T R O 



towards north and fouth ; fo that when the fun is arrived 

 at either of them, he turns the other way. 



Hence, i. Sinee the declination of the ecliptic is the arc 

 E A, or L D ; EN will be the diftance of the tropics ; 

 which is double the greateft declination. 



2. Wherefore, if the fun's meridian altitude be obferved, 

 both in the winter and fummer folftice, and the latter be 

 fubtrafted from the former ; the remainder will be the dif- 

 tance of the tropics ; half of which is the greateft declina- 

 tion of the ecliptic. 



Tropics, in Geography, are two leffer circles of the globe, 

 drawn parallel to the equator, through the beginnings of 

 Cancer and Capricorn. 



Thefe tropics are the planes of the celcilial tropics, and 

 at the diftance of 23° 29' from the equator, which is the 

 fun's greateft declination. 



Tropic-5W, in Ornithology, a fpecies of the phaeton, 

 called lepturus by BrifTon, on account of the flendernefs of 

 its tail. See Phaeton. 



Tropic Keys, in Geography, fmall idands or rocks among 

 the Virgin iflands, in the Weft Indies, between Great Paf- 

 fage ifland and Porto Rico. 



TROPICAL Winds. See Trade-/F:«Jj and Wind. 



Tropical Tear. See Year. 



TROPINO, in Geography, an oftrog of Ruffia, in the 

 government of Tobolflc, on the river Piazida. N. lat. 72" 

 36'. E. long. 90° 14'. 



TROPISTS, or Tropici, the name of a fea. St. 

 Athanafius, in his letter to Serapion, gives this appellation 

 to the Macedonians, who were alfo called Pneumatomachi 

 in the Eaft, and Patripaffians in the Weft. 



The reafon of the name Tropift was, that they explained 

 the fcripture altogether by tropes and figures of fpeech. 

 ■ The Romanifts alfo gave the appellation Tropifts to thofe 

 of the reformed reUgion ; in regard to their conftruing the 

 words of the eucharift figuratively. 



TROPITES, Tropit.'E, a feft who, according to Phi- 

 laftrius, maintained that the Word was turned or converted 

 into flelh, or into man. 



This opinion they founded on that paflage of St. John, 

 mifunderftood. The Word -was madefejh ; as if it imported, 

 that the Word was converted into ileth ; and not that he 

 was clothed with our fleih and our nature. 



TROPPAU, or Opfau, in Geography, a principality of 

 Silcfia, bounded on the N. by the principality of Oppeln, 

 on the £. by Ratibor and Tefchcn, on the S. and W. by 

 Moravia. The foil is good for corn and pafture, and 

 abounds in fruit. It contains eleven cities or towns. The 

 principality of Troppau once formed a part of Moravia, 

 and with that marquifate came to Bohemia. It is now di- 

 vided between the houfe of Auftria and the king of Prufiia. 



Troppau, or Oppaii, a city of Silefia, and capital of the 

 principahty fo called. It is fituated in a fruitful country 

 on the river Oppa, being walled, and containing an ancient 

 palace of the princes, with three parochial churclies, a col- 

 lege, three convents of monks, a nunnery, and a com- 

 mandery of the order of St. John ; befides which, it is alfo 

 the feat of the regency for the Bohemian part of Silefia. In 

 1758, the greateft part of this town was deilroyed by fire. 

 It belongs to Auftria ; 45 miles S. of Oppeln. N. lat. 49° 

 50'. E. long. 18^ 30'. 



TROPPLOWITZ, a town of Silefia, in the princi- 

 pality of Troppau ; 70 miles N.N.W. of Troppau. N. 

 fat. 50° l'. E. long. 17° 31'. 



TROQUES, a bay on the S.E. part of lake Huron. 



TROSA, a fea-port of Sweden, in Sudcrmanland, on 

 the Baltic ; 18 miles S.W, of Stockholm. 



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TROSBURG, a town of Upper Bavaria ; 13 miles E. 

 of Wafierburg. 



TROSSACHS, a traft of rugged rocks or mountains 

 of ftupendous height, fituated about 10 miles W. from Cal- 

 lander, in the ftiire of Perth, Scotland, and acceflible by a 

 carriage-road. They exhibit an aflemblage of wildnefs and 

 rude grandeur, which fills the mind with the moft fublime 

 conceptions. It feems as if a vaft mountain had been torn 

 in pieces, and frittered down by a convulfion of the earth, 

 and the huge fragments of rocks, woods, and hills, fcat- 

 tered in confufion for two miles on the fides of Loch Ca- 

 therine. A huge column of thefe rocks was fome years ago 

 torn with thunder, and lies in very large blocks near the road. 

 Where there is any foil their fides are covered with aged 

 birch-trees. The fenfible horizon is bounded by thefe trees 

 on the fummit of every hill. On the north fide, the road is 

 cut in fome places through the folid rock, which rifes up- 

 wards of 200 feet perpendicular abo\-e the lake : at others 

 the road is at the foot of lofty cliff^s, and trees are growing 

 where no earth is to be found. — Beauties of Scotland, 

 vol. iv. Perthftiire. Gazetteer of Scotland, 1806. 



TROSSULI, among the Romans, a name given by 

 fome to the guards that attended the kings of Rome, other- 

 wife called celeres. 



TROSSULUM, in Ancient Geography, a town of Italy, 

 in Etruria, in the vicinity of the country of the Volfci, ac- 

 cordmg to Pliny. 



TROT, in the Manege, one of the natural paces of a 

 horfe, performed with two legs in the .air, and two on the 

 ground, at the fame time, crofswife, and continuing fo al- 

 ternately, to raife the liind-lcg of one fide, and the fore-leg 

 of tlie other fide at once ; leaving the other hind and fore- 

 leg upon the ground till the former come down. 



This aftion of his legs is the fame as when he walks, ex- 

 cept that in the trot his m.otions are more quick. 



In this motion, the nearer the horfe takes his limbs from 

 the ground, the opener, the evener, and the fhorter his trot 

 will be. If he takes up his feet flovenly, it is a fign of 

 ftumbling and lamenefs ; if he tread narrow, or crofs, it 

 betokens interfering or falling ; if he tread long, it fhews 

 over-reaching ; it he fteps uneven, he indicates toil and 

 wearinefs. 



Three qualities are efTentially neccffary to make the trot 

 ufeful. It ought to be extended, fupple, and even or 

 equal ; thefe three qualities mutually depend upon each 

 other ; fo that you cannot pafs to the fupple trot, without 

 having firft worked upon the extended trot ; and you can 

 never arrive at the even and equal trot, without having prac- 

 tifed the fupple. The extended trot is that in which the 

 horfe trots out without retaining himfelf, being quite 

 ftraight, and going dircAly forwards ; and this, confe- 

 quently, is the kind of trot with which you muft begin. 

 'The fupple trot is that in which the horfe, at every motion 

 he makes, bends and plays all his joints, ^'/^. thofe of his 

 fhoulders, his knees and feet, which no colts, or raw horfes, 

 can execute, who have not had their limbs fuppled by cx- 

 ercife, and who <llways trot with a furprifing ftiffhefs and 

 aukwardnefs, without the leaft fpring or play in their joints. 

 The even or equal trot is that in which the horfe makes all 

 his limbs and joints move fo equally and exaftly, and his 

 legs never cover more ground one than the other, nor at 

 one time more than another. To do this, the horfe muft 

 neceifariiy unite and collcft all his ftrength, and, if the ex- 

 preflion may be allowed, diftribute it equally througli.all his 

 joints. To go from the extended trot to the fupple, you 

 muft gently and by degrees hold in your horfe ; and when 

 by excrcile he has attained fulficicnt cafe and fupplenefs to 



manage 



