THYSANURA 



327 



TOLUOL 



sanos, fringe; pteron, wing.]=Thrips: minute 

 insects, forming a sub-division of Mandi- 

 bulata. 



Thysanura, (thi-sa-nu'ra). [Gk. thy sanos, 

 fringe; oura, tail.] Ametabolous insects, 

 with scaly bodies, biting jaws, and no wings; 

 named from having fringed appendages. 



Tibia, (tib'i-a). [The Latin, name.] The 

 shin-bone. 



Ticks, (tiks). [Tique, the French name.] Small 

 spider-like animals belonging to Trachearia. 



Tidal air. The air which passes in and out in 

 breathing=about 25 cub. in.ateach breathing. 



Tides, (tidz). [Tid, the A.-S. name.] Move- 

 ments by which the level of the sea is con- 

 stantly changing, rising in one place and 

 falling in another. Neap T. = Low tides. 

 Spring T.=High tides. 



Tiger, (ti'ger). [Tigris, the Latin name.]= 

 Felis tigris: a carnivorous animal belonging 

 to Felidae, q.v. Camel T. Maneless lion. 

 T. 6ee(ie=Cicindelid8e : a family of insects 

 belonging to Coleoptera. T. 6im=Tigri- 

 soma, q. v. T. sharks = A variety of the shark , 

 found near Norfolk Island. 



Tigrisoma, (ti-gri-so'ma). [L. Tigris, tiger; 

 Gk. soma, body. ]=Tiger- bittern. A bird 

 belonging to Ardeidse. 



Tiles, (tilz). [L. tegula, roofing-tile.] Thin 

 plates of baked clay: used for roofs and pave- 

 ments, <tc. 



Tilestones. Beds of sandstones and grits, be- 

 longing to Upper Ludlow formations. 



Tilia, (til'i-a). [The Latin name.]=Lime-tree 

 = Linden: a tree, the type of Tiliaceie. 



Tiliaceae, (til-i-a'se-). [Tilia, 7.r.]=Linden- 

 blooms: shrubs and trees, with tough inner 

 bark, belonging to Mai vales. 



Till, (til). A tough, stony, unstratified clay 

 rock, characteristic of the Lower Drift, 

 usually inland: implying the existence of 

 intense cold at the time of formation. 



Tillandsia, (til-land'si-a). [Prof. Tillands, of 

 Sweden.] A plant belonging to Bromeliaceae. 

 T. utriculata='Wild pine of Jamaica. 



Tilt. T. hammer: a large hammer, tilted up 

 by machinery. T. steel = Forged 8teel= 

 Hammered steel. 



Timber, (tim'ber). [Timbor, the A.-S. name.] 

 Kinds of T.: planks, 11 inches wide; deals, 

 9 inches wide; battens, 7 inches wide. 



Timbre, (tim'br). [The French word.] The 

 peculiar quality of a note, which distin- 

 guishes any given note on one instrument 

 from the same note on another. 



Time, (tim). [Tima, the A.-S. word.] Sidereal 

 T. : reckoned with reference to the position 

 of the first point of Aries. Solar T.: 1. 

 Apparent S. T.; reckoned with reference to 

 the position of actual Sun; 2. Mean S. T.: 

 reckoned with reference to the position of 

 Mean Sun. T. ball: one which is let fall, 

 down a staff, at some observatories, usually 

 at 1 P.M., as a standard of time. T. measure, 

 v. Tables. T, fuze : a tube filled with nitre, 

 gunpowder, &c., which burns at the rate of 

 1 inch in 5 seconds, so that a shell can be 

 exploded at any given time after discharge. 



Timorese. An Oceanic race. 



Timothy-grass. [Mr. Timothy Hanson.] = 

 Phleum pratense. 



Tin, (tin). [The A.-S. word.]=Sn^: one of the 

 Silicon-group of elements ; a soft white, 

 brilliant, malleable metal, much used as a 

 protective coating for more oxidisable metals, 

 and as an ingredient in pewter, bell-metal, 

 bronze, &c. Alloys of T. : Britannia metal, 

 pewter, Queen's metal, solder, bronze, &c. 

 T. pyrites=1iu ore : chiefly sulphide of tin, 

 with copper and iron. 



Tinea, (tin'ka). A fish belonging to Cyprinidse. 

 T. vulgaris=Tench. 



Tincal, (ting'kal). [Tingkal, the Malay name.] 

 = Borax, q.v. 



Tinctures, (ting'turz). [Tinctura, the Latin 

 word.] Coloured solutions of animal and 

 vegetable principles. 



Tinnunculus,(tin-nung'ku-lu8). A bird belong- 

 ing to Falconidee. T. alaudarius=Ke&trel. 



Tint, (tint). [L. tinctus, tinged.] Intensity 

 of colour, cf. Hue. 



Tipulidae, (tip-u'li-dC). [Tipula, the typical 

 genus; Gk. eidos, form. ] = Crane-flies : a 

 family of insects belonging to Diptera. 



Titania, (ti-ta'ni-a). A satellite of Uranus. 



Titanic acid, (ti-tan'ik). [Titanium, q.v.]= 

 TiOz' peroxide of titanium; also called Rutile 

 and Titanite. 



Titanite, (ti'tan-it). A mineral, composed 

 chiefly of titanic acid; also called RutiJe. 



Titanium, (ti-ta'ni-um)=Ti: one of the silicon 

 group of elements. A rare metal. 



Tit. T. ZarAr=Anthus pratenisis : a lark-like 

 bird; also called Meadow pipit. T. mouse= 

 Panis : a bird, the type of Paridaj. T. 

 war&ter=Sylvicola minuta. 



Tits=Paridae, q.v. 



Toad, (tod). [Tadie, the A.-S. word.]=Bufo 

 =Rana buib : a small amphibious animal, 

 belonging to Batrachia. Great T.= Surinam 

 T.=Pipa Americana. Indian 2 7 .=Glypho- 

 glossus, q.v. T. flax='Linaiia., q.v. T. stools 

 =Hymenomycetes, q.v. 



Toads=Bufonidie. A family of amphibous 

 animals, belonging to Batrachia. 



Toad's-eye tin. A variety of wood-tin ; found 

 in small spherical masses. 



Tobacco, (to-bak'ko). [Tabaco, the Indian 

 name.] Foliage of Nicotiana, used for smok- 

 hig; has narcotic properties. Garden T.= 

 Arnica montana. Indian T. Cannabis 

 Indica. Powdered T.=Snuff. 



Toddy, (tod'di). A fermenting drink: the 

 sweet juice of the cocoa-nut trees. T. bird^= 

 Baya sparrow; found in India and Ceylon. 



Toe," (to). Great T. =Hallux. 



Toggle-joint, (togl). Knee-joint: a bar jointed 

 in the middle. f 



Toise. v. Length. 



Tolmen, (tol'men). [Celt, daul, table; 

 maen, 8tone.]=Dolmen, q.v. 



Toluic acid, (tol'Q-ik). [Toluol, q.v.]= 



aH 8 O 2 ; also called Toluylic acid. 

 uidine:=Benzylamine = Toluylia, 

 1.v. 



Toluol, (toru-ol)=C 7 H 8 =Benzoene= 

 Retinaphtha: a liquid hydrocarbon Toggle^ 

 obtained from coal-tar. joint. 



