T II I 



aneks to both, conncaing them, and (hutting In the wcflrrn 

 i\di- of the tMc land, is aiu.thc-r chain, call«l the Beloor- 

 Taueh ; forming the callern Hmit of Shognaun the anc.ent 

 SoRdiana, and tlms coinciding with the Montrs Comedorun. 

 AecordinK to the writer now cited, the " Scyth.a extra 

 Imaum" of Ptolemv muft be Great Thibet, w.th an extent 

 of Tartary ftretching indefinitely northwards. Atter 

 Scvthia, he fays, comes the famous Serica ; and if Great 

 Thibet be Scythia extra Imaum, the next great country 

 muft be China, which he concludes from a variety of cir- 

 cumftances to be Serica. This writer thinks Piakerton's 

 hvpothefis, mentioned under Serica, of its being Little 

 Bucharia, altogether inadmiflible. See Murray's Ancient 

 Geography of Central and E:il!ern Afia. 



THICKET, a clofe knot or tuft of trees ; a clofe wood, 

 &c. in any field or inclofure of any kind. 



Thickets, i.n Gardening, a fort of clofe plantations 

 of trees and (hrubs, in pleafurc-grounds, parks, &c. They 

 are defigned for different pnrpoles, as fometimes to repel the 

 force of tempeftuous and cold cutting winds, either from the 

 habitation, or fome particular part of the garden ; or to form 

 places of fliade and retirement in fummer, having fpaces for 

 walks, receffes, &c. under the umbrage of the trees, and 

 occafionally to conceal from view any unfightly or difagree- 

 able obicft, and alfo fometimes to form a fcreen or blind 

 arranged towards fome outward boundary. 



They are fometimes planted wlioUy of the large tree 

 kinds, five or fix to eight or ten feet afiinder, fome in regular 

 lines, like a clofe grove, or more generally in a fort of pro- 

 mifcuous planting, but with fome degree of order in the 

 dillances : they are alfo often compofed of various trees and 

 fhrubs together, to effeifl a more full, clofe growth below and 

 above, and to difplay a greater diverfity in the plantation, by 

 difpofing the various (lirubs properly between the larger trees, 

 in*fome order of gradation, the lowed towards the front, and 

 the taller growths backward, fo as to form a fort of clofe 

 underwood thicket below, while the trees run up and form 

 a thicketty growth above ; and fometimes they are formed 

 wholly of (lirubs of different forts and degrees of growth, 

 from the lowed placed forward, to the tallell behind. 



They are fometimes, too, formed wholly of particular 

 forts of trees difpofed feparalely in diftinft plantations, as of 

 elm, a(h, beech, poplar, alder, willow, &c. 



The planting of thicket plantations ffiould be effefted 

 with young trees of from four, five, or fix, to eight or ten 

 feet growth, and the Ihrub kinds proportionally ; in all of 

 which the planting may be performed in the common feafons 

 of autumn, winter, and fpring. 



In the culture of thicket plantations, little is required but 

 that of keeping them clear from large overbearing weeds, 



while the trees and (hrubs are in young fmall growth. 



Thickets arc now much lefs in ufe than was formerly the 



cafe in ornamental gardening, and pleafure-ground planting; 



they maj-, however, on fome occafions, be introduced with 



good effeft. 



THICKON, in Geography, a river of Pennfylvania, which 



runs into the Delaware, N. lat. 40° 25'. W. long. 75° 8'. 

 THICKSTUFF, a name for fided timber exceeding 



four inches in thicknefs, but not being more than twelve 



inches in thicknefs. 



THIEBLEMONT, in Geography, a town of France, in 



the department of the Marne ; 8 miles E.S.E. of Vitry le 



Eranciis. 



THIEL, or TiF.L, a city or town of Holland, in the 



department of Guelderland, fituatcd on the north fide of the 



Wahal, in a fmall ifland called Tuler-IVeert. In one of its 



fauxbourgs, called Sanlivych; which is well fortified, is a 



T H I 



ftrong citadel : the fortifications were deffroycd in the ye.-ir 

 1674, by the French, who had made tliemfelvcs mailers of 

 the place about two years before, and have been fince re- 

 paired. In the year 1528, it was befieged by the Spaniards, 

 when Charles V. was at wai- with the duke of Gueldres ; 

 but they were compelled to raife the fiege, through the 

 brave refiftance of the citizens. The country about it is 

 mar(hy, and the air reckoned unwholefome. The fortifi- 

 cations are deftroyed ; 18 miles N.N.E. of Bois-le-Duc. 



THIELLE, a town of the county of Neufchatel, be- 

 tween the lake of Bienne and the lake of Neufchatel ; y 

 miles N.E. of Neufchatel. — Alfo, a river of Switzerland, 

 which rifes in the Vaudois, paffes through the lakes of 

 Neufchatel and Bienne, and runs into the Aar, 3 miles below 

 Buren. 



THIELLEN, a town of Switzerland, in the canton of 

 Uri ; 2 miles N.W. of Altorff. 



THIELT, a town of France, in the department of the 

 Lys ; 10 miles N. of Courtray. 



THIENE, a town of Italy, in the Vicentin ; 9 miles 

 N.W. of Vicenza. 



THIERS, John Baptist, in Biogmphy, a divine, was 

 born at Ch^rtres about the year 1636, and became a batche- 

 lor of the Sorbonne, profeffor in the college of Du Pleflis 

 at Paris, and cure of Chauprend, in the diocefe of Chartres. 

 Being arrefted in confequence of a difpute with the clergy 

 of Chartres, and a fatire againft one of ihem, he efcaped by 

 a ftratagem, and found refuge with the bifhop of Mans, who 

 rrave him the cure of Vibraie, where he died in February, 

 1703. His works are numerous, freely written, and on 

 fingular fubjefts ; but we refer for an account of them to 

 Moreri, the Nouv. Dift. Hiftor. and Gen. Biog. 



THIERS, in Geography, a town of France, and principal 

 place of a diftriiS, in the department of the Puy-de-D6me ; 

 here are manufaftures of cutlery, playing-card», paper, 

 thread, &c. ; 21 miles S.E. of Gannat. N. lat. 45° 52'. 

 E. long. 3° 38'. 



THIERSHEIM, a town of Germany, in the princi- 

 pality of Culmbach ; 6 miles N.E. of Wonfiedel. 



THIER STEIN, a towii of Germany, in the principality 

 of Culmbach, on the Eger; 5 miles N.E. of Wonfiedel. 



THIE-WEY-ARA-YETH Lake, a lake of North 

 America. N. lat. 61° 20'. W. long. 106° 30'. 



THIGH, Femur, a part of the body of men, quad- 

 rupeds, and birds, between the leg and the trunk. See 

 Extremities. 



We have an account in the Philofophical Tranfaftions of 

 a large piece of a young man's thigh-bone being taken out, 

 and the place fo well fupplied by a callus, that he walked 

 ftraight. See N° 461. feft. 2. 



TniGH-Bone, Fradund. See Fracture. 

 Thigh, Luxation of. See Luxation. 

 Thigh, in the Manege. The effeft of the horfeman's 

 thigh is one of the aids that ferves to make a horfe work 

 vigoroufiy. See Aid. 



Fore-thigh, or arm of a horfe, is that part of the fore-leg 

 that runs between the (houlder and the knee : though the 

 fore-thigh do=s not bend or bow, yet we commonly fay, a 

 horfe goes fine, that bends well the fore-thigh, importing 

 by it, that he bends well his leg. 



Horfes (hould always be full and well made in the thick 

 parts of the thigh, efpecially in horfes o£ the working kinds. 

 THIGHT, in Agriculture, a term provincially apphed to 

 turnip, or other crops which are thick or clofely fet. It 

 alio fignifies impervious, when applied to roofs or veffels in 

 fome diftrifts. 



THILACHIUM, in Botany, fo named by Loureiro, 



from 



