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lUe dillance of the latbs, which, when fix inches, requires 

 800 : when fix and a half inclies, 740 ; when feven inches, 

 690 ; when feven and a half inehes^ 640 ; and when eight 

 inches, 600 tyles. 



Tyle, in AJfaying. See Tile. 



TYLER, one that covers or paves with tyles. 



Tylers and bricklayers were incorporated 10 Eliz. under 

 the name of " Mailer and Wardens of rfie Society of Free- 

 men of the Myllery and Art of Tylers and Bricklayers." 

 See Company. 



Tylers, Great, in Geography, a fnnall ifland. in the 

 Gulf of Finland. N. lat. 59° 50'. E. long. 2f 12'. 



Tylers, Little, a fmall ifland in the Gulf of Finland. 

 N. lat. 59° 48'. E. long. 26^ 54'. 



TYLERY. See Tuilerie. 



TYLIS, in Ancient Geography, a town of Thrace, on 

 mount Haemus. 



TYLOPHORA, in Botany, from ti/Ao,-, a -wart or tuber- 

 cle, aad $£§».■, to bear, apparently in reference to the five flefhy 

 tumid leaves of the crown of the flower; though no ex- 

 planation is given by the author. — Brown Tr. of the Wern. 

 Soc. V. I. 28. Prodr. Nov. Holl. v. i. 460. — Clafs and 

 order, Pentandria Digynia. Nat. Ord. Cotitorts, Linn. 

 Apocynex, JufT. Afclepiadets, Brown. 



Eif. Ch. Corolla wheel-ihaped, in five deep fegments. 

 Crown of the ftamens of five deprelTed flefhy leaves, whofe 

 inner angle is fimple, without a tooth. Anthers terminated 

 by a membrane ; maffes of pollen ereft, attached by their 

 bafe, with fimple margins. Stigma pointlefs. Follicles 

 fmooth. Seeds comofc. 



The plants of this genus have twining, either herbaceous 

 or fiirubby, Jiems. Leaves oppofite, membranous, flat. 

 Umbels Handing between the footjlalks. Flowers for the 

 moil part fmall. Four of the i^pecies are natives of New 

 Holland, chiefly within the tropic, but extending as far as 

 thirty-three degrees of fouth latitude. As many are found 

 either in the Eaft Indies or the equinodlial parts of Africa, 

 but of thefe four latter, none of them defcribed in any 

 botanical work, the learned author has favoured us with no 

 account. We can therefore merely give the charafters of 

 the New-Holland fpecies, from his Prodromus. It only 

 remains for us to obferve, that Tylophora comes very near 

 HoYA, fee that article ; differing fcarcely in any part of 

 the elfential charafter, except the want of a tooth at the 

 inner angle of each leaf of the crown ; and with refpeft to 

 habit, diilinguifhed from one only of the two fpecies of that 

 genus, by having membranous, not flefhy, leaves. 



1. T . grandijlora. Large-flowered Tylophora. Br. n. I. 

 — Umbels nearly felfile, fimple, of few flowers ; their partial 

 ftalks fmooth. Leaves heart-fhaped, ovate, acute, downy 

 as well as the branches. — Native of Port Jackfon, New 

 South Wales. 



2. T. barbata. Bearded Tylophora. Br. n. 2 Umbels 



moHly in pairs ; their common flialk fhorter than the leaves. 



Corolla bearded. Leaves ovate, acute, very fmooth 



Gathered near Port Jackfon, by Ivlr. Brown himfelf. 



%■ 'Y . fiexuoja. Zigzag Tylophora. Br. n. 3 Umbels 



alternate, fefTile on a zigzag common ftalk. Leaves heart- 

 fhaped, oblong, veiny. Corolla beardlefs Found by 



Mr. Brown, in the tropical part of New Holland. 



4. T. paniculata. Panicled Tylophora. Br. n. 4 



Panicles forked. Segments of the corolla ligulate upwards. 

 Leaves ovate, pointed, nearly fmooth ; the lowermoft fome- 

 what heart-fhaped.— Difeovered in the neighbourhood of 

 Port Jackfon, by Mr. Ferdinand Bauer, the botanical com- 

 panion of Mr. Brown, to whofe exquifite pencil the duty of 

 perpetuating the acquifitions of their hazardous expedition, 



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undertaken at the national expence, was entruAed. Yet 

 fo little has the engagement to the public been fulfilled, 

 that except a fmall but exquifite fafciculus of plates, and 

 the excellent but incomplete publications of Mr. Brown, all 

 the difcoveries of thefe naturalifts have as yet remained 

 fruitlefs : not, certainly, for want of their ability or incli- 

 nation to complete what they have undertaken, but becaufe, 

 as we prefume, the due injunftions, as well as the neceffary 

 aids, have been withheld. 



TYLOS, in Ornithology, a name by which many authors 

 have called the tvrdus iliacus, or redwing. 



TYLOTICA, medicines fuppofed to promote the form- 

 ation of callus. 



TYLSEN, in Geography, a town of Brandenberg, in thp 

 Old Mark, on the Dichme ; 5 miles S.W. of Salzwedel. 



TYLUS, in Ancient Geography, a town of the Peloponne- 

 fus, on the coafl of the gulf of Meffenia, between the ifles 

 Tyrides and the town of Leuftrum, according to Strabo ; 

 it is called CEtyle by Paufanias, who places it between the 

 port of Meffa and Talama. — Alfo, an ifland of the Perfian 

 gulf, at the diflance of twenty-four hours' navigation from 



the mouth of the Euphrates, according to Arrian Alfo, 



Tylus minor, diftant 10 miles in the fame gulf from the 

 greater Tylus ; named Arados by Strabo, and Arathos by 

 Ptolemy. 



TYLWITH, in matters of Heraldry and De/ant, is 

 fometimes ufed for a tribe or family branching out of 

 another, which the modern heralds more ufually call the 

 fecond or third houfe. 



TYLYDAN, in Geography, a river on the S. coafl of the 

 ifland of Java, which runs into the fea, S. lat. 7° 38'. E. 

 long. 108° 47'. 



TYMARA, a town of Hindooftan, in Bahar ; 25 miles 

 E. of Chuta Nagpour. 



TYMBALES, Fr. kettle-drums, inftruments of per- 

 cuflion, confifling of two metalline globes covered with 

 parchment ; beaten with two drum-flicks, in the form of 

 round hammers or mallets, from eight to nine inches long. 

 The tone is fhort and dull. They are tuned 4ths to each 

 other. The fmallefl drum produces the key-note of the 

 compofitions in which they are employed, and the largefl, 

 the 4th below ; as in the key of C the tones are thefe : 



S 



1 



There are braces, by which the pitch 



can be raifed or lowered at pleafure. See Drum, and 

 KETTLE-Z)ram. 



TYMBER of Skins. See Timber. 



TYMBRA, in Ancient Geography, a town of Afia, in 

 Pifidia. 



TYMBRE, Fr. in Mujic, is a term ufed to exprefs that 

 quality of tone or found which renders a voice or inflrument 

 rough or fmooth, harfh or f%veet, coarfe or mellow in tone. 

 Sweet-toned inftruments feem always feeble, and harfh 

 toned too loud. A perfeft voice or inftrument would be 

 that which united force with fweetnefs. The quality of 

 tone generally determines our idea of its force. The voice 

 of Manzoli, at once extremely powerful and extremely 

 fweet, was miraculous. 



There are perhaps no inftruments that can be at once 

 loud and fweet, except thofe of the violin family, played 

 with a bow ; as the violin, tenor, and violoncello. 



TYMENjEUM, in Ancient Geography, a mountain of 

 Afia, in the vicinity of Phrygia. 



TYMES, a town of Africa, in Libya. 



TYMIUM, a fmall town of Afia, in Phrygia. 



TYM- 



