T H R 



extent of tlic farms, and be erefted in fucli a manner as to bo 

 convenient for having tht contents of the (lacks brought to 

 them. In this view it has been fujjgellcd, n. the Report on 

 Agriculture for the Welt Riding of Yorkfhire that the 

 ban.6 to which they are attached Ihould extend into the 

 yards in which the ftacks arc contained; as ui that way the 

 Uour and time will be confiderably knened of fupplymg 

 them with corn in the ilraw for being thrcfhed. And it lias 

 been iulllv remarked, by an intelligent promoter of agricul- 

 tural improvements, that this machine has not beqn attended 

 with one-half of tlie .advantage which might have flowed 

 from fo ufeful a difcovery, for want of combining the ule 

 of it with the various connected circumilances of the larm- 

 yard. The bufinefs of Hacking corn, for inllance, mull, it 

 is conceived, receive an entirely new arrangement in confe- 

 quencc of building a threlhing-mill or macliine. By means 

 of no other additional cxpence than that of an iron railway, 

 and placing the Hacks on frames relling on block-wheels, 

 two feet in diameter, a very conliderable annual expence in 

 time and labour mull, it is fuppofcd, be faved in carting 

 Hacks to the barns, in lofs of corn, and in waiting for good 

 weather, as well as in the faving of threfliing by flails, and 

 all the attendant evils of pilfering and leaving corn in the 

 ftraw. This is a material objca, which it is thought cannot 

 receive too much attention from both landlord and tenant, 

 It is contended that there cannot be the fmalleft doubt of 

 the propriety or profit of having one of thefc machines 

 fixed in the principal farm-yard. But that where the farm 

 is large, and Hacks confequently fcattered over various fields 

 or parts of it, then it may be right to have a moveable one 

 alfo ; but fo many operations are wanting at home, that one 

 Ihould certainly be fixed. The circular form of the rail- 

 way upon which the Hacks are brought to the mill or 

 machine, is confidered necelTary in fuch cafes, as being the 

 onlv one which permits a choice of any particular Hack to 

 threlh, without waiting for all or many others being done 

 before it can be got at ; but a Hr.iight line le.iding to and 

 pall the mill or machine is admiffible, except for this cir- 

 cunvHance, though much inferior, in fome other points, to 

 the circular form. In forming this plan, a fort of railway 

 Ihould be fo contrived as that a horfe or two may be fuf- 

 ficient to draw all common ftacks to the mill or machine. 

 And it is dircfted that the wooden Humps on which the 

 frame refts fliould be tinned, or laid in the common manner 

 with brafs lattcn, which is more durable than com.mon tin, 

 to keep out rats. Alfo, that as the power applied to the 

 threHiing-mill in other ways is at hand, and applicable alfo 

 to the above fort of work of drawing the Hacks, it may be 

 uffd for the purpofe in many cafes. 



TliitKSiir\f;-il/i7/ Barn or Biill/lin^, that fort of barn, 

 (lied, or other building which is calculated for receiving, or 

 which contains this kind of mill or machine. 



In this intention, an upper floor, raifed eight, nine, or ten 

 feet from the ground, in proportion to the height or fize of 

 the animals, and the arranrement of the machinery which is 

 to be employed, will be required, and which (hould reach 

 from end to end of the barn or building, as a repofitory for 

 the unthreflied corn, which fliould be there lodged and depo- 

 fited, at leifure times, from the Hack-yard, or other places, 

 in order to be ready to feed the mill or machine with from 

 this upper floor. The ground-floor fliould contain the large 

 mill-wheel, and a horfe-path round it, all the lower parts of 

 the machinery, a drcfiing-room for the grain, and a wide 

 open fpace for flraw of different forts, which is there to 

 be piled up, ready for the caule-flicds, on each fide of 

 this repoCtory of fodder. 



The cxpcnces of thefe prepared barns or buildings, will 



T H R 



probably not only be much leilened, but wholly done away, 

 in fome cafes, by the ufe of the ihreihing Hack farm-yard, 

 which has been dcfcribed in fpeaking of the mills or ma- 

 chines for this ufe, and much convenience and accommoda- 

 tion be thereby gained to the farmer in the difpatch of the 

 bufinefs, &c. 



On the whole, by thefe means the labouring teams and 

 hands will be enabled to perform the work of threfliing at 

 fuch wet, ftormy, and leifure periods as will render it the 

 leail troubleiome and expenfive to the farmer. See 

 I'l I R Es H I N G- Machine. 



THRESHOLD Point, in Geography, a cape on the 

 north-wcH coaH of New Guinea. S. lat. o° 37'. E. 

 long. 132°. 



THREX, among the Romans. See Thraces. 

 THRIFT, in Bolany. See Statice. 

 THRIHING. SeeTRrniNG. 



THRIMSA, in Antiquity, a filver coin, the value of 

 which has occafioned a variety of conjeftures. Lambard, 

 who gave the firft eHimatc of it, makes it a three-fhilling 

 piece, in which opinion he is followed by fir Henry Spelman. 

 Bifliop Nicholfon apprehends, that it was the name of their 

 common coin, and tliat the thrimfa, fceata, and penny, were 

 all of them the fame. Somner, from the import of the 

 word, and the value given to the thrimfa in the Saxon laws, 

 rates it at three -pence. Selden, Brady, and Hickes, are of 

 opinion, that this coin was either the laH tremiffis of the 

 Franks and Germans, and confequently four-pence, or the 

 third part of the Saxon fliilling, i. e. tliree halfpence and 

 one -third of a halfpenny in their money. Mr. Clarke adopts, 

 and endeavours to eftablilh the opinion of Somner, who ob- 

 ferved, from the laws of Athelftan, that the price of a 

 thane's life was, by the Angli, valued at 2000 thrimfas, 

 which, by the Mercian eftimate, was 1200 fliillings ; and if 

 each of thefe fums denotes the fame value, which is pro- 

 bable, the thrimfa mull; be to the fliilling as 2000 is to 1200, 

 or three p:u-ts in five of a Saxon fliilling, /. e. three-pence. 



The thrimla was firfl coined in the reigns before Athel- 

 llai!, during their greater affluence in cafh, and defigned 

 merely for the convenience of exchange, as the moft proper 

 divifion that could be made in their money without a frac- 

 tion, between the fliilling and the penny. But when tlie 

 fliilling was reduced, it was of little ufe, and by degrees 

 entirely laid afide. 



Dr. Hickes obferves, that the mctliod of computing by 

 thrimfas was chiefly ufed in the more mercantile parts of 

 this kingdom, among the Eall and WeH and South Saxons, 

 and poflibly coined only among them ; for it appears that 

 the inland provinces, the Mercians, reckoned generally by 

 the fliilling. Clarke's Conn, of the Roman, Saxon, and 

 Englifli Coins, p. 229, &c. 



THRIN, in Geography, a river of Norfolk, which joins 

 the Yare at Yarmouth. 



THRINAX, in Botany, %i»k;, a fan, in allufion to the 

 form of its leaves ; a name beftowed by the younger Lin- 

 naus on the little Fan Palm of Jamaica, when he firH dif- 

 tinguiflied this plant generically from Corypha, to which it 

 had been referred by Browne. To that genus it is, as 

 Swartz obferves, very clofely allied, difl^ering chiefly in the 

 want of a corolla. — Swartz Prodr. 57. Ind. Occ. v. i. 613. 

 t. 13.' Schreb. Gen. 772. Willd. Sp. PI. v. 2. 202. 



Mart. Mill. Dia. v. 4. Ait. Hort. Kew. v. 2. 307 



Clafs and order, Hcxandria Monogynia. Nat. Ord. 

 Pahii£. 



Gen. Ch. Cal. Perianth inferior, of one leaf, minute, 

 hemifpherical, with fix fniall, crcft, marginal teeth. Cor. 

 none. Stam. Fikmcr.'.s iix, erec\, equal, thread-fliapcd, 



about 



