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Terminator of the Moon. Ragged line which separates the illuminated from the unillurainated part of the moon's surface.

Termini. Port of n. Sicily, rebuilt as Thermae 408 B.C., on the site of Himera, destroyed by Carthaginians. Pop. ab. 23,000.

Tcrminos, Laquna De. Inlet on the Gulf of Mexico in the s.w. of the State of Campeche, Mexico. Resort for buccaneers at the beginning of the 18th century, now frequented for its woods. Length 70 m., breadth 40 m.

Terminus. Roman god of boundaries and frontiers.

Termites. White ants of the tribe Corrodentia, suborder Pseudo-neuroptera. They possess a pair of 18 to 20-jointed antenna?, a pair of ocelli as well as compound eyes, strong mandibles, and delicate wings, which lie parallel to the body when at rest. They live in communities, in passages hollowed out in wood, trees, mounds of earth, or nests of clay. Each colony has a queen, or sexually mature female, a king also,

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according to some authorities, and neuters of two sorts; viz.. soldiers, with large heads and powerful jaws, and workers, with shorter head and broader abdomen. The workers are larvae of both sexes. Only the mature sexual forms have wings, but these organs are lost by the queen after copulation. Africa and S. America are the principal habitats. See Complementary Males And Females.

Ternant, Jean Baptiste De. 1730-1816. French soldier, in the American service 1778-82; Minister to the U. S. 1790-93.

Ternate. Arranged in threes, as the parts of a compound leaf.

Ternaux-Compans, Henri. 1807-1854. French student, compiler, and writer on Spanish-American history. Bibliotheque Americaine, 1836; Voyages, etc., 20 vols., 1836-40; Archives, 1840-41.

Terne Plate. See Lead, Metallurgy Of.

Terns. Sea-birds, that with Gulls form the family Laridm. Compared with Gulls they are slenderer, have the nostrils near

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swallow-like flight, and secure their fish-food by diving from a height, and even swimming beneath the water to complete the capture. Most belong1 to the genus Sterna, as the Caspian Tern, Wilson's Tern (Sea-Swallow), Arctic Tern, Roseate Tern, and Least Tern. Other terns are Hydrochelydon nigra, the American Black Tern, and Oelochelidon nilotica, the Marsh Tern. In length terns range from 9 to 20 inches; the bill is colored red, carmine or yellow, with usually more or less of the outer end black. The feet are black, vermilion, red, or orange. The plumage is pearly-gray, marked with white and black. Some are northern, others tropical.

Ternstrwmiaceae. Natural family of flowering plants, of the class Angiospervm, subclass Dicotyledons, and series Choripetalce, comprising 41 genera and ab. 300 species, almost all growing in the tropics; called the Camellia family.

Terpander, 7th cent. B.C. Greek lyric poet of Lesbos and Sparta; father of musical education.

Terpenes. 1. Volatile hydrocarbons, occurring in various plants; oil of turpentine is an example. Their composition is expressed by C10H16. They combine with hydrochloric acid, are optically active, polymerize with ease, and are closelv related tocymene. 2. Compounds of this class prepared from conifers.

Terpsichore. Muse who presided over choral song and dancing.

Terrace. Area raised before a building above the level of the ground to serve as a walk; improperly used to denotes balcony or gallery.

Terracina. Town of central Italy, 60 m. s.e. of Rome. The Roman Tarracina was an important station on the Appian Way. Pop. ab. 6,500.

Terra Cotta. Variety of pottery, frequently used at an early period for architectural decoration. Statues were made of terra cotta in the time of Pausanias. It was also used to ornament the friezes of temples. In modern times it is again used in a variety of ways for ornamental and useful purposes. It is baked at a higher temperature than ordinary ware and withstands the weather.

Terra del Fuego. See Tierra Del Fuego.

Terra Firma. 1. Land, as opposed to water. 2. Continents, as VS. islands. 3. Formerly, part of n.e. Italy subject to Venice, and n. part of S. America.

Terra Japonlca. Gambier catechu, formerly supposed to be earth from Japan.

Terrapin. See Emydid^e.

Terra Rosa. Red earth containing iron found in limestone reirions. It is the undissolved residue of the calcareous rocks; often found in caverns.

Terre Haute. Capital of Vigo co., Ind., on the Wabash: settled 1816; site of the State normal school and the Rose Polytechnic Institute. Four railroads intersect here, and the Wabash and Erie Canal >rives water communication with Like Erie. Pop., 1890, 30,217.

Terrestrial. In Botany, neither aquatic nor arboreal in habit; growing upon land.

Terrestrial Magnetism. See Magnetism.

Terrestrial Paradise. Mediaeval writers fix the location of the Terrestrial Paradise in e. Asia. Cosmas in the 7th century speaks of it as a continent e. of China; others regard it as an island s.e. of Asia, while by some it was fixed in China. Later we find it described as an island s. of India or in Armenia, and frequently as Ceylon. In the center was a fountain that watered it, near which grew the tree of life. These notions are largely drawn from the Book of Genesis but similar conceptions are almost universal.

Terrestrial Radiation. Loss or radiation of heat by the earth into space, determined by Maurer to be 0.13 calorics per sq. centimeter per minute; heat radiated from the surface of land and water. It is partly absorbed by the atmosphere and partly transmitted directly through it into space; but that absorbed by the air is subsequently radiated by it, so that all terrestrial radiation eventually passes into space. Similarly, the heat communicated to the atmosphere by the sun directly or by convection from the earth's surface is eventually lost in space by atmosphere radiation. The sum total of radiation from land, ocean and air is terrestrial radiation in a general sense, and is just able to balance the solar radiation received.

Terricol». Oligochnetous Annelids that live principally in the earth: e.g., earthworm. See LUMBRICUS Terrestris.

Terriers. Small to medium-sized dogs, of compact build, with slender but strong legs, erect ears, and tail curved Up. They are good ratters and dig readily into the ground after prey. The English Terrier is smooth, and usually black and tan; the Scotch Terrier has a rough wiry coat of dirty white;

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Scotch Terriers.

rier, an extremely savage dog, is a cross between a terrier and a bulldog.

Terrill, William Rufus, U.S.A., 1834-1862. Brig.-gen. U.S. Vols. 1862; killed at Perryville.— His brother, JamesBabBour, 1838-1864, became Brig.-gen. C.S. A. 1864.

Territellarisr. See Tetbapneumones.

Territories of the U. S. New Mexico, Arizona, Oklahoma, Indian Territory, and Alaska, the last two unorganized.

Terror, Reign Of. May 31, 1793-July 27, 1794; period in the French Revolution between the fall of the Girondists and the overthrow of Robespierre. Many eminent persons perished.

Terry, Alfred Howe, 1827-1890. Clerk Conn. Supreme Court 1854-60; Col. 7th Conn. 1861; Brig.-gen. U. S. Vols. 1862, serving in S. C. and Va.; captor (with Admiral Porter) of Fort Fisher, N. C, Jan. 15. 1865: Major-gen. U. S. Vols, and Brig.-gen. U.S.A. 1865; Major-gen. U.S.A. 1886.

Terry, Eli, 1772-1852. Clock-maker and inventor in Conn.

Terry, Ellen, b.1848. English actress, on the stage from 1856; associated with Henry Irving from 1875; repeatedly in America; eminent in Shakespeare parts.

Terry, Henry Dwight, 1812-1869. Brig.-gen. U. S. Vols. 1862-65, serving in Va.

Terry, Milton Spenser, D.D.. b.1840. Prof. Garrett Inst., Evanston, 111., 1884; O. T. commentator. Hermeneutics, 188390; Sibylline Oracles, 1890.

Tersteegen, Gerhard, 1697-1769. German hymnist and mystical preacher. Spiritual Crumbs, tr. 1837.

Tertian Fever. Form of intermittent or malarial fever where the chill and fever occurs every other day. It is so named because parts of three days are occupied by the cycle. It is a common form of the disease.

Tertiaries. Lay persons, attached to an order, especially the Franciscan, without taking vows or leaving the world; distinguished from monks proper, or Primaries, and nuns, or Secondaries.

Tertiaries. Quills (remiges) borne by the joint of birds' wings which is nearest the body.

Tertiary. Division of the Cajnozoic Age, extending from the Chalk formation to the Glacial period; often called the era of Mammals. The Tertiary rocks are divided into the Eocene, Miocene and Pliocene, terms introduced by Lyell. See Column.

Tertiary Alcohols. Derived from methyl alcohol, CH3OH, by replacing the three hydrogen atoms with three similar or different hydrocarbon radicals. Upon oxidation they yield neither aldehydes nor ketones, but break down at once into an acid or acids containing a smaller number of carbon atoms. Example: Dimethylethylcarbinol, C.CH„.CH,.C,Hs.OH.

Tertiary Compounds. Formed by replacing hydrogen in a CH group by a group or radical. Tertiary butyl alcohol is (CHs),COH.* See Secondary and Primary Compounds.

Tertullianus, Quintus Septimius Florens, ab.160-ab.235. Presbyter of N. Africa, originally a pagan jurist; from ab.200 a Montanist, but in general doctrine catholic; a fiery, stern,

powerful writer, precursor of Latin ch. literature. His works exerted great influence, and are of historical importance.

Tcrwagne, Anne Josephe, 1762-1817. French revolutionist of bad character, prominent at the fall of the Bastile.

Teschemacher, James Englebert, 1790-1853. AngloAmerican chemist, mineralogist, and geologist. Guano, 1845.

Teschemacherite. Natural acid ammonium carbonate, occurring in connection with deposits of guano.

Tescheil. Town of Austrian Silesia. Here a treaty was signed May 13, 1779, between Austria and Prussia, closing the war of Bavarian succession; Austria relinquished most of ! Bavaria. Pop. ab. 13,000.

I Tesla, NIKOLA, b.1857 in Croatia. Electrician in New York, associate and rival of Edison; T. C. Martin has described his

I Inventions, Researches, and Writings, 1894.

Tessellata. Palaeozoic sea urchins, showing transitional forms to the Cystoids. Each interambulacral zone has five or six series of plates: and the ambulacral plates may be more

I than two rows. Palachinus is an example. There are two

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Palachinus ellipticus.—The left -ham! figure shows a portion of an
ambulacral area enlarged; the right-hand figure
exhibits a single interambulacral plate.

sections, the Perischoechinida and Bothrocidaridce. The former includes urchins having but one row of plates to each ambulacral zone: the latter includes forms with more than two vertical rows in each ambulacral or interambulacral zone. See Crinoids.

Tessellated. In Botany, having the surface divided into small geometric figures.

Tessellated Pavement. Roman pavement of pieces of brick or stone an inch square, forming geometrical patterns or animals and figures. See Mosaic.

Tesscroinedusae (tesseronle, Tetrameralia). Group of Jellyfishes, including Peromedus^e, Cubomedusje, and LucerNaridje (q.v.). They have their parts in fours.

Tessier, Ulric Joseph, 1817-1892. Judge of Queen's Bench, Quebec, 1875.

Tcssin. See Ticino.

Tessin, Karl Gustav. 1695-1770. Swedish official, orator, and author, tutor to Gustavus III.

Test (testa). Shell of Mollusks, Echinoderms, etc., or leathery tunic of Tunicates.

Testa. Outer seed-coat; ripened primine coat of the ovule of flowering plants; called also Spermoderm and Episperm.

Testacea. See Arcellina.

Test Acts. Passed in England 1661. 1672, and later, aiming to exclude Roman Catholics and Nonconformists from office and from membership in corporations; repealed 1829. Religious tests were enforced in the universities till 1871.

Testament. In English Law, originally, will bequeathing personal property. See Will.

Testament, Old And New. Two great divisions of the Bible (q.v.), so called by a confusion, in the Greek, between Testament and Covenant.

Testamentary Guardian. Guardian (q.v.) appointed by the father in his last will and testament.

Teste, LUCIEN AUGUSTE, 1765-1817. Swiss (German) writer on geologv; prof. Vienna 1795, and Milan 1805; explorer in Brazil 1815.

Test Galvanometer. See Galvanoscope.

Testi, Fulvio, 1597-1646. Italian poet.

Testicardincs (articulata, Clistenterata. ArthropoMATA). Brachiopoda with a calcareous shell, with hinge and brachial skeleton. There is no anus. Hhyuchonella and the allied Spirifer are ancient fossil forms. 1'erebratulina is still extant.

Testicle. See Testis.

Testimony. Oral evidence of witnesses.

1506

TESTING MACHINE—TETRABRANCIII ATA

Testing Machine. Apparatus by which known or measurable stresses can be applied to specimens of materials or members of structures, for ascertaining experimentally their resistance to such strains. The usual types of machine are to apply tests in tension, in compression, in flexure, or in torsion. One type can usually make the first three investigations; torsion requires a special but inexpensive machine for the best work. The older testing machines loaded a pan with direct weights and multiplied their effect by levers which applied the multiplied load to the specimen; recent ones use either the hydraulic press or screw searing to produce the load upon the specimen, that load passing through the sample and being balanced by counterpoises upon a graduated scale beam. The counterweights on the scale beam can thus be regarded as applying the load through the multiplying levers as before, the

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strain gearing being used only to neutralize deformation as it occurs. There are therefore two types of testing machine with respect to the applying of strain, hydraulic and screw. The hydraulic machines have the advantages of working easily by hand and rapidly, and of easy release of load for determining elastic limit; they are not so well adsrted to keep specimens under prolonged strain. The screw machines are adapted for use by power, with slow and gradual increase of strain and its prolonged maintenance. The torsional machines twist the prepared specimen by worm gear, and record the strain by the deflection of a loaded pendulum. The best machines give an autographic record of the test of specimens, a tracing point usually indicating elongations as abscissas upon the loads as ordinates. The largest machines are of the hydraulic type. The most perfect one ever built is the Emery Machine (q.v.). The most powerful machine is that at Phoenixville, Pa.; its capacity is 2,160,000 lbs., and it can break a bar 45 ft. long.

Testis (testicle). Essential reproductive gland of a male animal; in it, the spermatozoa are developed. In its most perfect condition of development a testis consists of a number of chambers or lobules, in each of which lie several coiled tubules (in Man, ab.800 each 2 ft. long). In the walls of the tubules the spermatozoa are formed by multiplication and transformation of epithelial cells. The tubules empty by means of a few straight tubes into a network of tubes from which in Man there are ab. a dozen vasa efferentia uniting to form the vas deferens or sperm duct. The latter in Man is ab. 20 ft. in length coiled up into an epididymis, and thence passing by a length of 2 ft. to reach the urethra. Testes are always paired and are developed and originate in the body cavity in a position corresponding to that of the ovaries, i.e., near the kidneys. In most Mammals they slip backward through the inguinal canal into scrotal sacs of the skin at the external opening of the urino-genital sinus. In the elephant, most Edentates, and lower among Mammals and all other Vertebrates, they never leave their primitive position. In Rodents and Inseetivora they descend through the inguinal canals only during rutting.

Test Oath. Generally, affirmation of present loyalty to a government. If so imposed as to be ex post facto in effect, it is unconstitutional in the U. S.

Tcstudlnata. Broadly, all the Chelonia (q.v.); in a restricted sense, the Testudinidce.

Tcstudinida?, or Chersidvb. Land Tortoises, a family of Chelonia. having high arched carapace, under which the head and feet can be retracted. The feet have separate

toes, and are adapted for walking. They are strictly herbivorous. The Emydidce are, by some, included as a subfamily. Examples of the family are the large and strong Gopher-tortoises of the Carolinas, which burrow in the earth, the massive Amazon Tortoise, used for food by the natives, the Galapagos Tortoise, and the small Garden Tortoise of Europe, also used as food.

Tetanus. Disease characterized by the continuous spasmodic contraction of certain muscles. Frequently the muscles of the jaws; whence the common name, lock-jaw. The origin is now traced to the presence of a specific microbe: the bacillus of tetanus. It usually is associated with an infected punctured wound, as the puncture of a rusty nail. It is one of the diseases where serum therapy seems to be curative, the results of the injection of tetanus antitoxin being very satisfactory as far as there has been opportunity to use it. Prevention is" far better than to risk the employment of the remedy, hence every punctured wound should be enlarged by a free incision to give an opportunity to properly cleanse the wound. If this is done promptly and thoroughly, tetanus will not ensue. Tetanus should not be confounded with tetany, which is also a disease of tonic spasm, but not so serious in its manifestation, nor is it due to an infection.

Tethya. See Tetractinelud^e.

Tetllj'Oldea (ascidians). Mostly fixed Tunicata, with saccular bodies. The inhalent and exhalent pores are close together; the branchial sac is large. Development is through a tailed-larva stage. There are four orders: Copelatoe. Ascidice simplices, Ascidice composite/;, and Ascidice salpoefortties. The first order may be grouped as Perennichordata, the others as Caducichordata. See Ascidians.

Tethys. Daughter of Uranus and Gaea; wife of Oceanus; mother of the ocean-nymphs and river-gods.

Tetraammonlum Compounds. Formed by the union of a tri-substituted ammonia with the halogen compound of an organic group. They may be regarded as ammonium salts; thus trimethylamine, (CH,),N, + methyl iodide, CH,I, — tetramethylammonium iodide, (CHa^NI.

Tetrabaslc Acid. See Acid.

Tetraoorfc Acid. HsB,0,. Pyroboric acid; brittle, glass-like substance, obtained by heating boric acid to 160° C. Its principal salt is borax, sodium tetraborate.

Tetrabranchlata. Cephalopoda with four gills, with a cleft funnel, and a many-chambered shell. The anterior chamber contains the animal; the others are united by a central siphuncle and contain air. Nautilus has 19 external tentacles (the dorsal pair can close the orifice of the shell), 2 ocular tentacles near each eye, and 12 internal tentacles, the four ventral of which, on left side, form the spadix; in the female

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much folded. Orthoceras. of structure allied to Nautilus but with a straight (not spiral) shell, is also fossil.

Tetrabromfluorescetn. See Eosin.

Tetrachlornaphtlialene. Cl0H8Cl4. Naphthalene tetrachloride; nipt. 182* C; solid, prepared by the action of chlorine or chlorate of potash and hydrochloric acid upon naphthalene; used in the manufacture of phthalic acid.

Tetracbord. System of four tones, which were the basis of the ancient Greek scales. It always compassed the interval of a fourth, but the middle tones were variable.

Tetracoralla. See Rugosa.

Tetractiliellidrc. Order of Plethospongice, including marine sponges with a more or less horny skeleton, inclosing a variable number of tetraxial spicules of flint: similar spicules are scattered freely throughout the sponge flesh. Other forms of spicules are present, but the prevailing form consists of a long ray bearing three short axes at one end. Geodia and Tethya are examples.

Tetrad. In Biology, group of four cells regularly placed in a square, resulting from a twice repeated binary division effected in vertically crossed planes.—In Botany, (1) four cells produced in the development of pollen grains from the mothercells; (2) group of four chromosomes, formed in the primary egg-cell or pollen-cell preparatory to cell-division.

Tctrudyniite. Mineral compound of bismuth and tellurium, found in the gold regions of Va., N. C, and Ga.

Tetradynamia. Linnaean class of plants, comprising those having four longer and two shorter stamens, as in Cress, Mustard, Turnip, and Pepper-grass.

Tetragram. In Modern Geometry, complete quadrilateral; figure formed by four straight lines, no three of which are concurrent.

Tetragrammaton. Sacred quadriliteral name of God, J-h-v-h (Jehovah), which the Jews hold it unlawful to pronounce, substituting Adonai, Lord.

Tctrngynla. Orders of plants having four pistils.

Tetralicdrite. Cu6Sb.,S7. Mineral copper sulphantimonite, in which the copper is often replaced in part by iron, silver, zinc, and mercury, and the antimony by arsenic; valuable as an ore of copper and, in the argentiferous varieties, of silver.

Tetrahedron. Polyhedron of four faces, necessarily triangles.

Tetralogy. Series of four plays or other writings.

Tetramera (psetootetramera, or Cryptopentamera). Colcoptera, with apparently four-jointed tarsus, but also an extra rudimentary joint. Here belong the Bostrychidoz, species of which injure pine trees by boring in the wood: the weevils (Curculionidce), which have a proboscis, and whose larvas live

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of the Madder family, the common Plantain, Dogwood, and Holly.

Tetraonida?. Family of Gallinacei, having a stout body, with short neck, small feathered head, and short legs, usually feathered to the toes. Partridges and Grouse are examples. The latter are larger, with nostrils feathered, and usually a naked strip over the eye.

Tetrapetalous. Corolla consisting of four petals.

Tetraphyllous. Plant bearing four leaves, or calyx or corolla composed of four leaves (sepals or petals).

Tctrapleura. Zygopleural organisms with four antimeres, according to the promorphology of Haeckel. The Annelids are examples.

Tctrapneumona. Holothurians with flask-shaped bodies, at whose narrow end are both the mouth and anus. The in

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Tetrapneumooa: a. Ypsiluthuria atttnuata; b, RUopalodina neurtali.

testine has four gill-caeca. Ten tentacles are present, and five sets of double rows of ambulacral feet. Rhopalodina is an example. See Apoda.

Tctrapneumoiies (terretellarle). See Araneida and Spiders.

Tetrapolitan Confession. Prepared by Bucer and Capito in the Reformed interest; adopted by four cities, Strasburg, Constance. Lindau, and Memmingen; presented to the Diet of Augsburg July 11, 1530, but not read there, nor further accepted.

Tetraprionidian. Graptolites with four rows of hydrothecse arranged down the stem of the polypary.

Tetruquetrous. In Botany, sharply four-angled; chiefly stems.

Tetrarch. Ruler of a fourth part; Galatian title, transferred by the Romans to Palestinian princes, as Herod Antipas, whom they were not willing to call king. The distinction was not much observed by their subjects. See Matt. xiv. 1, 9.

Tetrascpaious. Calyx composed of four sepals, as in St. John's Wort.

Tetraspores. Bright red spores formed by quadrate celldivision in many of the Florideae or red Algce. These are rarely in twos or eights, but ordinarily in fours; they propagate the plants independently of any sexual process.

Tetrastf choug. Arranged on the stem in four longitudinal rows.

Tetrastigm. In Modern Geometry, complete quadrangle; figure formed by four points, no three of which are on the same straight line.

Tetrastoon. Courtyard with porticoes on its four sides.

Tetrastyle. Portico with four columns in front.

Tetrathionic Acid. See Dithionic Acid.

Tetrodon. See Plectognathi.

Tetter. Popular name given to several skin eruptions, more especially to various forms of Eczema and Herpes (q.v.).

Tetzcl, Johann, ab.1455-1519. Dominican monk, whose abuse of Indulgences occasioned the breach of Luther with the Roman Church.

Teuflel, Wilhelm Sigismund, 1820-1878. Prof. Tubingen from 1849; historian of Latin literature.

Tcutones. German tribe, living probably near the Baltic. With the Cimbri, they invaded Gaul 113 B.C.

Teutonic. See Germanic.

Teutonic Knights. Military order founded 1190; its members took the three monastic vows. Herman von Salza 1210-39 transferred its sphere of operations from Palestine to heathen Prussia 1230, and founded an empire extending from the Oder to the Gulf of Finland. Its headquarters were removed from Venice to Marienburg 1309. It was the most im1508

TEUTONIC MYTHOLOGY—THACKERAY

portant political power of n. Europe 1350-80. Internal decay and the rising power of Poland weakened it. It was defeated at Tannenberg (e. Prussia) July 15, 1410; gradually lost its territories; was suppressed by Napoleon 1809, and was reorganized 1840 and 1865.

Teutonic mythology. The myths of the Germanic nations, which were transmitted from ancient times, and modified by association with other peoples. They had their gods and goddesses, which presided over the forces of nature, the elements, and the affairs of mankind, and the myths of the dead. See Scandinavian Mythology.

Tcwkiburr. Town of Gloucestershire; scene of Edward IV.'s victory, May 4, 1471, over the Lancastrians. Queen Margaret was made prisoner and her son slain. Its Norman abbey

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church, built 1123, measures 317 by 124 ft. across the transepts, with a massive tower 132 ft. high. It was restored by Scott in 1875-79, the later additions being in Early English, Perpendicular and Decorated styles. Pop., 1891, 5,269.

Tcwflk Pasha, Mohammed, 1852-1892. Khedive of Egypt 1879; son of Ismail: succeeded by his son Abbas.

Texas. Largest of the States, on the Gulf of Mexico: area 265,780 sq. m. Stretching over 13 degrees of longitude and 10 of latitude, it contains all variations of surface and of climate. The e. part, along the Gulf coast, is low, marshy, and unheal thful. Further inland, it becomes higher and densely forested. Still further inland is a prairie region, more broken than the prairies of Illinois. This is succeeded by high arid tablelands, reaching their summit in the Llano Estacado, 3,500 to 5,000 ft. high; between, the Pecos and Rio Grande desert plains are intersected by short isolated ranges of mountains. Numerous rivers rise in the Llano Estacado and in the prairie region, and flow s.e. to the Gulf. Along the s.w. border, separating it from Mexico, flows the Rio Grande. Its principal branch is the Pecos, which joins it in the w. deserts. The geology of the State is ;is varied as its surface. The w. two-thirds are underlaid by Cretaceous formations, within which are found areas of Cambrian, Silurian, Carboniferous, and even Quaternary beds. Shoreward from this area of Cretaceous is a broad belt of Eocene, followed by Neocene, while along the Gulf, including all the low-lying country, are Quaternary beds. The industries differ widely in its different parts. In the e. the culture of cotton prevails; further w. that of the cereals as far as comparatively dense settlement has extended. Beyond that, on the w. and s., the ranging of cattle and sheep is the chief industry. In 1890 the value of farms was $399,971,289, of the agricultural product $111,699,430. In recent years the development of the railroad system of T. has gone on with extreme rapidity. In 1893 the mileage of railroads was 9,088. The State has not yet reached the stage of settlement where manufactures become of great importance. 585.000 tons of coal was mined in 1896. Its commerce is largely centered at the port of Galveston, and consists mainly of the shipments of cotton and cattle. Till 1821 the history of T. is that of a Spanish territory. After the purchase of La. by the U. S., Americans began to settle in T., and in 1821, when Mexico became independent of Spain, colonization from the U. S. was permitted and protected by the Mexican

government; but in 1830 the American colonists were placed under military rule, and hence ensued the struggle for independence. The Mexicans were defeated 1836, and till 1845 T. was an independent State. In 1845 it was admitted, against the protest of Mexico, as one of the States. The result was a war, ending in Mexican defeat, the cession of Cal., New Mexico, and the intervening territory, now composing Nevada, Utah, and Arizona, and the payment of $15,000,000. T., on admission to the Union, sold to'the U. S. the portion of its territory between the headwaters of the Rio Grande and Arkansas. The State seceded 1861, and was readmitted with a new constitution 1868. Capital, Austin. Pop., 1890, 2,235.523, over one-fourth colored.

Texa§, University Of. At Austin: opened 1883. It is coeducational, has 30 professors in the College of Arts, with 343 students. The Medical College, at Galveston, opened 1891. has 9 professors, 9 lecturers, and 248 students. The Law School has 144 students under 3 instructors. The Agricultural and Mechanical College, at Bryan, connected 1876, has 23 instructors and 354 students.

Texel. Island of n. Holland, in area ab. 35,000acres; scene of naval battles 1653. 1673, and 1799. Pop. ab. 6,500.

Texier, Charles Felix Marie, 1802-1871. French explorer in Asia. Asia Minor, 4 vols., 1839 and later; Armenia, Persia, and Mesopotamia, 1842-45.

Textile Fabrics and Designing. See Weaving.

Textularidca. Order of perforate Foraminifera. with small hyaline shells or large arenaceous ones, the chambers of which are usually arranged in a spiral or alternately.

Tezcatlipoca. God of the winter sun and of stern law; chief Aztec deity, with his brother Uitzilopochtli, god of the summer sun; worshiped with human sacrifices.

Tezcuco. City of Mexico. 17 m. e. of the capital; held from ab.1120 by a tribe often at war with the dominant race. Its remains are important. Pop. ab. 16.000. Its lake, between it and Mexico, covers ab. 80 sq. m., but is shallow.

Tczcl. See Tetzel, J.

Thacher, George, 1754-1824. M.C. from Mass. (Me.) 17891801; Judge Supreme Court of Mass. and Me. from 1800.

Thacher, James, 1754-1844. Surgeon in Continental army 1776-82, and at Plymouth, Mass. Military Journal, 1823; Medical Biography, 1828; Hist. Plymouth, 1832.

Thacher, Thomas, 1620-1678. Pastor and physician in and near Boston; praised by Cotton Mather.—His son, Peter, 1651-1727, and great-grandson, Peter, D.D., 1752-1802, were noted preachers.—Samuel Cooper. 1785-1818, son of the last, was an early and able defender of Unitarianism.

Thackeray, Anne Isabella. See Ritchie.

Thackeray, William Makepeace, 1811-1863. English humorist and satirist, famous chieflv for the novels Vanity Fair, 1847-18; Pendennis, 1848-50; Esmond, T852; and The

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