TAR SUPPLEMENT. TRI 



struments to play single sounds in an ac- referred toby Seneca, 

 companiment, until otherwise ordered. j TIGER WOOD, the wood of 



TATTA, bamboo trellis work over windows Schomburgkii, growing in British Guiana, 

 in India, over which water trickles to cool; It is a superior wood for cabinet purposes, 

 the air. I TILES, ENCAUSTIC, tiles of different 



TECTRICES, the covering feathers of the coloured clays combined together, showing 

 wings of birds other than the quill feathers, figures on their surfaces, recently : -PTfl-ed by 



TEGCMENTA, the scaly coverings of the Mr. Wright, ot Staffordshire, ;^i Me?w- 

 leaf buds of deciduous trees. j Minton, from the practice of the LtetUx val 



TEGUMENT or TEGUMEN, the skin or ' architects, 

 covering of a body generally. TIRAILLEURS, irregular soldiers, who 



TELEGRAM, a telegraphic message. separated themselves from the main body of 



TELEOLOGY, the doctrine of final causes, an army and shot at the enemy without 



TENSION, the force by which anything is firing together. They are now in the French 

 stretched. , army skirmishers and sharpshooters. 



TERATOLITE, the Terra miraculosa* TITANITK, the native oxide of titanium. 

 Saxonies, so called from its supposed medi-l TOLMKX or DOLMEN, the name given by 

 cinal qualities at one time. It is hydrated antiquaries to unhewn stones found resting 

 silicate of alumina, peroxide of iron, lime, on stone supports, supposed to be of Druidical 

 and magnesia, &c., from the Saxon coal for- origin, and to have been used as altars. Th 

 mation. same name is given by others to large mono- 



TERATOLOGY, the department of physiology liths with holes through them like passages, 

 devoted to the consideration of monstrosities TOPHUS, gouty deposit in the smaller 

 and malformations in organic nature. joints. Also a soft tumour on a bone. 



TERCE MAJOR, a sequence of the three TORPEDO, a new instrument of de- 

 best cards in card playing. struction introduced into modern mari- 



TERRA JAPONICA, an old name given time warfare, consisting of a conical or 

 erroneously to catechu, from its being at one other shaped case filled with explosive 

 time supposed to be an earthy mineral sub- materials, as gun cotton, dynamite, &c., so 

 stance. constructed that when vessels run against 



TERTIALS, the large feathers of the secon- them they explode, and discharge their 

 daries of the wings of birds. contents into the hull of the vessel from 



TERTIAN FEVER, an intermittent fever, below. They may be moored, and partially 

 whose paroxysms return every alternate concealed under water, for the protection ot 

 day. harbours or exposed coasts, otherwise opaa 



TERZETTO, a musical composition in three to the lauding of an enemy ; or towed to 

 parts. sea, and drawn into contact with the various 



TESSELATED PAVEMENTS, pavements of ships of an enemy's fleet ; or carried in front 

 small square pieces of stone or tesserce of of steam rams, or invested with motion and 

 different colours, laid-in in patterns into driven against a vessel, so as to blow her to 

 a bed of cement over a hard substratum : a pieces. 



favourite living for courts among the TOUREFACTION, the roasting of ores, 

 ancients. ;to expel volatile ingredients associated with 



TETE-DU-PONT, a fortified work for the them. Drugs are also torrefied, when they 

 defence of bridges, usually formed by rest- are dried by partially roasting them, or 

 ing its flanks on the river banks, and gene- .subjecting them to considerable heat, 

 rally open at the gorge. TRACTION' ENGINE, a locomotive 



TETRAGRAM, a quadrilateral figure. (engine for drawing heavy weights on ordi- 



TETRAPHARMACON, an ointment of wax, nary roads. 



lard, resin, and pitch, so called because it TRIAS, the lowest of the Mesozoic or 

 was composed of four remedies. Secondary deposits in geology. 



TETRASPASTON, an arrangement of four Tin BASIC, a term applied to acids which, 

 pulleys working together. in contact with any metallic oxide, replace 



TEXTILE FABRICS, woven fabrics of three atoms of hydrogen by three of the 

 texture or cloth. metal or a metallic equivalent. 



THALLIUM, aprimary or elementary metal TUICHIMASIS, the painful and fatal 

 discovered by Crookes in 1861, so called disease induced in the human body by the 

 from its green line in the spectrum. presence and ravages of the nematoid para- 



THEOLOGIUM, the upper stage of ancient site, Trichina Spiralis, of which there is no 

 theatres, on which the arrangements for known cure, 

 producing celestial appearances were placed. TiucKciors, plants which have male 



THERMOTICS, the science of heat. flowers on one plant, female fiowers ou 



THESPIAN ART, the tragic art another.and hermaphrodite flowers en a third, 



m 



