TUB 



72) 



TUN 



close to its mast, and retain it firmly in 

 that position. -4. In botany, a truss is a 

 tuft of flowers formed at the top of the 

 main-stalk of some plants. 



TRUS'SING. In carpentry and ship- 

 building a series of diagonal braces, dis- 

 posed in triangles, the sides of which give 

 to each other a mutual support or coun- 

 teraction. 



TRUST. In law, an estate held for the 

 use of another. 



TRUS'TEE. In law (1.), one who holds an 

 estate in trust; (2.) one to whom is con- 

 fided the management of some property, 

 in trust for the benefit of others. 



TRDTH. In the fine arts, a faithful ad- 

 herence to the models of nature. 



TRY-SAIL. Strain-sail. A sail used by 

 a ship in a storm. 



TCB'BER. The name given in Cornwall 

 to a mining instrument, called in other 

 parts a beele. 



TIMBER, Lat. from tumeo, to swell. 1. 



An excrescence. 2. In botany, a round 



turgid root, as that of a turnip. Also the 

 name of a genus of fungi , now included in 

 the genus Lycoperdon (q.v.). 



TU'BERCLE, Lat. tuberculum, dim. of 

 tuber. In pathology, a peculiar morbid 

 production, which occurs in various tex- 

 tures of the body, in connection with scro- 

 fula. It occurs in isolated roundish mas- 

 ses. The matter is unorganised. 



TCBER'CCLAR, Lat. tubercular is, 1 



TUBER'CULATE, Lat. tuberculatus. ( 

 Tubercled. Having small warts or tuber- 

 cles. Applied, in natural history. 



TU'BEROSE. 1. Tuberous. 2. A plant. 



See POLYANTHUS. 



TU'BEROUS, Lat. tuberosus. Knobbed. 

 Applied to parts of plants. 



TUBICINEL'LA. A genus of tubularshells, 

 not spiral ; placed by Lamarck among the 

 sessile cirrhipedes. Name dim. of tubicen, 

 a trumpeter. The species are found im- 

 bedded in the blubber of whales. 



TUBIC'OLA. The name given by Cuvier 

 to an order of Articulata, comprising Ser- 

 pula, Sabella, Terebella, Aui phi trite, Sy- 

 phostoma, and Dentalium. The shell is 

 a calcareous tube ; whence the name, 

 from tuba, and cola, an inhabitant. 



TCBICOLA'BIA. The name given by 

 Lamarck to a genus of Infusoria, of the 

 order Rotifera. Name from tuber, and 

 cola, a dweller, because the species se- 

 crete themselves in little tubes, which 

 they construct of foreign molecules. 



TUBICOB'NIA, Lat. tubus comti, a horn. 

 A family of ruminants, which have the 

 horns composed of an axis enveloped in 

 a sheath. 



TU'BIPORA, ) Organ-pipe coral, consist- 



TC'BIPORE. J ing of parallel tubes of a 

 trong substance, each containing a poly- 

 pus. There are several species. Order 

 VeraUij'eri ; family Tvbvlarii. 



TCBULA'RIA. A genus of coralliferous 

 poly pi, which construct simple or branched 

 tubes of a horny substance. The genus 

 is now subdivided. The sub-genera are 

 Tubularia marina, found in salt water; 

 Tibiana, Lamour., inhabiting zigzag 

 tubes; Cornularia, Larnar., of which the 

 tubes are conical; Anguinaria, Lamar., 

 of which the tubes are cylindrical ; and 

 Campanularia, Lamar., the tubes of 

 which are bell-shaped. 



TU'BULATED, tttbulatus. Synonymous 

 with tubulotH. A retort which has a small 

 tubular production, like the mouth of a 

 phial, with a stopper adapted to it, is 

 called a tubulated retort. 



TUES'DAY. The third day of the week : 

 Saxon Tiwcesdacg or Tuesdaeg, from Tuisco, 

 the Mars of our ancestors. Hence Tues- 

 day is court or combat-day. 



TU'FA. Fr. tuf, It.tufo. 1. A calcareous 

 deposit from water. See CALCAREOUS 



TUFA. 2. Tuf, tuff, volcanic tufa, are 



names applied to several different sub- 

 stances, products of volcanic eruptions. 

 Generally it is an aggregate of sand and 

 volcanic ashes and fragments of scoria 

 and lava. 



Tuis'co. In mythology, the god of war 

 or the Mars of the northern nations. 

 Tuesday was appointed for his adoration. 



TU'LA METAL. An alloy of copper, sil- 

 ver, and lead. 



TU'LIPA, j An extensive genus of peren- 



TU'LIP. j nia) plants. Hexandria Mo- 

 nogynia, Nat. order, Coronarice The 

 yellow tulip is the only indigenous spe- 

 cies, but many others are found in liie 

 gardens. 



TUM'BLE HOME. Applied to the falling 

 in of the upper timbers of a ship's side. 



TUM'BHIL. In gunnery, a two-wheeled 

 carriage, used in carrying the tools of 

 the pioneers and miners, and occasionally 

 the money and ammunition of the army. 



TU'MOUR, Lat. tumor, from tumeo, to 

 swell. A swelling of a permanent kind, 

 divided into sarcomatous, which are firm 

 and fleshy, and encysted, which have a 

 sac containing matter more or less fluid. 



TU'MULUS (Latin). A small conical hill 

 of earth, raised as a memorial over the 

 remains of the dead, by the early nations 

 of antiquity. 



TUN. 1. A large cask. 2. A wine 



measure containing two pipes of 4 hogs- 

 heads, or 252 gallons. It varies, however, 

 in different countries. 



TUNE, TOVO;. In music, the relation of 

 notes to each other, and the distances be- 

 tween them, whence arises melody. 



TUNO'STEN. Ifrom Swed. ding, 



TUNOSTE'NUM, j heavy, and sten, stone. 

 A greyish-white metal, very brittle and 

 very hard, and fusible in the most intenw 

 heat only. The name was originally 

 given by the Swedes to the ore of the 



