosy-gray and crystalline. From the vital ovoids ran a pattern of sparkling threads, irised and brilliant as floss of molten jewels; converging with interfacings of spirals, of volutes ...
— The Metal Monster • A. Merritt
... breastwork on our side, could poke the muzzle of a gun over the headlog and by elevating the breech could send a plunging shot among the rebels who filled the outside ditch and expose for an instant only the hand and a part of the arm that discharged the gun. But on account of the convex face of the work on their side the rebels could not reach us with their fire without exposing themselves above the breastwork. They kept up the vain struggle until long after dark, but finally elevated their hats on the ends of their muskets above the breastwork, as a signal to us, and called ...
— The Battle of Franklin, Tennessee • John K. Shellenberger
... ever said anything ungracious. She never had much to say for herself. I was perhaps the one who saw most of the Davidsons at home. What I noticed under the superficial aspect of vapid sweetness was her convex, obstinate forehead, and her small, red, pretty, ungenerous mouth. But then I am an observer with strong prejudices. Most of us were fetched by her white, swan-like neck, by that drooping, innocent profile. There was a lot of latent devotion to Davidson's wife hereabouts, ...
— Within the Tides • Joseph Conrad
... bear the same relation to Thucydides and Herodotus that a pillar of the Roman Ionic order, with its angularly turned volutes and arbitrary perpendicularity of outline, does to its graceful Greek mother, with her primitive and expressive scrolls, and the slightly convex profile of her shaft. In more modern times, a black-letter, quaint sentence of Froissart or Monstrelet is like a knight in full armor, bristling with quaint, beautiful devices, golden dragons inlaid on Milan cuirasses, golden vines on ...
— Continental Monthly - Volume 1 - Issue 3 • Various
... began to take the most fantastic shapes. They flattened into a level table-land, and then they shot up into pinnacles and spires. Then they shrank together in the middle and spread out on top till they looked like great domed mushrooms. Then the broad convex tops separated themselves entirely from their stalk-like bases and hung detached in the sky with daylight underneath. And then these mushroom tops stretched out laterally and threw up peaks of their own until there were distinct duplicate ranges, ...
— Ten Thousand Miles with a Dog Sled - A Narrative of Winter Travel in Interior Alaska • Hudson Stuck
... from my happiness, by a diminution of the pale and gentle light that lit the Sea of Sleep. I turned toward the huge, white orb, with a premonition of coming trouble. One side of it was curving inward, as though a convex, black shadow were sweeping across it. My memory went back. It was thus, that the darkness had come, before our last parting. I turned toward my Love, inquiringly. With a sudden knowledge of woe, I noticed how wan and unreal she had grown, even in that brief space. Her voice seemed to come ...
— The House on the Borderland • William Hope Hodgson
... connection, denotes union; the lily work, from its whiteness, purity and peace; and the pomegranate, from the exuberance of its seed, denotes plenty. They also have two large globes, or balls, one on each; these globes or balls contain, on their convex surfaces, all the maps and charts of the celestial and terrestrial bodies; they are said to be thus extensive to denote the universality of Masonry, and that a Mason's charity ought to be equally extensive. Their composition is molten, or cast brass; they were cast on the banks ...
— The Mysteries of Free Masonry - Containing All the Degrees of the Order Conferred in a Master's Lodge • William Morgan
... overkeenness of the critical had turned in him to disease! His eye was sharpened to see the point of a needle, but a tree only as a blotted mass! A man's mind was meant to receive as a mirror, not to concentrate rays like a convex lens! Was it not then likely that the first reading gave the true impression of the ethereal, the vital, the flowing, the iridescent? Did not the solitary and silent night brood like a hen on the nest of the poet's imaginings? Was it not the night that waked the soul? ...
— Home Again • George MacDonald
... words over and over: there was nothing more. I examined the other leaves of the plant—on both sides, concave and convex, I examined them—not a word more could I find. What I had read was all she ...
— The War Trail - The Hunt of the Wild Horse • Mayne Reid
... Earth and Water, And the nursling of the Sky: I pass through the pores of the ocean and shores; I change, but I cannot die. For after the rain, when with never a stain The pavilion of heaven is bare, And the winds and sunbeams with their convex gleams Build up the blue dome of air, I silently laugh at my own cenotaph, And out of the caverns of rain, Like a child from the womb, like a ghost from the tomb I arise, and unbuild ...
— The Home Book of Verse, Vol. 3 (of 4) • Various
... cut and castellated at the top, and bare everywhere as any pile of masonry. The hills beyond became naked, or covered only with short grass of the grama kind and dusty-gray sage-brush. Simultaneously they lost some of their previous basaltic characteristics, running into more convex outlines, which receded from the river. We could not fail to recognize the fact that we had crossed one of the great thresholds of the continent,—were once more east of the Sierra-Nevada axis, and in the great central plateau which ...
— The Atlantic Monthly, Volume 14, No. 86, December, 1864 • Various
... said the Colonel, pointing to an odd-looking house of antique and mixed architecture, with a large convex window above the hall-entrance, in the second story. This house is situated in Broad street, next to the aristocratic St. Michael's Church, one of the most public places in the city. "In years past, ...
— Manuel Pereira • F. C. Adams
... had raised itself by the down-stroke before, so that it would never get into the air at all. To meet this difficulty, the wing is so shaped that it is concave or hollow upon its lower surface, so that it gathers the air together and prevents it from escaping; while the upper surface is convex or bulging, so that the air slides off from it when the wing is moved upward. If you have ever been caught in a sudden squall of wind with an open umbrella, you will easily understand how great a difference in resisting power this difference in the shape of the two sides of the ...
— St. Nicholas Magazine for Boys and Girls, Vol. 5, September 1878, No. 11 • Various
... volunteered no remarks. It was her part to wait and watch while he concentrated every faculty upon his task. He had come to an impasse after crossing a dozen feet of the wall and was working up to get around a slab of granite which protruded, a convex barrier, from the surface of the cliff. It struck the girl that from a distance he must look like a fly on a pane of glass. Even to her, close as she was, that ...
— The Yukon Trail - A Tale of the North • William MacLeod Raine
... post-office, at the north-east corner of Duncan-street, the foundation stone of which was laid in 1824. The whole site was excavated, and is divided into cellars, arched and groined, with a spacious area round the whole, for the convenience of access to each, and lighted by powerful convex lenses from the interior of the building. Over these is the principal building—an enclosed market-house, with twenty shops round the exterior for butchers and others, and twenty others corresponding in size with them, fronting the ...
— Mirror of Literature, Amusement, and Instruction, No. 276 - Volume 10, No. 276, October 6, 1827 • Various
... convex top the variety becomes somewhat higher than the species (5 to 7.5 cm.), and the flowers are sometimes slightly longer (2 ...
— The North American Species of Cactus, Anhalonium, and Lophophora • John M. Coulter
... horizontal balance was constructed by Mr. Michel, with about an inch square of thin leaf-copper suspended at each end of it, as described in Dr. Priestley's History of Light and Colours. The focus of a very large convex mirror was thrown by Dr. Powel, in his lectures on experimental philosophy, in my presence, on one wing of this delicate balance, and it receded from the light; thrown on the other wing, it approached towards the light, and ...
— Zoonomia, Vol. I - Or, the Laws of Organic Life • Erasmus Darwin
... really had any mission at all, whether he had not rather yielded to deceitful suggestions, believed in the reality of phantoms, and been deceived by chance appearances. He saw the spiritual and moral features of his friends and disciples, deformed as in a convex mirror; he felt a disheartening certainty that all he had hoped of them was vain. Then again that sad, tender little song returned, no longer beseeching but full of pity, of a pity comprehending all his bitter struggle, the sorrowing pity of ...
— The Saint • Antonio Fogazzaro
... which was too large to be closed again. Harris fell, and was killed. Sadler, deprived of ballast by his long stay in the air, was dragged over the city of Boston, and thrown against the chimneys. Sadler fell, and was killed. Cocking descended with a convex parachute which he pretended to have perfected. Cocking fell, and was killed. Well, I love them, those noble victims of their courage! and I will die like ...
— A Voyage in a Balloon (1852) • Jules Verne
... were in pairs, each pair having one of the sides of a shape resembling different parts of the ship's bottom, with the exception that they were chiefly concave, while the bottom of a vessel is mainly convex. At one extremity each pair was firmly connected by a short, massive, iron link, of about two feet in length; and, at its opposite end, a large eye-bolt was driven into each stick, where it was securely forelocked. When the Walrus was stationary, we learned, for the first time, the ...
— The Monikins • J. Fenimore Cooper
... previously chosen a side, or, in other words, taken his chance on that side landing upward. Generally a coin is used, but a stone will do as a substitute, one side being marked. Shells may also be used, the throw to be determined by the light or dark side or the convex or concave side falling upward. The method of tossing is the same for any of these articles. One player tosses the coin in the air, the players having chosen "heads" or "tails"; the side of the coin having the date on it is called "heads," ...
— Games for the Playground, Home, School and Gymnasium • Jessie H. Bancroft
... reflect that once we were face to face it chiefly mattered that I should succeed in looking still more intensely unastonished. All I saw at first was the big gold bar crossing each of her lenses, over which something convex and grotesque, like the eyes of a large insect, something that now represented her whole personality, seemed, as out of the orifice of a prison, to strain forward and press. The face had shrunk away: it looked smaller, appeared ...
— Embarrassments • Henry James
... of this description is useful in crossing marshes, or in shallow water. Fig. 5, Pl. III, gives a good example of this kind of bridge, under 20 feet in height. If on a curve, there must be extra bracing on the convex side. ...
— Instructions on Modern American Bridge Building • G. B. N. Tower
... rising perpendicularly, which extend from Lake Pepin to below the mouth of the Wisconsin, as if they were walls built of equal height by the hand of man. Wherever the river describes a curve, walls may be found on the convex side of it. ...
— Atlantic Monthly, Vol. 7, No. 43, May, 1861 • Various
... in countless years of observation we have formed a series of less and less false, more and more nearly true "ideas" about the phenomenon. The "ideas" are reflexes of the phenomenon, reflected in our midst as in a mirror; the reflexes may be distorted, as in a convex or concave mirror, but they suggest an ideal reflex valid in infinity. It is of the utmost importance to realize that the words which are used to express the ideas and the ideals are THE MATERIALIZATION of the ideas and ideal; ...
— Manhood of Humanity. • Alfred Korzybski
... by a skilful hand so as to rise upon the air, and its crooked course may be, nevertheless, under control. It is about two feet four inches in length, and nine and a half ounces in weight. One side, the uppermost in throwing, is slightly convex, the lower side is flat. It is amazing to witness the feats a native will perform with this weapon, sometimes hurling it to astonishing heights and distances, from which, however, it returns to fall beside him; and sometimes allowing it to fall upon ...
— Australia, its history and present condition • William Pridden
... if anything. We turned to the right and groped along the wall, which was smooth as glass and higher than my best reach. It seemed to the touch to be slightly convex, but ...
— Under the Andes • Rex Stout
... crestfallen air. "And I thought I was acting the part of a person who was not mad about her to the life. Well, I never was any good at dissembling. I shouldn't wonder if even old Peppmueller noticed something through his double convex lenses. But however crazy I may have been as an undeclared suitor, I am going to be much worse now. Here's the place," he broke off, as the cab rushed down a side-street and swung round a corner into a broad and populous thoroughfare. "We're there ...
— The Woman in Black • Edmund Clerihew Bentley
... the problem, How does one association exclude another? Only, as J. S. Mill replies, when one idea includes the idea of the absence of the others.[555] We cannot combine the ideas of a plane and a convex surface. Why? Because we have never had both sets of sensations together. The 'commencement' of one set has always been 'simultaneous with the cessation of another set,' as, for instance, when we bend a flat sheet of paper. The difficulty ...
— The English Utilitarians, Volume II (of 3) - James Mill • Leslie Stephen
... was our daily resort. The coast is broken by shallow bays. The reef is detached, elevated, and includes a lagoon about knee-deep, the unrestful spending-basin of the surf. The beach is now of fine sand, now of broken coral. The trend of the coast being convex, scarce a quarter of a mile of it is to be seen at once; the land being so low, the horizon appears within a stone-cast; and the narrow prospect enhances the sense of privacy. Man avoids the place—even his footprints are uncommon; but a great ...
— In the South Seas • Robert Louis Stevenson
... bread is still used. We give a cut of the quern grinding-mill, which, towards the end of the last century, was in use in that country, and which is thus described by Dr. Johnson in his "Journey to the Hebrides:"—"It consists of two stones about a foot and half in diameter; the lower is a little convex, to which the concavity of the upper must be fitted. In the middle of the upper stone is a round hole, and on one side is a long handle. The grinder sheds the corn gradually into the hole with one hand, and works the handle ...
— The Book of Household Management • Mrs. Isabella Beeton
... the tent was to be the head. Here he laid a row of the boughs, three deep, with the convex side uppermost, then he began "shingling" the boughs in rows toward the foot. This was done by placing the butt end of the bough firmly against the ground with half the bough, the convex side uppermost, overlapping ...
— Troop One of the Labrador • Dillon Wallace
... distant climes, a dreary scene, Where half the convex world intrudes between, Through torrid tracts with fainting steps they go, Where wild Altama[25] murmurs to their woe. Far different there from all that charmed before 345 The various terrors of that horrid shore; Those blazing suns that ...
— Selections from Five English Poets • Various
... we have given; but much may be done with judicious aid. And a profound knowledge of their greatest writer would do more than almost anything else to bind together as Englishmen, in a true and unselfish way, the hearts of the coming generations; for his works are our country in a convex magic mirror. ...
— A Dish Of Orts • George MacDonald
... alone with my image in the mirror," thought Frederick. "I don't need all those distressing concave and convex mirrors which other people are. This condition in which I am is the original condition, and in the original condition one escapes the distortion to which other people's words and glances subject one. The best thing is to be silent or to speak with ...
— Atlantis • Gerhart Hauptmann
... slower heat of a simple flame may be employed by lighting the measure full of spirits and then placing it on the bottom of the upturned pan as shown at fig. 6, where it will be observed that the three legs are placed in their sockets with the convex curve of each turned outward, so that the lid, as a frying-pan, can rest upon their ...
— The Voyage Alone in the Yawl "Rob Roy" • John MacGregor
... struggling forth a convex shield that, when floating, showed its lower face smooth and yellow. The four wrinkled paws and the serpent-like head of the turtle were emerging from its cuirass of tortoise-shell. The little sea horses, slender and graceful as ...
— Mare Nostrum (Our Sea) - A Novel • Vicente Blasco Ibanez
... of an inch thick it was quite impracticable, by any contrivance yet discovered, to measure their thickness, and determine the law according to which the colours varied with the thickness of the film. Newton surmounted this difficulty by laying a double convex lens, the radius of the curvature of each side of which was fifty feet, upon the flat surface of a plano-convex object-glass, and in the way he obtained a plate of air, or of space, varying from the thinnest possible edge at the ...
— The World's Greatest Books, Vol IX. • Edited by Arthur Mee and J.A. Hammerton
... Mr. Goopes when at home dressed simply in a pajama-shaped suit of canvas sacking tied with brown ribbons, while his wife wore a purple djibbah with a richly embroidered yoke. He was a small, dark, reserved man, with a large inflexible-looking convex forehead, and his wife was very pink and high-spirited, with one of those chins that pass insensibly into a full, strong neck. Once a week, every Saturday, they had a little gathering from nine till the small hours, just talk and perhaps reading aloud and ...
— Ann Veronica • H. G. Wells
... have been found of great service, as mentioned in Species 18 of this genus. This has induced me to propose in curvatures of the spine, to put an issue on the outside of the curve, where it could be certainly ascertained, as the bones on the convex side of the curve must be enlarged; in one case I thought this of service, and recommend the ...
— Zoonomia, Vol. II - Or, the Laws of Organic Life • Erasmus Darwin
... being once, his peaked head With a few lank and greasy hairs was spread; His visage blue, in length was like your own Seen in the convex of a table-spoon. His mouth, or rather gash athwart his face, To stop at either ear had just the grace, A hideous rift: his teeth were all canine, And just like Death's (in Milton) was his grin. One shilling, and one fourteen-penny ...
— Poems (1828) • Thomas Gent
... also QO, producing the latter to cut the circumference in E. By this process we may construct the curve QBZ, each point of which is also equally distant from the given point D, and from the concave instead of the convex arc of the given circumference. The difference between QD and QO being constant and equal to FO, and AB being also equal to FO, this curve is the other branch of the same hyperbola, whose major axis is equal to the radius ...
— Scientific American Supplement, No. 803, May 23, 1891 • Various
... is eclipsed when the fiery mouth of it is stopped and hindered from respiration. Heraclitus, that it is after the manner of the turning of a boat, when the concave seems uppermost to our sight, and the convex nethermost. Xenophanes, that the sun is eclipsed when it is extinguished; and that a new sun is created and rises in the east. He gives a farther account of an eclipse of the sun which remained for a whole month, and again of an eclipse which ...
— Essays and Miscellanies - The Complete Works Volume 3 • Plutarch
... as "crabs." They were not large, and the only part of them which projected above the water was the middle of an elliptical deck, slightly convex, and heavily mailed with ribs of steel. These vessels were fitted with electric engines of extraordinary power, and were capable of great speed. At their bows, fully protected by the overhanging deck, ...
— The Great War Syndicate • Frank Stockton
... third rammed it with a tamping iron, and a fourth kept the new pipe sprinkled, and applied a coat of neat cement slurry to the inside when it was sufficiently hard. In molding, the form of the bell at the bottom was secured by an iron ring that was first dropped into the form, and the reverse or convex form at the top was made with a second ring. While still in its form the pipe was rolled or lifted into its place in the drying yard, and the form was then carefully removed. A very slight blow in removing ...
— Concrete Construction - Methods and Costs • Halbert P. Gillette
... professional skill has been shown in the construction, or rather the building, of the road itself. The great attention which Mr. Telford has devoted, to give to the surface of the road one uniform and moderately convex shape, free from the smallest inequality throughout its whole breadth; the numerous land drains, and, when necessary, shores and tunnels of substantial masonry, with which all the water arising from springs or falling in rain is instantly carried off; the great care with which a sufficient foundation ...
— The Life of Thomas Telford by Smiles • Samuel Smiles
... Voiture.' This was illustrated with a burlesque plate representing himself as seen from the back of his chair, and surrounded by a wondering and mocking world. His back, he said, was turned to the public, because the convex of his back is more convenient than the concave of his stomach for receiving the inscription of his name ...
— The Spectator, Volumes 1, 2 and 3 - With Translations and Index for the Series • Joseph Addison and Richard Steele
... the possession of a wonderful secret. Day after day I visited the cave and examined this phenomenon—and yet another more marvellous in its connection with the first. The huge lens was a simple accident of curved rocks and convex water, planed smooth as crystal. In other than a droughty summer it would probably not exist; the spouting torrent would overwhelm it—but I know not. Was not this astonishing enough? Yet Nature had worked a second miracle to mock in anticipation the self-sufficient plagiarism ...
— At a Winter's Fire • Bernard Edward J. Capes
... apparatus. In this instrument compressed air is used as a motive force for driving the perforating needle. The inverted cup, shown in detail in Fig. 3, has its mouth closed with a flexible diaphragm, which is vibrated rapidly by a pitman having a convex end attached by its center to the middle of the diaphragm. The pitman is reciprocated by a simple treadle motion, which will be readily understood by reference to ...
— Scientific American, Volume 40, No. 13, March 29, 1879 • Various
... is the same way with curves; given two lines of equal length and enclose one with convex and the other with concave curves, and the line ...
— Color Value • C. R. Clifford
... drenched with blood which was still oozing from the wound with mixed brain-substance and fragments of bone. The cut was horizontal on a level with the orbit, 5 1/2 inches long externally, and, owing to the convex shape of the axe, a little less internally. Small spicules of bone were removed, and a cloth was placed on the battered skull to receive the discharges for the inspection of the surgeon, who on his arrival saw at least two tablespoonfuls of cerebral substance on ...
— Anomalies and Curiosities of Medicine • George M. Gould
... four angle shafts at each corner of the main pier, taking the outer rings to same. The plan is the same at the triforium level. The smaller or subsidiary piers (as at X) have single vaulting shafts on the nave face, double ones to the aisle, and under the arcade arches convex faces, with four angle shafts, as in main piers. The plan of these piers determines the elevation. The nave arcade arches, ornamented with the billet, and triforium with a chevron or zig-zag, are almost ...
— Bell's Cathedrals: The Cathedral Church of Norwich - A Description of Its Fabric and A Brief History of the Episcopal See • C. H. B. Quennell
... instance, the rounded, "bomb-proof" aspect of the expanses would be changed into the distinct contour of gigantic waves with a very fine, very sharp crest-line. The upsweep from the northwest would be ever so slightly convex, and the downward sweep into the trough was always very distinctly concave. This was not the ripple which we find in beach sand. That ripple was there, too, and in places it covered the wide backs of ...
— Over Prairie Trails • Frederick Philip Grove
... convex outside curve of wings allowed the wind to escape over them, while the under side, being concave, held every breath. Thus the upward stroke did not simply counterbalance the downward and keep him stationary. Moreover, she showed him how the feathers underlapped each other so that ...
— Jimbo - A Fantasy • Algernon Blackwood
... been usual among the earliest races of mankind hitherto discovered. According to Broca, the measurements of these fossil human tibiae resemble those of apes. Moreover, the bone is bent and strongly convex forwards, while its angles are so rounded as to present the nearly oval section seen in apes. It is in association with these ape-like human tibiae that perforated humeri of man are found in ...
— Darwin, and After Darwin (Vol. 1 and 3, of 3) • George John Romanes
... descending further. The mountain tops were now close beneath us. Clouds were overhead, white masses with blue sky behind them. A day of brilliant sunlight. But soon, with our forward cruising, it was night. The sunlight dropped beneath the sharply convex horizon; the sea and the ...
— Brigands of the Moon • Ray Cummings
... lies nearly horizontal and rests unconformably upon the older beds. The direction of the folds in the older series is in Iviza nearly west to east, in Majorca south-west to north-east, and in Minorca south to north, thus forming an arc convex towards the south-east. The Devonian is visible only in Minorca, the Trias being the oldest system represented in the other islands. The higher part of the Cretaceous is absent, and it appears to have been during this ...
— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 - "Baconthorpe" to "Bankruptcy" • Various
... that I ever met with could go beyond Henry Maudslay himself in his dexterous use of the file. By a few masterly strokes he could produce plane surfaces so true that when their accuracy was tested by a standard plane surface of absolute truth, they were never found defective; neither convex, nor concave, nor ...
— James Nasmyth's Autobiography • James Nasmyth
... no doubt, to contain the more precious objects of the funerary furniture. Until the beginning of this century the vault had preserved its original lining of glazed pottery. Three quarters of the wall surface was covered with green tiles, oblong and lightly convex on the outer side, but flat on the inner: a square projection pierced with a hole served to fix them at the back in a horizontal line by means of flexible wooden rods. Three bands which frame one of the doors are inscribed with the titles of the Pharaoh. ...
— The Great Events by Famous Historians, Vol. 1 • Various
... longer than that of Megachile, and compared with that of Xylocopa, the different segments are much more convex, giving a serrate outline to the back of the worm. The pupa, or chrysalis, we have found in the cells the last of July. It is white, and three-tenths of an inch long. It differs from that of the Leaf-cutter bee in having four spines on the end of ...
— Our Common Insects - A Popular Account of the Insects of Our Fields, Forests, - Gardens and Houses • Alpheus Spring Packard
... several times had an opportunity of seeing my men get fire by friction. A sharp-edged piece of bamboo is rubbed across the convex surface of another piece, on which a small notch is first cut. The rubbing is slow at first and gradually quicker, till it becomes very rapid, and the fine powder rubbed off ignites and falls through ...
— The Malay Archipelago - Volume II. (of II.) • Alfred Russel Wallace
... iii. 2, 241). But it may be regarded as certain that the hoplite shield or, in other words, the tactics of the Doric phalanx were imitated not from the Etruscans, but directly from the Hellenes, As to the -scutum-, that large, cylindrical, convex leather shield must certainly have taken the place of the flat copper -clupeus-, when the phalanx was broken up into maniples; but the undoubted derivation of the word from the Greek casts suspicion on the derivation of the thing itself from the Samnites. ...
— The History of Rome (Volumes 1-5) • Theodor Mommsen
... in the natural position of inaction, is perpendicular; and above the slight convexity at the root of the trunk there is a depression, in shape like a herald's shield: a bullet in the lower portion of that shield would reach the brain in a direct line. The head of the African elephant is completely convex from the commencement of the trunk to the back of the skull, and the brain is situated much lower than in that of the Indian species; the bone is of a denser quality, and the cases for the reception ...
— The Nile Tributaries of Abyssinia • Samuel W. Baker
... dim recollection that she had been asked to do this before, but again could not remember when or in what circumstances. She opened the lid and looked within. On a bed of black velvet was a tiny convex mirror, about the size of a sixpence. She looked at this, and was still looking at it when she walked slowly back to her chair and sat down. It had such a fascination, this little mirror, that she could not ...
— The Book of All-Power • Edgar Wallace
... to hurry aught that pertains to the sacred toilet. Nay, when the taper fingers had at last subjugated the ends of the knot, her mind was not quite easy, till, by a manoeuvre peculiar to the female hand, she had made her palm convex, and so applied it with a gentle pressure to the centre of the knot—a sweet little coaxing hand-kiss, as much as to say, "Now be a good knot, and stay so." The palm-kiss was bestowed on the ribbon, but the wearer's heart leaped to ...
— The Cloister and the Hearth • Charles Reade
... the peculiar form of the skull and body in the most highly cultivated races is not characteristic of any one race, but is common to all when improved up to the same standard. Thus the large-bodied, long-eared, English breeds with a convex back, and the small-bodied, short-eared, Chinese breeds with a concave back, when bred to the same state of perfection, nearly resemble each other in the form of the head and body. This result, it appears, is partly due to similar ...
— The Variation of Animals and Plants under Domestication - Volume I • Charles Darwin
... of the thorax at its lowest part, which is below the ribs. In front its attachment is to the cartilage at the pit of the stomach. It also connects with the transverse abdominal muscle. The diaphragm being convex, in inspiration the contraction of its fibres flattens it downward and presses down the organs in the abdomen, thus increasing the depth of the thorax. Expiration depends ...
— Resonance in Singing and Speaking • Thomas Fillebrown
... unsupported sole. The frog never comes in contact with the earth in any way, inflammation of the sensitive frog and sole takes place, and the arch of the sole bends down under the pressure until the ground surface of the hoof becomes flat or convex, bulging down even lower than the cruel iron that clamps its edge. This is the condition of a drop sole. This degenerate state of the foot has other complications. Active inflammation is often present and all the wretchedness of a pumiced foot—the ...
— Rational Horse-Shoeing • John E. Russell
... occasion to use this instrument in my own work, as a more simple, delicate, and efficient method was at my command, but for one measurement of convex surfaces I know of nothing that can take its place. I will briefly describe the ...
— Scientific American Supplement, No. 484, April 11, 1885 • Various
... and graceful arches. Deep moulding to pillars. Convex moulding to capitals with natural foliage. "Ball flower" ornament. Elaborate and flamboyant ...
— Seaward Sussex - The South Downs from End to End • Edric Holmes
... does not often happen to a youth. You are fortunate if you have a solid and adventurous mind: most unfortunate if you are a mere sensational whipster. There 's an explanation that covers the whole. I am as much in the dark as you are. I do not say which of us two has the convex eye.' ...
— The Shaving of Shagpat • George Meredith
... bird so called, since its bill recalls the small fishing boats that we observe keel upward high and dry on our seashores. This bill is ten inches in length, and four inches in breadth at the base. The upper mandible, which is strongly convex, exhibits upon its median line a slight ridge, which is quite wide at its origin, and then continues to decrease and becomes sensibly depressed as far as to the center of its length, and afterward rises on approaching the anterior extremity, where it terminates in a powerful ...
— Scientific American Supplement, No. 829, November 21, 1891 • Various
... alluded to is baked on small and convex iron plates, and when prepared is about the thickness of ...
— The Adventures of Hajji Baba of Ispahan • James Morier
... soil special arrangements must be made for drainage. Where possible the trench should have a convex surface and should be smooth. A rough bottom means delay in reliefs, and possible injuries. Where trenches are used for long periods board walks should be constructed. Under these drains or sink holes can be placed to collect water. A sink hole may be constructed by ...
— Military Instructors Manual • James P. Cole and Oliver Schoonmaker
... A moulding or arch formed of a curve or curves somewhat like the letter S, the curve of contra-flexure, part being concave and part convex. ...
— Our Homeland Churches and How to Study Them • Sidney Heath
... however, are reached by flights of marble steps, which lead to galleries for promenading on the inside similar to those on the outside. From these one enters the higher rooms, which are very beautiful, and have windows on the concave and convex partitions. These rooms are divided from one another by richly decorated walls. The convex or outer wall of the ring is about eight spans thick; the concave, three; the intermediate walls are one, or perhaps one and a half. Leaving this circle ...
— Ideal Commonwealths • Various
... reason may be, it will be difficult to shew. Perhaps this disposition may be of service to keep up a proper balance; or, it may assist toward the diurnal rotation of the earth, the free motions of the tides, &c.; or the water on one side may give a freer passage to the rays of the sun, and being convex and transparent, may concentrate, or at least condense, the solar rays internally, for some benefit to the land that lies on the other side."—This sort of reasoning, from our ignorance, is no doubt liable to objection, and Mr Jones had good sense and candour enough ...
— A General History and Collection of Voyages and Travels, Vol. 15 (of 18) • Robert Kerr
... one window open to the South, and at about three or four foot distance from this Window, on a Table, I place my Microscope, and then so place either a round Globe of Water, or a very deep clear plano convex Glass (whose convex side is turn'd towards the Window) that there is a great quantity of Rayes collected and thrown upon the Object: Or if the Sun shine, I place a small piece of oyly Paper very near the Object, between that and the light; then with a good large Burning-Glass ...
— Micrographia • Robert Hooke
... the mounds were always carved from a single piece, and consist of a flat curved base, of variable length and width, with the bowl rising from the center of the convex side (Anc. Mon., ...
— The Problem of Ohio Mounds • Cyrus Thomas
... former appearance was restored. The nature of the change was grotesque, following no fixed rule. The nearest resemblance to it that I know, is the distortion produced in your countenance when you look at it as reflected in a concave or convex surface—say, either side of a bright spoon. Of this phenomenon I first became aware in rather a ludicrous way. My host's daughter was a very pleasant pretty girl, who made herself more agreeable to me than ...
— Phantastes - A Faerie Romance for Men and Women • George MacDonald
... at Austerlitz, the French were arranged in a semicircle, with the convex front toward the allies, who occupied the outer arc on a range of heights. Such was the situation on the night of December 1, 1805. The morrow will be the first anniversary of our coronation in Notre Dame—a glorious ...
— Notable Events of the Nineteenth Century - Great Deeds of Men and Nations and the Progress of the World • Various
... soap into sections having concave ends, and in stamping, the corners are forced into the concavity, with the result that unsightly markings are produced at each end of the tablet. It is preferable to have a cutter with convex ends, and if the stamping is to be done in a pin mould the shape should be a trifle larger than the exact size ...
— The Handbook of Soap Manufacture • W. H. Simmons
... arms. Her silent anguish was disguised as awe. By this time she had an inspiration. She felt like the Queen of New York, she said. She must run to her room for a look in the glass, as there was only a weird old convex mirror in the study. In just a minute—or maybe two minutes—she would come back. She could have sobbed out "Thank God!" when Roger, laughing at her vanity, let her go. This time he did not follow. He stood examining the purple velvet case with the ...
— The Lion's Mouse • C. N. Williamson and A. M. Williamson
... firm's commercials suggested the rivetting if iron lasts were used. A Leicester man, in a small way, took up the notion, and made a fortune at it, the real inventor only getting good orders. Ellis's patent boot studs to save the sole, and the Euknemida, or concave-convex fastening springs, are ...
— Showell's Dictionary of Birmingham - A History And Guide Arranged Alphabetically • Thomas T. Harman and Walter Showell
... they build a dam across the stream, at a convenient distance below their habitations. If the current is gentle, the dam is made perfectly straight; but if rapid, it is constructed with a considerable curve, the convex side being towards the upper part of the stream. The materials employed are drift wood, green willows, birch, and poplar; these are placed horizontally, and kept down by mud and stones. So strong do these dams become, that they are capable of resisting a considerable ...
— Afar in the Forest • W.H.G. Kingston
... flattish malleable iron or rubber rings about nine inches in diameter and convex on the upper side, which the players endeavour to loss or pitch so that they will encircle a pin or peg driven into the ground, or to come nearer to this peg than their opponents. The peg is called a "hob." A certain form of quoits is played with horseshoes throughout the country districts ...
— Outdoor Sports and Games • Claude H. Miller
... floor of your "lean-to" lay a thick layer of the "fans" or branches of balsam fir or hemlock, with the convex side up, and the butts of the stems toward the foot of the bed. Now thatch this over with more "fans" by thrusting the butt ends through the first layer at a slight angle toward the head of the bed, so that the soft tips will curve toward the foot of the bed, and be sure to make the head ...
— Camping For Boys • H.W. Gibson
... washed down upon them in streaks and patches; where certain faults in the rock occurred, and bars of iron-yielding stone were seen, the rust had washed down also, so that upon flat facets and concave and convex surfaces a great variety of colour and tint, and light and shade, ...
— The Mermaid - A Love Tale • Lily Dougall
... tough and rather horny plate of epidermal tissue which grows from a depression in the dermis, called the matrix. The back part of the nail is known as the root, the middle convex portion as the body, and the front margin as the free edge (Fig. 123). Material for the growth of the nail is derived from the matrix, which is lined with active epidermal cells and is richly supplied with blood vessels. Cells added to the root cause the nail to grow in length ...
— Physiology and Hygiene for Secondary Schools • Francis M. Walters, A.M.
... interposed in his meditations prayers of the greatest emphasis and fervour. As he was one day in November 1582, engaged in these devout exercises, he says that there appeared to him the angel Uriel at the west window of his Museum, who gave him a translucent stone, or chrystal, of a convex form, that had the quality, when intently surveyed, of presenting apparitions, and even emitting sounds, in consequence of which the observer could hold conversations, ask questions and receive answers from the figures he saw in ...
— Lives of the Necromancers • William Godwin
... various builders, until it is believed that it has almost attained perfection. The boat has no sheer, and sets low in the water. This lack of sheer is supplied by a light canvas apron which is tacked to the deck, and presents, when stretched upward by a stick two feet in length, a convex surface to a head sea. The water which breaks upon the deck, forward of the cockpit, is turned off at the sides of the boat in almost the same manner as a snow-plough clears a railroad track of snow. The apron also protects ...
— Four Months in a Sneak-Box • Nathaniel H. Bishop
... to have them," said Nick a little vaguely, troubled about his sitter's nose, which was somehow Jewish without the convex arch. ...
— The Tragic Muse • Henry James
... represents a double-convex lens, Fig. 6 a double-concave, and Fig. 7 a concavo-convex or meniscus. By these it is seen that a double-convex lens tends to condense the rays of light to a focus, a double-concave to scatter them, and a concavo-convex combines ...
— American Handbook of the Daguerrotype • Samuel D. Humphrey
... three buttons each. When all have "pitched," the boy whose button is nearest the "jack" has first toss, that is, he collects all the pitched buttons in his hand and tosses them; as the buttons lie again on the ground the lads eagerly scan them, for the buttons that lie with their convex side upwards are the spoil of the first "tosser." The remaining buttons are collected by the second, who tosses, and then collects his spoil, and so on till the buttons are all lost and won. The boy whose buttons ...
— London's Underworld • Thomas Holmes
... morning we again set off, and, as much rain had fell in the night, the roads were in a dreadful state. The coach company now consisted of nine passengers inside, one on the top, (which, from its convex form, is a very precarious situation,) and three on the box, besides the coachman, who sat on the knees of the unfortunate middle man,—an uneasy burden, considering the ...
— The Mirror of Literature, Amusement, and Instruction, Vol. 10, - Issue 268, August 11, 1827 • Various
... run of English clothes may not be especially good, but they are, on the other hand, never bad; whereas American freak clothes are distortions like the reflections seen in the convex and concave mirrors of the amusement parks. But not even the leading tailors of Bond Street can excel the supremely good American tailor—whose clothes however are identical in every particular with those of London, and their right to be called "best" is for greater perfection of workmanship and ...
— Etiquette • Emily Post
... of Europe; and whoever has seen that singular spot in Derbyshire belonging to Mr. Port, has seen little Lucca in a convex mirror. Some writer calls it a ring upon the finger of the Emperor, under whose protection it has been hitherto preserved safe from the Grand Duke of Tuscany till these days, in which the interests of those two sovereigns, united by intimacy as by blood and ...
— Observations and Reflections Made in the Course of a Journey through France, Italy, and Germany, Vol. I • Hester Lynch Piozzi
... she cried: "Don't you approach me!"—and he stood checked and abject, one foot planted on the bank, looking up, ready to dart for her in her Oriental dress, flimsy, baggy at the girdle, her arms bare, her fingers clasped before her, making convex the two tassels of the girdle, from her ears depending circles of gold large enough to hoop with, a saffron headdress, stuck backward, showing her hair in front, falling upon a shawl which sheltered her frank recumbent ...
— The Lord of the Sea • M. P. Shiel
... and the same."—Hermes, p. 362. Secondly, with respect to division. Mechanical separations are limited: "But the mind surmounts all power of concretion; and can place in the simplest manner every attribute by itself; convex without concave; colour without superficies; superficies without body; and body without its accidents: as distinctly each one, as though they had never been united. And thus it is, that it penetrates into the recesses of all things, not only dividing them as wholes, into their ...
— The Grammar of English Grammars • Goold Brown
... based on the fact that the earth's shadow when the moon is eclipsed is always convex, may have been known to Pythagoras we cannot say. There is no proof that any of the Italic philosophers made extensive records of astronomical observations as did the Egyptians and Babylonians; but we must constantly recall that the ...
— A History of Science, Volume 1(of 5) • Henry Smith Williams
... was extremely handsome. Susy, who had an auctioneer's eye for values, knew to a fraction the worth of those deep convex stones alternating with small emeralds and brilliants. She was glad to own the bracelet, and enchanted with the effect it produced on her slim wrist; yet, even while admiring it, and rejoicing that it was hers, she had already transmuted it into ...
— The Glimpses of the Moon • Edith Wharton
... the heavenly bodies, with instruments for that purpose. Yet they pretend to say, that many of their early navigators made long voyages, in which they were guided by charts of the route, sometimes drawn on paper, and sometimes on the convex surface of large gourds or pumpkins. From this circumstance, some of the Jesuits have inferred, that such charts must have been more correct than those on flat surfaces. If, indeed, the portion of the convex surface, employed for the purpose, was the segment of a sphere, and occupied a space ...
— 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
... inner surface of the comb was concave, and the outer surface convex, the bees made the cells on the former much smaller, and those on the latter much larger, ...
— The Dawn of Reason - or, Mental Traits in the Lower Animals • James Weir
... trunks of elephants, or such as even mammoths might have carried. One of these immense icicles was directly in front of the aperture; while on the ground just below its point stood up a huge mass of an irregular conical shape, the convex surface of which was coated with ...
— Bruin - The Grand Bear Hunt • Mayne Reid
... bunk. It was a six-foot drop to the cement floor below. The mattress, though irregularly dented and bulged, was upon the whole convex, and not over two feet wide. A vertical fence or bastion, six or eight inches high, along the outer brink of this precipice would have averted the danger of rolling off in the night; but nothing of the sort had been provided. One must remember not to roll, even ...
— The Subterranean Brotherhood • Julian Hawthorne
... Cullingworth, right up to date and ready for anything!' In they come of course, droves of them, and then I arrive and take the money. Here's my luggage!" he pointed to two great hampers in the corner of the room. "Those are glasses, my boy, concave and convex, hundreds of them. I test an eye, fit him on the spot, and send him away shouting. Then I load up a steamer and come home, unless I elect to buy one of their ...
— The Stark Munro Letters • J. Stark Munro
... two cities situated like amphitheatres upon the convex curve of two ideally beautiful harbors. How do you compare them? Each according to your own temper and humor. You have seen hundreds of colored photographs both of Naples and Constantinople. But of the two you will find only Naples exactly like the pictures. Everybody agrees about Naples. ...
— As Seen By Me • Lilian Bell
... and London is grown so infamously bad, that we live here in the same solitude as we should do if cast on a rock in the middle of the ocean, and all the Londoners tell us there is between them and us a great, impassable gulf of mud. There are two roads through the Park, but the new one is so convex and the old one so concave, that by this extreme of faults they agree in the common one of being, like the ...
— A History of English Prose Fiction • Bayard Tuckerman
... it is sealed over with a convex waxen lid. It is now hidden from our sight for about twelve days, when it bites off the cover, and comes forth a perfect bee. The period from the egg to the perfect bee varies from twenty to twenty-four ...
— Mysteries of Bee-keeping Explained • M. Quinby
... fallen on evil days, When science, with remorseless cold precision, Puts out the flame of poetry, and lays Her double-convex lens on fancy's vision. When not a star has longer leave to shine, Unweighed, unanalysed, reduced to gases,— Resolved to something in the chemist's line, By those ...
— The Coming of the Princess and Other Poems • Kate Seymour Maclean
... a dance in the surrounding depreciation. And then than whom is the pleasure. A life was sardine to play. A land was thinner. Than which side was tacit. The noise was a pimple. A convex ...
— Matisse Picasso and Gertrude Stein - With Two Shorter Stories • Gertrude Stein
... their wings to propel themselves through the air, but the mechanism of the act we may not be able to analyze. I do not know how a butterfly propels itself against a breeze with its quill-less wings, but we know that it does do it. As its wings are neither convex nor concave, like a bird's, one would think that the upward and downward strokes would neutralize each other; but they do not. Strong winds often carry them out over large bodies of water; but such a master flyer as the monarch beats its way back to shore, and, indeed, the ...
— Under the Maples • John Burroughs
... beak is bent, convex and sub-compressed, and in some degree obtuse; the tongue is obtuse, triangular and very short, and the feet are ambulatory. As this bird has a great abundance of feathers, it appears considerably thicker than it is. It is, in fact, ...
— A Holiday in the Happy Valley with Pen and Pencil • T. R. Swinburne
... the track, I came at once to the solution of the mystery. I remarked that on the print left by the shoes, the places upon which the head of the nails should have pressed deeper, were, on the contrary, convex, the shoes were, therefore, not fixed by nails; and my suspicions being awakened, I soon spied upon a soft sandy spot, through which the track passed, that there was something trailing from the left hind foot, and I satisfied myself that this last slight mark ...
— Monsieur Violet • Frederick Marryat
... than smile. My wife resembles one of those convex mirrors I have sometimes seen. Every idea I threw out, plain and simple, she reflected back upon me in a thousand little glitters and twinkles of her own; she made my crude conceptions come back to me in such perfectly ...
— Household Papers and Stories • Harriet Beecher Stowe
... cord. A few yards farther on, however, this first net was joined to another, and the tunnel of network was arched over a narrow ditch full of water, and this ditch gradually increased in width as the man led on, and ran in a curve, along whose outer or convex side ...
— Dick o' the Fens - A Tale of the Great East Swamp • George Manville Fenn
... observed in the construction of the buildings. which are usually free from outward ornament; though in some the huge stones are shaped into a convex form with great regularity, and adjusted with such nice precision to one another, that it would be impossible, but for the flutings, to determine the line of junction. In others, the stone is rough, as it ...
— History Of The Conquest Of Peru • William Hickling Prescott
... "is perfectly simple. The ferrule of a knobbed stick wears evenly all round; that of a crooked stick wears on one side—the side opposite the crook. The impressions showed that the ferrule of this one was evenly convex; therefore it had no crook. The other matter is more complicated. To begin with, an artificial foot makes a very characteristic impression, owing to its purely passive elasticity, as I will show you to-morrow. But an artificial leg fitted below the knee is quite secure, whereas ...
— John Thorndyke's Cases • R. Austin Freeman
... with the edge of the copper disc (85.), or with other forms of plates hereafter to be described (101.). These conductors were about four inches long, one third of an inch wide, and one fifth of an inch thick; one end of each was slightly grooved, to allow of more exact adaptation to the somewhat convex edge of the plates, and then amalgamated. Copper wires, one sixteenth of an inch in thickness, attached, in the ordinary manner, by convolutions to the other ends of these conductors, passed away to ...
— Experimental Researches in Electricity, Volume 1 • Michael Faraday
... he. "See these two Chinese vases with convex lids, with the orange ground decorated with gilding. Those are pieces no longer made in China. It is a lost art. And this tete-a-tete decorated with flowers; and this pluvial cope in this case. What a marvel! It is as good as the ...
— Cosmopolis, Complete • Paul Bourget
... Article XI is closely related to most of the other articles particularly to Article I, Of Original Sin, and Article II, Of Free Will and Conversion. Election is to conversion what the concave side of a lens is to the convex. Both correspond to each other in every particular. What God does for and in man when He converts, justifies, sanctifies, preserves, and finally glorifies him, He has in eternity resolved to do,—that is one way in which eternal election may be defined. Synergists and Calvinists, however have always ...
— Historical Introductions to the Symbolical Books of the Evangelical Lutheran Church • Friedrich Bente
... masters dwarfs high natures to their size:— Seen before a convex mirror, elephants ...
— Hindu Literature • Epiphanius Wilson
... "Refractor." As we know it to-day it is the same in principle as his "optick tube," but it is not quite the same in construction. The early object-glass, or large glass at the end, was a single convex lens (see Fig. 8, p. 113, "Galilean"); the modern one is, on the other hand, composed of two lenses fitted together. The attempts to construct large telescopes of the Galilean type met in course of time with a great difficulty. The magnified image of the object observed was not quite pure; ...
— Astronomy of To-day - A Popular Introduction in Non-Technical Language • Cecil G. Dolmage |
