TKILOBITA. 467 TRINIDAD. encc, ser. 4, vol. xiii. (1902); "Outline of a Natural Classification of Trilobites," vol. iii. ( 1887 ) ; Jaekel, "Beitrage zur Beurtheilung der Trilobiten," in Zcitschrift drr dciitschcn f/co- loijischcn Gesellschaft, vols. liii. and liv. (Berlin, l>ioi-02) : Reed, "Notes on the Evolution of the Genus Cheirurus," Geological J/ai/o^ijie, Decade IV.. vol. iii. (London, " 1896) ; Schmidt, '-Re- vision der Ostbaltischen Silurischen Trilobiten," Meiitoircs de I'Acadcinie Impcrialc des Sciences de Saint-P^tcrshoitrg, 'ti series, vols, xxx., xxxiii., xlii., ser. 8, vol. vi. (Saint Petersburg. 1881-98) ; Vogdes, "A Classed and Annotated Bibliography of the Pala'ozoic Crustacea." California Academu of Sciences', Occasional Papers, vol. iv., supple- ment to same in vol. v. (San Francisco, 1893-95) . TRILOGY (from Gk. rpAoyla, trilogia, group of three dramas, from Tpih treis, three + X6705, logos, word). The name given by the Greeks to a group of three tragedies, often con- nected by a common subject and representing dif- ferent stages or phases of the same story. A satyric drama was customarily added as a ter- mination, whence the whole was sometimes termed a tetralogy. A tragic poet who wislied to take part in one of the Athenian poetic contests had to produce a trilogy along with a satyric drama at the great Dionysiac, Len.Tan, or Anthesteriac festival. We possess onlj' one perfect specimen of the classic trilogy — the Oresteia of ^■Eschylus, which embraces the Agamemnon, the Clwephorce. and the Enmenides. Consult: Welcker, Die Aeschyleisclie Trilogie, etc. (Darmstadt, 1824); Franz, Des Aeschylos Oresteia (Leipzig, 1846) ; Campbell, The Oresteia of .Hschylus, trans, and introd. (London, 1893). TRIM, CoEPORAL. The voluble and devoted servant and companion of Uncle Toby in Sterne's Tristram Shandy. TRIMBLE, trlmljl. Robert (1777-1828). An American jurist, born in Berkeley County, Vir- ginia (now West Virginia). He was admitted to the Kentucky bar in 1803 and subsequently was elected to the Legislature. In 1808 he was appointed second judge of the Court of Appeals, in 1810 Chief Justice of Kentucky, and in 1813 Vnited States district attorney. From 1816 to 1826 he was district judge of Kentucky, and from 1826 until liis death a justice of the United States Supreme Court. TRIMETHYLAMINE (from tri- + methyl -- amine), (CH, )3N. An organic base with an extremely powerful and disagreeable fishy odor. It is obtained as a colorless gas, readily soluble in water, and having a strong alkaline reaction. With acids it readily forms soluble salts. It is obtained by distillation from ergot of rye, from guano, from the juice of the leaves of red beet- root, and from putrid yeast. It may be formed artificially by the action of methyl iodide on dimethylamine: but the source from which it may most readily be derived is herring brine. See Amines. TRIM'MER, Mrs. Sarah (1741-1810). An English author, daughter of John .Joshua Kirby of Ipswich, a close friend of Gainsborough. Set- tling with her parents in London, she met .Tames Trimmer of Brentford, whom she married in 1762. Mrs. Trimmer was one of the pioneers in founding Sunday-schools. Her first schools were opened at Brentford in 1780, and were so successful that she was summoned l)y the Queen to Windsor to help start others there. In 1787 she also established at Brentford a school of in- dustry for girls. Soon after this she introduced into the Sunday-school tlic plan of teaching by prints now in almost universal use. Among her books are Easy Introduction to the Knoieledge of 'Nature (1782; 11th ed. 1802); the books with pictures and explanations which after a large circulation were issued as A'eio and Com- prehensive Lessons (1814; 5th ed. 1830); and the Abridgements of the Old and New Testa- ments, which, issued separately by the Society for Promoting Christian Knowledge in 1793, reached a sale of a quarter of a million copies. TRIMORPHOUS. See Isomorphism. TRIMURTI, tre-moor'te (Skt. trimilrti, triple form). The name of the Hindu triad of the gods Brahma (q.v.), Vishnu (q.v.), and Siva (q.v.), when regarded as an inseparable unity of creation, preservation, and destruc- tion, though three in form. The concept ia relatively late, and cannot be older than the fifth or sixth century a.d. It is probable that the gods Vishnu and Siva were first as- sociated as representatives of the two great Hindu sects (see Saivas ; Vaishnavas), and that. Brahma was added at a later time, as he was a later philosophical concept. The basal idea of this triad must not be confused, as is sometimes the case, with that of the Christian Trinity (q.v.), since the three Hindu deities are entirely distinct from each other. In Indian art the Trimurti is one body with three heads: in the middle, that of Bralima; at the right, that of Vishnu; .and at the left, that of Siva. The symbol of the Trimurti is the mystic syllable Cm (q.v.). TRIN'COMALEE', or TRINCOMALI, trln'- ko-mii'ls. A seaport town on the northeastern coast of Ceylon, 99 miles northeast of Kandy (Map: India, D 7). It is situated on an elevated and precipitous peninsula on the north side of the fine harbor of Trincomalee, the best in Ceylon. Trincomalee is chiefly important as a naval station. The Temple of the Thousand Columns, now in ruins, was erected by the Mala- bars and destroyed by the Portuguese in 1622. It ia still a famous place of pilgrimage of the Hin- dus. Near the ruins rises Fort Frederick, which was built by the Portuguese from the old ma- terial of the temple. Population, in 1901, 13,000. Trincomalee was one of the last towns to sur- render to European authority. It was held suc- cessively by the Portuguese, "Dutch, and French, and surrendered to the British forces after a naval siege of three weeks in 1795. Consult Cave, The Ruined Cities of Ceylon (London, 1900). TRIN'IDAD',. Sp. pron. tre'n^-Diin'. A British West Indian island, belonging to the Windward group, situated close to the mouth of the Orinoco (Map: West Indies, R 9). Area, 1754 square miles. The, surface is generally fiat. The northern ])art. however, is traversed by sev- eral parallel mountain chains running from east to west and from 600 to over 3000 feet high. The island is well watered. In the southwest- ern part is the famous pitch lake of La Brea, which yields asphalt for export. The flora is
