Page:Encyclopædia Britannica, first edition - Volume I, A-B.pdf/624

 B A L (516 ) B A L tudinal, and fomewhat carinated ; and the tail-fin is under each wing of the two-winged flies; thefe ferve forked. It is found at Afcenfion Ifland. 8. The rin- to poife the body of the fly. geris, has a triradiated back-fin ; there are three folds BALLAST, a quantity of (tones, gravel, or fand, laid on each fide of the head, and the tail-fin is forked. in a (hip’s hold, to make her fink to a certain depth into the water, and fail upright. The ballad is fomeThis fpecies is likewife found at Afcenfion Ifland. BALIVO amovendo, in law, was a writ for removing a times one quarter, one third, or one half, according bailiff from his office, for want of having fufficient to the difference of the bulk of the (hip. Flat vefland in his bailiwick to anfwer the king and his peo- fels require the mod ballad. Ships are faid to be in ple, according to the ftatute of Weftminfter, 2 reg. ballad, when they have no other loading. Maders of vefiels are obliged to declare the quantity of ballad Orig. 78. BALK, among builders, is fometimes ufed for the fum- they bear, and to unload it at certain places. They mer-beam of a houfe ;'fometimes for the poles and are prohibited unloading their ballad in havens, roads, rafters, which fupport the roofs of barns, fee.; and <bc. the negleCt of which has ruined many excellent ports. fometimes for the beams ufed in making fea-holds. Balk, in agriculture, denotes a ridge, or bank between BALLASTAGE, or Lastage. See Lastage. BALLERUS, in ichthyology, the trivial name of a two furrows. BALKE, or Balk he, a city of Afia, in the Ufbec fpecies of cyprinus. See Cyprinus. Tartary, fituated upon the river Dilhas, in 68° E.lon. BALLET. See Ballad. BALLIAGE, or Bailiage. See Bailiage. and 36° 40' N. lat. 11 miles BALL, in a general fenfe, a fpherical and round body, BALLICONNEL, a town of Ireland, about whether it be fo naturally, or turned into that figure north-ead o( Cavan, 7° 50' W. long. J40 6' N. lat. by the hand of an artill: Thus we fay, a tennis-ball, BALTIMORE, a town of Leinder in Ireland, furrounded entirely with a marffi. foot-ball, cotton-ball, <bc. Ball, in the military art, comprehends all forts of bul- BALLISHANNON, a large town of the county of lets for fire-arms, from the cannon to the piffol. See Donnegal, and province ofUlder in Ireland, fituated about ten miles fouth of the town of Donnegal, in Gunnery. Cannon-balls are of iron; mufquet-balls, piftol-balls, 8° 30' W. long, and 540 2$' N. lat. $v. are of lead. The experiment has been tried of iron BALLlSTA, in antiquity, a military machine ufed by bails for piftols and fufees, but they are jufliy reject- the ancients in befieging cities, to throw large dones, ed, not only on account of their lightnefs, which pre- darts, and javelins. It refembled our crofs. bows, though much larger vents then from flying ftrait, but becaufe they are apt and fuperior in force. to furrow the barrel. From this engine, dones of a fize not lefs than Ball and focket is an inftrument made of brafs, with a perpetual ferew, fo as to move horizontally, verti- mill-dones, were thrown with fo much violence, as to cally, and obliquely; and is generally ufed for the ma- da(h whole houfes in pieces at a blow. It is deferibed thus: A round iron cylinder was fadened between two naging of furveying, and aftronomical inftruments. planks, from which reached a hollow fquare beam, Ball of a pendulum, the fame with bob. See Bob, placed crofs-wife, and fadened with cords, to which Ball, among printers. See Printing. Pj^-Ball, the Engliffi name of the lycoperdon. See were added ferews; at one end of this dood the ingineer, who put a wooden (haft with a big head into Lycoperdon. BALLAD, or Ballet, a king of fong, adapted to the the cavity of the beam; this done, two men bent tho capacity of the lower clafs of people; who, being engine by drawing fome wheels : When the top of the mightily taken with this fpecies of poetry, are thereby head was drawn to the outmod end of the cords, the not a little influenced in the conduft of their lives. (haft was driven out of the ballida, fsc. Hence we find, that feditious and defigning men never BALLISTES, in ichthyology. See Balistes. fail to fpread ballads among the people, with a view BALLOON, or Ballon, in a general fenfe, fignifies any fpherical hollow body, of whatever matter it be to gain them over to their fide. BALLANCE, or Balance, in mechanics, one of the compofed, or for whatever purpofes it be defigned. fimple powers, which ferves to find out the equality or Thus, with chemids, balloon denotes a round (hortdifference of weight in heavy bodies. See Mecha- necked veffel, ufed to receive what is diddled by means of fire ; in architeriure, a round globe on the top of a nics. pillar; and among engineers, a kind of bomb made of Hydrofiatical HSb.VLKKC'E. See Hydrostatics. Ballance of trade, in commerce, the equality between pade-board, and played off in fire-works, either in the the value of the commodities bought of foreigners, and air or on the water, in imitation of a real bomb. Balloon, in the French paper trade, is a term for a the value of the native productions tranfported into oquantity of paper, containing 24 reams. It is alfo ther nations. See Commerce. Ballance of a clock, or •watch. See Clock and the name of a fort o^ brigantine ufed in the kingcom of Siam. Watch making. Ballon, in geography, a town of France, in the dioBallance fijk. See Squalus. BALLANGER, in the hiftory of infeCts, a flyle, or ob- cefe of Mans, upon the banks of the Orne, jo7 E.lon.; long body, ending rin a protuberance or head, found 48° 10' N. lat. BALLOTA,