At first these rare materials were used with a degree of moderation, chiefly in the form of mosaics of small discs or cubes for the pavements of halls and courts.
A round of grapeshot consists of three tiers of cast-iron balls arranged, generally three in a tier, between four parallel iron discs connected together by a central wrought-iron pin.
Lithotrya cauta, star-shaped discs of hard chitine, supported on a peduncle of the same substance, taken from the lower exterior surface of the peduncle, very greatly magnified.
As soon as the animal has got to its full depth, the burrow increases only in diameter, and during this process the linear row of discs is ground away and lost; a cup is then formed.
Basal calcareous discs thin, plainly marked exteriorly by concentric lines of growth, and covered by the usual yellow membrane, including the horny, spindle-shaped bodies.
I have seen one row of discs an inch in length, but the upper discsare always worn away by the friction of the calcified serrated scales on the peduncle.
Before the cup is formed, there is a row of small, flat discs (fig.
A piece of rock bored in two directions by Lithotrya dorsalis, with the calcareous basal discs in the upper cavity, serving as a bridge for crossing an old cavity.
Later he connected cells in series (voltaic pile) which consisted of alternate layers of zinc and copper discs separated by flannel discs soaked in brine or acid which produced a higher electric pressure (voltage).
One of them was a machine consisting of two glass discs revolving in opposite directions which produced high voltage charges through friction.
He adjusted the pressure discs over his ears by twisting a thumbscrew on his helmet, and the pounding of his ear-drums ceased.
The beak opened sharply to drop its unconscious burden upon the deck, and the watching man, petrified with horror, saw within the gaping maw great sucking discs and beyond them a brilliant glow.
The sucking discs cupped and wrinkled in dread readiness in the fleshy, toothless opening.
This, too, evidently a polywog, was blind, with whitened discs for eyes, but it slid along at a rapid rate because of its size.
Asher screamed and clamped his ear discs down tight.
A ring below the iris diaphragm permits the insertion of glass discs for the purpose of modifying the light.
Ground or colored glass discs may be inserted above the iris diaphragm if modification of the light is desired.
If we rub and grind them as I propose, one of the discs will be rounded and the other hollowed exactly as I wish.
This proved also to have borne the journey well, and Tom looked from the two great discs to his uncle.
Tom obeyed, and helped his uncle to lift one of the glass discs on to the top of the cask, where it was easily fixed by screwing three little brick-shaped pieces of wood on to the head close against the sides of the glass.
The case with the two discs came down this afternoon while you were out with the chair.
I wish to goodness they had been discs of glass instead of stone.
Round the discsof the drum were wrought-iron straps; these, when tightened by levers, formed brakes by which the revolution of the drum could be retarded.
On this are grounddiscs of steel, lubricated with oil, whereon the gate rests and turns.
These discs are then highly polished on the inner surface with the top of a jvari stalk called danthal.
The sexual organs are often produced in these forms upon special branches (G), or the antheridia may be sunk in discs on the upper side of the stem (D, an.
Not infrequently the spore fruits are to be met with flat discs of a reddish brown color, two or three millimetres in diameter, and closely resembling a small cup fungus.
Many conventional patterns of to-day are descendants of the lattice-work of Chinese art, and of the zigzags, lines, and discs of barbarous primitive ornamentation.
Gold discs of many sizes, and worked with a variety of patterns, are found equally in the tomb of the warrior at Mycenæ, and in Ashantee, accompanied in both cases with gold masks covering the faces of the dead.
The discs or buttons remind us of those found in Etruscan tombs, though the execution of these last is more advanced.
The effect of the discs is to tear or bruise the fibres rather than to cut them.
A conical refiner having in addition at its large end a pair of grinding discsfitted with knives and rotating vertically.
A beating engine in which the pulp is beaten between twodiscs rotating vertically, the pulp being brought between the discs through the hollow shaft of one of the discs.
A special form of refining engine in which the pulp is subjected to the action of discs rotating vertically, the knives being arranged radially on the disc.
All the other markers were busy flourishing discs or flags; only Number Seven remained cold and aloof.
He collects their identity discs and marks their graves.
When the metal discs were fired by tunnelling officers the sound of thousands of our men cheering with the wild madness of enthusiasm could be heard even above the deafening uproar of the explosions.
The males of certain South American butterflies have tufts of hair on the margins of the wings, and horny excrescences on the discs of the posterior pair.
Woody tubes of Araucaria excelsa--double and triple and alternate rows of discs 74 65.
The nasturtium leaves by the garden walk had gone rotten in a frost, and the gay green discs had given place to the first black flags of winter, hung on flaccid stalks, pinched at the neck.
As seen by transmitted light, and either in front or in profile, the discs are of a rich amber colour, translucent and structureless, except the pores above referred to.
Macrospores, in the form of discs or globes, smooth and thick-walled, the walls penetrated by minute radiating pores.
FN] Trunks of coniferous trees of the species Dadoxylon Acadianum, having wide wood-cells with three or more series of discs and complex medullary rays, become characteristic.
Witham in 1833 described several Carboniferous species of pine-wood, under the generic name Pinites, separating under the name Pitus species which appeared to have the discs on the cell-walls separate and in transverse lines.
We may under these names speak of their detached discsas macrospores and of their cellular envelopes as sporocarps.
Wethered has shown that the discsdescribed by Huxley and Newton in the Better-bed coal occur in the earthy or fragmentary layers, as distinguished from the pure coal.
We could not repair that, though we did succeed at last in lifting the great discs into place.
The shining dots of their ships and the discs of the forts were visible from Earth save for the air's distortion.
These discs act like the discsof the electrophorus.
The charges induced upon the discs are taken off by two metal combs whose points are held close to the revolving disc.
The brushes held by a rod touch the discs at just the right time to take off the repelled charge.
All manner of discshad to be tried, some smaller and thinner than a dime and others of steel boiler-plate as heavy as the shield of Achilles.
He seemed to be in a big underground cave, which was dimly lighted by dozens of big round discsthat looked like moons.
It was softly lighted by means of delicate black discs let into the wall and as transparent as glass.
The professor led the way, his armour-clad figure looming up black and gigantic against the two overlappingdiscs of illuminated water before him, and the other three followed closely in his footsteps.
If it is necessary to make a cask, the pieces forming the discs used for the heads should be dowelled together, with a bit of pith of reed, or other caulking material between them, and the circumference must be thinned off to an obtuse edge.
In Mexico, Chili, Tartary and elsewhere, rough discs of timber (Fig.
On the Zambesi, near Logier Hill, we have seen the native women frequently washing a kind of cassava, cut into discs across the grain so thin as to leave the fibre as short as possible.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "discs" in a variety of sentences. We hope that you will now be able to make sentences using this word.
