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mailers of Conftaiitiiiople, this principality, or, as it is 

 fometimes called, empire, continued till the year 1462, 

 when it was taken by Mahomet II., who carried David 

 Comnenes and all his family prifoners to Conftantinople, 

 where they were moftly put to death. The town of Tre- 

 bifond is built on the fea-fide, at the foot of a little hill, 

 pretty fteep ; its walls are alnioft fquare, high embattled, 

 and, though they are not of the firll ages, yet it is very 

 probable they (land upon the foundations of the ancient in- 

 clofure, which got this town the name of " Trapezium," 

 or " Trapezus." The prefent walls are built of the ruins 

 of the ancient edifices, as appears by old pieces of marble 

 fet in feveral parts, and whofe infcriptions are not legible, 

 becaufe they are too high. The town is large, and not well 

 peopled ; there are more woods and gardens in it than 

 houfes ; and thofe houfes that are there, though well built, 

 are but one ilory high. The caftle, which is pretty large, 

 but very much neglefted, is fituated upon a flat rock, and 

 its ditches are cut in the rock. The iiifcription that is on 

 the gate of this caftle, the arch whereof is a femi-circle, 

 fliews that the emperor Juftinian repaired the edifices of the 

 town. The port of Trebifond, called " Platana," is to the 

 eaft of the town. The emperor Adrian caufed it to be re- 

 paired, as we are informed by Arrian. This port is now 

 proper for nothing but faiques. The mole which the 

 Genoefe are faid to have built there is almoft deftroyed, and 

 the Turks give themfelves very little trouble about repairing 

 fuch works; 170 miles N.N.E. of Sivas. N. lat. 41° i'. 

 E. long. 39° 40'. 



TREBITSCH, or Trebitz, a town of Moravia, in 

 the circle of Iglau, on the Iglawa, with confiderable manu- 

 faftures of cloth, iron, glafs, &c. ; 20 miles S.E. of Iglau. 

 N. lat. ^<f 14'. E. long. 15° 50'. 



TREBITZ, a town of Saxony; 3 miles N.N.W. of 

 Schmiedeberg. 



TREBIUS, in Ichthyology, a name given by Joannes 

 Cuba, and fome other writers, to the fifii called phych by 

 Ariilotle, iElian, and Pliny. 



TREI5LE, in Muftc, the higheft or acutefl of the four 

 parts in fympliony, or that which is heard the cleared and 

 fhrilleft in a concert. 



In the like fenfe we fay, a treble viohn, treble hautboy, 

 &c. 



In vocal mufic, the treble is ufually committed to boys 

 and girls. Their part is the treble. 



The treble is divided into firft or higheft treble, and 

 fecond or bafe treble. The half treble is the fame with the 

 counter-teucr. 



TREBLIZ, in Geography, a town of Bohemia, in the 

 circle of Leitmeritz ; 10 miles S.W. of Leitmeritz. 



TREBNITZ, a town of Silefia, in the principality of 

 Oels ; 12 miles N. of Breflaw. N. lat. 51° 18'. E. long. 

 17° 2'. 



TREBNIZ, a town of Bohemia, in the circle of Leit- 

 meritz ; 6 miles S.W. of Leitmeritz. 



TREBOWE. See Tribau. 



TREBSCHEN, a town of Brandenburg, in the New 

 Mark; 6 miles S.E. of Zulichau. 



TREBSEN, a town of Saxon}', in the circle of Leipfic, 

 on the Muldau ; 26 miles W. of Meifien. N. lat. 51° 16'. 

 E. long. 1 2° 40'. 



TREBUCHET, Trebucket, or Tnhuchetum, a 

 tumbler, ducking, or cucking-ftool. See Cucking-stool 

 and Scolds. 



Tkebuchet, in Artillery, a machine for throwiag ftones, 

 for whicli purpofe a fling was fometimes fixed to it : it 

 atled by means of a great weight faftenej to the fliort arm 



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of a lever, which being let fall, raifed the end of the long 

 arm with a great velocity. 



TREBULA MUTUSCA, in Ancient Geography, a town 

 placed by Strabo and Pliny among the Sabines, the exiftence 

 of which is teftified by many infcriptions. Virgil recog- 

 nizes it for its ohves, which perhaps might have occafioned 

 its being called " Ohveto." 



TREBULA SUFFENATA, a town of Italy, in the 

 Sabine teriytory. It is fuppofed to have been fituated in 

 the valley of Turano, probably at the place called Rocca 

 Sinibalda. 



TREBURG, in Geography, a town of Hefle-Darmftadt ; 

 10 miles W. of Darmftadt. 



TREBUXENA, a town of Spain, in the kingdom of 

 Seville ; 1 2 miles from Xeres de la Frontera. 



TRECASE, a town of Naples, in the province of 

 Otranto ; 5 miles E.N.E. of Aleflano. 



TRECASSES, or Tricasii, in Ancient Geography, a 

 people of Celtic or Lyonnefe Gaul, according to Phny and 

 Ptolemy ; fubjed, in the time of Caefar, to the city of Sens 

 (civitas Senonum), which was very powerful. 



TRECATE, in Geography, a town of Italy, in the de- 

 partment of the Olona ; 5 miles E. of Novara. 



TRECCHINA, a town of Naples, in Bafilicata ; 36 

 miles S. of Potenza. 



TRECENTA, a town of Italy, in the department of 



the Mincio ; 25 miles E.S.E. of Mantua Alfo, a town 



of Italy, in the department of the Lower Po ; 12 miles 

 N.N.W. of Ferrara. 



TRECHEDIPNA, r^'x^'^~^^'> fonned of T^r;5;iK, I run, 

 and )iimnv, a /upper, in Antiquity, a kind of livery, or dif- 

 tinguifhing habits worn by parafites ; the wearing of which 

 was a fnfficient paflport to the tables of their patrons whofe 

 livery it was. 



TRECHINIA, or Trachinia, in Ancient Geography, 

 a fmall country of Theflaly, occupying the whole moun- 

 tainous part weft of the Maliac gulf, between the ri^er 

 Sperchiiis to the north and mount Oeta to the fouth. Near 

 it was Heraclea Trachinia. 



TRECHIS. See Trachis. 



TRECHON, one of the many names by which the 

 chemical writers have called quickfilver. 



TRECOTHIC, in Geography, a townfhip of Nevir 

 Hampfliire ; 65 miles N.W. of Portfmouth. 



TREDDLE, or Treadle, C.hala%a, in Natural Hlf- 

 tory, a part of an egg. See Ciialaza. 



TREDECILE. See Aspect. 



TREE, Arbor, the firft and largeft of the vegetable 

 kind, confilling of a fingle trunk, out of which fpring forth 

 branches and leaves. 



Mr. Ray diftinguifties the trees and flirubs of our native 

 growth of England into, I. Such as ha-ue their Jloiver dlf- 

 joined and remote from the fruit : which are, 



1. The nuciferous trees, or fuch as bear nuts: as the 

 walnut-tree, the hazle-nut-tree, the beech, the chefnut, and 

 the common oak. 



2. Coniferous trees, or luch as bear a fquamous or fcaly 

 fruit, of a conical figure, and a woody or hard fubftance, 

 in which are many feeds, which, when they are ripe, the 

 cone opens or gapes in all its feveral cells or pai-titions, and 

 lets drop out: of this kind are the Scotch'firs, male and 

 female ; the pine, which, in our gardens, is called the Scotch 

 fir ; the common alder-tree, and the birch-tree. 



Thefe trees are alfo called refinifcrous, by reafon that 

 coniferoua trees are generally covered with a biuk that 

 abounds in refin. 



3. Baceiferous 



