Ochterlony, Sir David, British general, born at Boston, U.S., of Scottish descent; entered the Indian army; distinguished himself in the war against the Goorkhas; was made a baronet, and received a pension of £1000 for his services; a monument to his memory stands in the Maidan Park, Calcutta (1758-1825).

Ockley, Simon, Orientalist, became professor of Arabic; wrote a "History of the Saracens," part of it in a debtors' prison; died in indigence (1678-1720).

O'Connell, Daniel, Irish patriot, known as the "Liberator," born near Cahirciveen, co. Kerry; educated at St. Omer, Douay, and Lincoln's Inn; was called to the Irish bar in 1798, and was for twenty-two years a famous and prosperous practitioner on the Munster circuit; turning to politics he became leader of the Catholics in 1811, his object being the removal of the Catholic disabilities; the Catholic Association of 1823 was organised by him, which he induced the priesthood to join, and awakened irresistible enthusiasm throughout the country; the electors now began to vote independently, and O'Connell was returned for Clare in 1828; the House refused to admit him; but so strong, and at the same time so orderly, was the agitation in Ireland, that in 1829 the Catholic disabilities were removed, and O'Connell, returned again for Clare, took his seat in the House of Commons; next year he represented Waterford in the new Parliament, and subsequently Kerry, Dublin, Kilkenny, and Cork; he now formed a society for promoting the repeal of the Union, which survived several suppressions, and reappeared under different names; but in spite of his exertions in the House and in the country the cause languished, till, in 1843, as Lord Mayor of Dublin, he carried a resolution in its favour in the City Council; but now under the pressure of less experienced agitators, his monster meetings and other proceedings began to overstep legal limits, and in 1844 he, with six of his supporters, was indicted for raising sedition; he was sentenced to a year's imprisonment and a fine of £2000, but the sentence was set aside in 14 weeks; by this time the Young Ireland party had broken away from him, the potato famine came, he was conscious of failure, and his health was broken; he died on his way to Rome, at Genoa; a man of great physical strength and energy, and a master of oratory, he gave himself unselfishly to serve his country, sacrificing a legal practice worth £7000 a year, honestly administering the immense sums contributed, and spending his private means for his cause; with an undeniable taint of coarseness, violence, and scurrility in his nature, he was yet a man of independent and liberal mind, an opponent of rebellion, loyal to his sovereign, a great and sincere patriot (1775-1847).

Octavia, the sister of Augustus, a woman distinguished for her beauty and her virtue; was married first to Marcellus, and on his death to Mark Antony, who forsook her for Cleopatra, but to whom she remained true, even, on his miserable end, nursing his children by Cleopatra along with her own; one other grief she had to endure in the death of her son Marcellus (q. v.) by her former husband, and the destined successor of Augustus on the throne.

October, the tenth month of the year so called (i. e. the eighth) by the Romans, whose year began on March.

Od, name given to a physical force recently surmised and believed to pervade all nature, and as manifesting itself chiefly in connection with mesmeric phenomena.

Oddfellows, the name of several friendly societies. The Independent Order of Oddfellows, Manchester Unity, is the largest and most important of the number, its membership is over 665,000, and its funds amount to £8,000,000. It has been the pioneer in many important movements of the kind, several of the provisions now compulsory on all societies it observed of its own accord, prior to their enactment; the actuarial tables compiled from its statistics in 1845 by its secretary, Henry Radcliffe, are still a standard work. The Grand United Order of Oddfellows has a membership of 241,000, and funds amounting to £882,000; the National Independent Order of Oddfellows embraces 58,000 members, and has £242,000.

Oder, an important German river, rises in Moravia, and crossing the frontier flows NW. through Silesia, and N. through Brandenburg and Pomerania 550 m. into the Stettiner Haff and so to the Baltic. On its banks stand Ratibor, where navigation ends, Breslau, Frankfort, and Stettin; it receives its chief tributary, the navigable Warthe, on the right, and has canal communication with the Spree and the Elbe.

Odessa (298), on the Black Sea, 25 m. NE. of the mouth of the Dniester, is the fourth largest city of Russia, and the chief southern port and emporium of commerce. It exports large shipments of wheat, sugar, and wool; imports cotton, groceries, iron, and coal, and manufactures flour, tobacco, machinery, and leather. It is well fortified, and though many of the poor live in subterraneous caverns, is a fine city, with a university, a cathedral, and a public library. It was a free port from 1817 till 1857. The population includes many Greeks and Jews.

Odin or Wodin, the chief god of the ancient Scandinavians, combined in one the powers of Zeus and Ares among the Greeks, and was attended by two black ravens—Hugin, mind, and Munin, memory, the bearers of tidings between him and the people of his subject-world. His council chamber is in Asgard (q. v.), and he holds court with his warriors in Valhalla (q. v.). He is the source of all wisdom as well as all power, and is supposed by Carlyle to have been the deification of some one who incarnated in himself all the characteristic wisdom and valour of the Scandinavian race; Frigga was his wife, and Balder and Thor his sons. See Carlyle's "Heroes."

Odo, bishop of Bayeux, brother of William the Conqueror, fought by his side at Hastings; after blessing the troops, was made Earl of Kent, and appointed governor of kingdom during William's absence in Normandy; had great influence in State affairs all along, and set out for the Holy Land, but died at Palermo (1032-1096).

Odoacer, a Hun, son of one of Attila's officers, who entered the Imperial Guards, dethroned Augustulus, and became emperor himself; Zeno, the emperor of the East, enlisted Theodoric of the Ostrogoths against him, who made a treaty with him to be joint ruler of the kingdom of Italy, and assassinated him in 493.

O'Donnell, Leopold, Spanish soldier and politician, born, of Irish descent, at Santa Cruz, in Teneriffe; entered the army, and attached himself to the cause of Queen Isabella, on whose emergence from her minority in 1843 he was made Governor of Cuba; there he enriched himself by trading in slaves, and returning to Spain threw himself into politics; he joined Espartero's cabinet in 1854, and two years later supplanted him as chief minister; he commanded in the Moorish war of 1858, and was created Duke of Tetuan after the capture of that city; he was again Prime Minister till 1866, and died in exile at Bayonne (1809-1867).

Odyssey, an epic poem by Homer relating the ten years' wanderings of Ulysses (Odysseus) after the fall of Troy, and his return at the end of them to his native kingdom of Ithaca. See Ulysses.

Oecolampadius, Joannes, one of the leaders of the Reformation, born at Weinsberg, in Würtemberg; became preacher at Basel, assisted Erasmus in his edition of the New Testament, entered a convent at Augsburg, came under Luther's influence and adopted the reformed doctrine, of which he became a preacher and professor, embraced in particular the views of Zwingli (1482-1531).

Oedipus, a mythological king of Thebes, son of Laius and Jocasta, and fated to kill his father and marry his mother; unwittingly slew his father in a quarrel; for answering the riddle of the Sphinx (q. v.) was made king in his stead, and wedded his widow, by whom he became the father of four children; on discovery of the incest Jocasta hanged herself, and Oedipus went mad and put out his eyes.

Oehlenschläger, Adam Gottlob, great Danish poet, born at Copenhagen; his poems first brought him into notice and secured him a travelling pension, which he made use of to form acquaintanceship with such men as Goethe and his literary confrères in Germany, during which time he commenced that series of tragedies on northern subjects on which his fame chiefly rests, which include "Hakon Jarl," "Correggio," "Palnatoke," &c.; his fame, which is greatest in the North, has spread, for he ranks among the Danes as Goethe among the Germans, and his death was felt by the whole nation (1779-1850).

Oehler, Gustav, learned German theologian, professor at Tübingen, eminent for his studies and writings on the Old Testament (1812-1872).

Oeil-de-boeuf, a large reception-room in the palace of Versailles, lighted by a window so called (ox-eye it means), and is the name given in French history to the French Court, particularly during the Revolution period.

Oeland (37), an island off the SE. coast of Sweden, 55 m. long and about 10 m. broad; has good pasture ground, and yields alum; the fisheries good.

Oenonë, a nymph of Mount Ida, near Troy, beloved by and married to Paris, but whom he forsook for Helen; is the subject of one of Tennyson's poems.

Oersted, Hans Christian, a Danish physicist; was professor of Physics in Copenhagen, the discoverer of electro-magnetism, of the compressibility of water, and the metal aluminium; did much to popularise science in a volume entitled "The Soul in Nature" (1777-1851).

Oesel (51), a marshy, well-wooded island at the mouth of the Gulf of Riga, in the Baltic, 45 m. long and 25 m. of average breadth; has some low hills and precipitous coasts; Arensburg (4), on the SE. shore, is the only town; Danish from 1559, the island passed to Sweden in 1645 and to Russia in 1721; the wealthier classes are of German descent.

Offa's Dyke, an entrenchment and rampart between England and Wales, 100 m. long, extending from Flintshire as far as the mouth of the Wye; said to have been thrown up by Offa, king of Mercia, about the year 780, to confine the marauding Welsh within their own territory.

Offenbach, Jacques, a musical composer, born at Cologne, of Jewish parents, creator of the opera bouffe; was the author of "La Belle Hélène," "Orphée aux Enfers," "La Grande Duchesse," "Madame Favart," &c. (1810-1880)

Offertory, in the Roman Catholic Church a portion of the liturgy chanted at the commencement of the eucharistic service, also in the English the part of the service read during the collection of the alms at communion.

Ofterdingen, Heinrich von, a famous minnesinger (q. v.) of the 15th century.

Ogham or Ogam, an alphabet of 20 letters in use among the ancient Irish and Celts, found carved on monumental stones in Ireland, Wales, Cornwall, and the North of Scotland.

Oglethorpe, James Edward, English general, born in London; served in the Marlborough wars, sat in Parliament for several years, conceived the founding of a colony for debtors in prison, and founded Georgia; returning to England, fought against the Pretender, and died in Essex (1696-1785).

Ogowe`, a West African river, 500 m. long, rises in the Akukuja plateau, and following a semicircular course northward and westward enters the Atlantic by a delta at Cape Lopez, its course lying wholly within French Congo territory; in the dry season its volume is much diminished, and its many sandbanks prevent its navigation except by small boats.

O'Groat's House, John. See John o' Groat's House.

Ogyges, a Boeotian autochthon, the legendary first king of Thebes, which is called at times Ogygia, in whose reign a flood, called the Ogygian after him, inundated the land, though some accounts make it occur in Attica.

Ogygia, a mythological island of Homeric legend, situated far off in the sea, and the home of the sorceress Calypso (q. v.).

Ohio (3,672), a State of the American Union, a third larger than Scotland, stretches northward from the Ohio River to Lake Erie, between Pennsylvania and Indiana. It consists of level and undulating plains, on which are raised enormous crops of wheat and maize. Sheep-grazing and cattle-rearing are very extensive; its wool-clip is the largest in America. There are valuable deposits of limestone and freestone, and in output of coal Ohio ranks third of the States. The manufactures are very important; it ranks first in farm implements, and produces also wagons, textile fabrics, and liquors. In the N. excellent fruit is grown. The capital is Columbus (88), the largest city is Cincinnati (297). Admitted to the Union in 1803, it boasts among its sons four Presidents—Grant, Hayes, Garfield, and Benjamin Harrison.

Ohio River, formed by the confluence of the Alleghany and the Monongahela, pursues a westward course of 1000 m., separating Ohio, Indiana, and Illinois from West Virginia and Kentucky, and after receiving sundry tributaries joins the Mississippi, being the largest and, next to the Missouri, the longest of its affluents; it is navigable for the whole of its course; on its banks stand Pittsburg, Cincinnati, Louisville, and Madison.

Ohm, Georg Simon, a German physicist, born at Erlangen; discovered the mathematical theory of the electric current, known as Ohm's Law, a law based on experiment, that the strength of the electric current is equal to the electro-motive force divided by the resistance of the wire (1787-1854).

Ohnet, Georges, French novelist, born in Paris; author of a series of novels in a social interest, entitled "Les Batailles de la Vie;" b. 1848.

Oil City (11), on the Alleghany River, Pennsylvania, by rail 130 m. N. of Pittsburg, is the centre of a great oil-trade and oil-refining industry; there are also engineer and boiler works; it suffered severely from floods in 1892.

Oka, a river of Central Russia, which rises in Orel and flows N., then E., then N. again, joining the Volga at Nijni-Novgorod after a course of over 700 m., navigable nearly all the way; on its banks are Orel, Kaluga, and Riazan, while Moscow stands on an affluent.

Oken, Lorenz, German naturalist; was professor first at Jena, then at Münich, and finally at Zurich, his settlement in the latter being due to the disfavour with which his political opinions, published in a journal of his called the Iris, were received in Germany; much of his scientific doctrine was deduced from a transcendental standpoint or by a priori reasonings; is mentioned in "Sartor" as one with whom Teufelsdröck in his early speculations had some affinity (1779-1851).

Okhotsk, Sea of, an immense sheet of water in Eastern Siberia, lying between the peninsula of Kamchatka and the mainland, with the Kurile Islands stretched across its mouth; is scarcely navigable, being infested by fogs.

Oklahoma (62), a United States territory, stretching southward from Kansas to the Red River, with Texas on the W. and Indian Territory on the E., is a third larger than Scotland, and presents a prairie surface crossed by the Arkansas, Cimarron, and Canadian Rivers, and rising to the Wichita Mountains in the S. There are many brackish streams; the rainfall is light, hence the soil can be cultivated only in parts. Ceded to the United States under restrictions by the tribes of the Indian Territory in 1866, there were various attempts by immigrants from neighbouring States to effect settlements in Oklahoma, which the Government frustrated by military interference, maintaining the treaty with the Indians till 1889, when it finally purchased from them their claim. At noon on April 22, 1889, the area was opened for settlement, and by twilight 50,000 had entered and taken possession of claims. The territory was organised in 1890; embedded in it lies the Cherokee Outlet, still held by the Indians, but on the extinction of their interests to revert to Oklahoma. The chief town is Oklahoma (5).

Okuma, Count, a Japanese, rose into office from the part he took in the Japanese Revolution of 1868, held in succession but resigned the offices of Minister of Finance and of Foreign Affairs, organised the Progressive Party in 1881, and entered office again in 1896; organised in 1898 the first government for a time in Japan on a party basis agreeably to his idea.

Olaf, St., a Norwegian king; wrested the throne from Eric, and set himself to propagate Christianity by fire and sword, excited disaffection among his people, who rebelled and overpowered him with the assistance of Cnut of Denmark, so that he fled to his brother-in-law, Jaroslav of Russia; by his help he tried to recover the throne, put was defeated and slain, his body being buried in Trondhjem; he was canonised in 1164, and is patron saint of Norway.

Olaüs, the name of three early kings of Sweden and of five of Norway, who figured more or less in the history of their respective countries.

Olbers, Heinrich, German astronomer, born near Bremen; discovered five of the comets and the two planetoids Pallas and Vesta (1758-1840).

Old Bailey, a Court or Sessions house adjoining Newgate (q. v.), in London, for the trial of offences committed within a certain radius round the city, and practically presided over by the Recorder and the Common Serjeant of London, though theoretically by the Lord Mayor, Lord Chancellor, and others.

Old Catholics, a section of the Roman Catholic Church in Germany and Switzerland that first announced itself in Münich on the declaration in 1870 of the dogma of the infallibility of the Pope, the prime movers in the formation of the protestation against which were Dr. Döllinger and Professor Friedrich, backed by 44 professors of the university; the movement thus begun has not extended itself to any considerable extent.

Old Man of the Mountain, a name given to Hassan ben Sabbah, the founder in the 11th century and his successors of a formidable Mohammedan dynasty in Syria, whose residence was in the mountain fastnesses of the country, and whose following was known by the name of Assassins (q. v.).

Old Man of the Sea, a monster Sindbad the Sailor encountered on his fifth voyage, who fastened on his back and so clung to him that he could not shake him off till he made him drunk.

Old Mortality, a character in Scott's novel of the name, the original of which was one Robert Paterson, who, as related of him, went about the country visiting the churchyards, and renewing the moss-covered tombs of the Covenanters (q. v.).

Old Noll, an epithet applied by his Royalist contemporaries to Oliver Cromwell.

Oldbuck, Jonathan, the antiquary in Scott's novel of the name, devoted to the study and collection of old coins, a man with an irritable temper, due to disappointment in a love affair.

Oldbury (20), a busy manufacturing town in Worcestershire, 3 m. E. of Dudley, has chemical, iron, and steel works, and factories of various kinds.

Oldcastle, Sir John, Lord Cobham, distinguished himself in arms under Henry IV. in 1411, embraced Lollardism, which he could not be prevailed on to renounce, though remonstrated with by Henry V.; was tried for heresies and committed to the Tower, but escaped to Wales; charged with abetting insurrection on religious grounds, and convicted, his body was hung in chains as a traitor, and in this attitude, as a heretic, burned to death in 1417; he was a zealous disciple of Wiclif, and did much to disseminate his principles.

Oldenburg (355), a German grand-duchy, embracing these three territories: 1, Oldenburg proper, the largest, is let into Hanover with its northern limit on the North Sea; it is a tract of moorland, sand-down, and fen, watered by the Weser, Hunte and tributaries of the Ems; here is the capital, Oldenburg (22), on the Hunte, 30 m. NW. of Bremen, in the midst of meadows, where a famous breed of horses is raised. 2, Lübeck, lying in Holstein, N. of but not including the city of Lübeck. 3, Birkenfeldt, lying among the Hundsrück Mountains, in the S. of Rhenish Prussia; independent since 1180, Danish 1667-1773, Oldenburg acquired Lübeck in 1803, and Birkenfeldt in 1815, when it was raised to the rank of grand-duchy.

Oldham (184), on the Medlock, 7 m. NE. of Manchester, is the largest of the cotton manufacturing towns round that centre; it has 300 cotton mills, and manufactures besides silks, velvets, hats, and machinery; there is a lyceum, and a school of science and art.

Oldys, William, bibliographer, was a man of dissolute life, the illegitimate son of a chancellor of Lincoln; he was librarian to the Earl of Oxford for 10 years, and afterwards received the appointment of Norroy king-of-arms; besides many bibliographical and literary articles, he wrote a "Life of Raleigh" and "The Harleian Miscellany" (1696-1761).

Oléron (17), an island of France, in the Bay of Biscay, at the mouth of the Charente, 11½ m. long and from 3 to 7 broad, is separated from the mainland by a shallow, narrow channel.

Olga, St., a Scandinavian pagan prince, converted to Christianity and baptized as Helena; laboured for the propagation of the Christian faith among his subjects, was canonised after in 905, and is one of the saints of the Russian Church. Festival, July 21.

Olifaunt, Nigel, the hero in Scott's "Fortunes of Nigel."

Oliphant, Laurence, religious enthusiast and mystic, born in Perthshire; spent his boyhood in Ceylon, where his father was chief-justice; early conceived a fondness for adventure, accompanied Lord Elgin to Washington as his secretary, and afterwards to China and Japan; became M.P. for the Stirling Burghs, mingled much in London society, contributed to Blackwood, and wrote "Piccadilly," pronounced by Mrs. Oliphant "one of the most brilliant satires on society ever published"; parliamentary people and parliamentary life being nowise to his liking he soon threw both up for life in a community with Harris at Lake Erie, U.S., whence, after two years' probation, he returned to resume life in the wide world; while in France during the Franco-German War, he married one Alice l'Estrange, an alliance which grew into one of the most intimate character; with her he went to Palestine, pitched his tent under the shadow of Mount Carmel, and wrote two mystical books under her inspiration, which abode with him after she was dead; after her decease he married a Miss Owen, that she might help him in his work, but all she had opportunity to do was to minister to him on his deathbed (1829-1888).

Oliphant, Mrs. Margaret (née Wilson), authoress, born at Wallyford, near Musselburgh, a lady of varied abilities and accomplishments, and distinguished in various departments of literature, began her literary career as a novelist and a contributor to Blackwood, with which she kept up a lifelong connection; her first work which attracted attention was "Passages in the Life of Mrs. Margaret Maitland," and her first success as a novelist was the "Chronicles of Carlingford"; she wrote on history, biography, and criticism, the "Makers of Florence, of Venice, of Modern Rome," "Lives of Dante, Cervantes, and Edward Irving," among other works, and was engaged on a narrative of the publishing-house of Blackwood when she died; she might have distinguished herself more had she kept within a more limited range; her last days were days of sorrow under heavy bereavement (1828-1897).

Olivarez, Count d', a Spanish statesman, born at Rome, where his father was ambassador; was the confidant and minister of Philip IV., and the political adversary of Richelieu; was one of the ablest statesmen Spain ever had, but was unfortunate in his conduct of foreign affairs (1587-1645).

Oliver, a favourite paladin of Charlemagne's, who, along with Roland, rode by his side, and whose name, along with Roland's, has passed into the phrase, a "Roland for an Oliver," meaning one good masterstroke for another, such as both these knights never failed to deliver.

Olives, Mount of, or Mount Olivet, a ridge with three summits, stretching N. and S., E. of Jerusalem, in height 150 ft. above the city, 400 ft. above the intervening valley of Kedron, and 2682 ft. above the sea-level; so called as at one time studded with olive-trees; is celebrated as the scene of some of the most sacred events in the life of Christ.

Ollivier, Émile, French statesman, born at Marseilles; bred for the bar, and eminent at it; became Prime Minister under Louis Napoleon in 1870; precipitated "with a light heart" the country into a war with Germany, to his own overthrow; retired thereafter to Italy, but returned in 1872, and devoted himself to literature; died at Geneva (1825-1876).

Olmütz (20), a strongly fortified city in Moravia, and an important centre of trade, and the former capital of the country; suffered severely in the Thirty and the Seven Years' Wars.

Olympia, a plain in a valley in Elis, on the Peloponnesus, traversed by the river Alpheus, and in which the Olympic Games were celebrated every fifth year in honour of Zeus, and adorned with temples (one to Zeus and another to Hera), statues, and public buildings.

Olympiad, a name given to the period of four years between one celebration of the Olympic Games and another, the first recorded dating from July 776 B.C.

Olympias, the wife of Philip II. of Macedonia, and mother of Alexander the Great; divorced by Philip, who married another, she fled to Epirus, and instigated the assassination of Philip and the execution of her rival; returned to Macedonia on the accession of her son, who always treated her with respect, but allowed her no part in public affairs; on his death she dethroned his successor, but driven to bay in her defence afterwards, she was compelled to surrender the power she had assumed, and was put to death 316 B.C.

Olympic Games, were originally open only to competitors of pure Hellenic descent, and the reward of the victors was but a wreath of wild olive, though to this their fellow-citizens added more substantial honours; they consisted of foot and chariot races, and feats of strength as well as dexterity. See Olympia.

Olympus, a mountain range in Greece, between Thessaly and Macedonia, the highest peak of which is 9750 ft.; the summit of it was the fabled abode of the Greek gods; it is clothed with forests of pine and other trees.

Olney, a little town in Buckinghamshire, associated with the life of Cowper, and where he wrote, along with John Newton, the "Olney Hymns."

Om, a mystic word among the Hindus and Buddhists; presumed to be latent with some magic virtue, and used on solemn occasions as a sort of spiritual charm efficacious with the upper powers, and potent to draw down divine assistance in an hour of need.

Omagh (4), on the Strule, 34 m. S. of Londonderry; is the county town of Tyrone; though a very ancient town it has been rebuilt since 1743, when it was destroyed by fire; it is the head-quarters of the NW. military district.

Omaha (102), chief city of Nebraska, on the W. bank of the Missouri, 20 m. above the confluence of the Platte; is connected by a bridge with Council Bluffs on the opposite shore; it has many fine buildings, including colleges and schools; its silver-smelting works are the largest in the world; it ranks third in the pork-packing industry, and has besides manufactures of linseed oil, boilers, and safes; an important railway centre, it lies midway between the termini of the Union Pacific Railroad; near it are the military head-quarters of the Platte department.

Oman, a territory of Arabia, lying along the shores of the Persian Gulf and the Arabian Sea, round the south-eastern nob of the peninsula; has some stretches of very fertile country where there happens to be water for irrigation, but the coast is very hot and not healthy. The region is subject to the Sultan of Muscat, who is in turn a pensioner of the Anglo-Indian Government.

Omar, the successor of Abu-Bekr, and the second Caliph from 634 to 644; was at first a persecutor of the Faithful, but underwent in 615 a sudden conversion like Said, with a like result; was vizier of Abu-Bekr before he succeeded him; swept and subdued Syria, Persia, and Egypt with the sword in the name of Allah, but is accused of having burned the rich library of Alexandria on the plea that it contained books hostile to the faith of Islam; he was an austere man, and was assassinated by a Persian slave whose wrongs he refused to redress.

Omar Khayyám, astronomer-poet of Persia, born at Naishapur, in Khorassan; lived in the later half of the 11th century, and died in the first quarter of the 12th; wrote a collection of poems which breathe an Epicurean spirit, and while they occupy themselves with serious problems of life, do so with careless sportiveness, intent he on the enjoyment of the sensuous pleasures of life, like an easy-going Epicurean. The great problems of destiny don't trouble the author, they are no concern of his, and the burden of his songs assuredly is, as his translator says, "If not 'let us eat, let us drink, for to-morrow we die.'"

Omar Pasha, general in the Turkish army, was born an Austrian, his proper name Michael Lattas, and educated at the military school of Thurn; guilty of a breach of discipline, he ran away to Bosnia, turned Mohammedan, and henceforth threw in his lot with the Turks; he became writing-master to the Ottoman heir, Abdul-Medjid, and on the succession of the latter in 1839 was made a colonel; he was military governor of Lebanon in 1842, won distinction in suppressing rebellions in Albania, Bosnia, and Kurdistan, but his chief services were rendered in the Russian War; he successfully defended Kalafat in 1853, entered Bucharest in 1854, and defeated 40,000 Russians next year at Eupatoria in the Crimea; his capture of Cetinje, Montenegro, in 1862 was a difficult feat (1806-1871).

O'Meara, Barry Edward, a surgeon, born in Ireland, who accompanied Napoleon to St. Helena, and became his physician, having been surgeon on board the Bellerophon when the emperor surrendered himself; is remembered as the author of "A Voice from St. Helena; or, Napoleon in Exile," a book which from its charges against Sir Hudson Lowe created no small sensation on its appearance (1786-1836).

Ommiades, an Arab dynasty of 14 caliphs which reigned at Damascus from 661 to 720; dethroned by the Abassides, they were under Abder-Rahman I. welcomed in Spain, and they established themselves in Cordova, where they ruled from 756 to 1031.

Omnipresence, an attribute of the Divine Being as all-present in every section of space and moment of time throughout the universe.

Omphalë, a queen of Lydia, to whom Hercules was sold for three years for murdering Iphitus, and who so won his affection that he married her, and was content to spin her wool for her and wear the garments of a woman while she donned and wore his lion's skin.

Omsk (32), capital of Western Siberia, on the Om, at its confluence with the Irtish, 1800 m. E. of Moscow; is within the area of Russian colonisation, and has a military academy, Greek and Roman Catholic cathedrals, and large cattle trade; a number of its inhabitants are political exiles from Europe.

Onega, Lake, in the NW. of Russia, next to Ladoga the largest in Europe, nearly three times the size of Norfolkshire, being 140 m. long and 59 broad; has an irregular shore, deeply indented in the W., many inflowing rivers, but is drained only by the Swir; ice-bound for four months, there is busy traffic the rest of the year; navigation is promoted by canals, but hindered by many reefs; fish abound in the waters.

Onomatopoeia, formations of words resembling in sound that of the things denoted by them.

Ontario (2,114), third largest, most populous, richest, and most important province of Canada, lies N. of the great lakes between Quebec and Manitoba, and is thrice the size of Great Britain; the surface is mostly undulating; there are many small lakes, the chief rivers flow eastward to join the Ottawa; agriculture is the chief industry, enormous crops of wheat, maize, and other cereals are raised; stock-rearing and dairy-farming are important; the climate is subject to less extremes than that of Quebec, but the winter is still severe; there are rich mineral deposits, especially of iron, copper, lead, and silver, petroleum and salt; manufactures of agricultural implements, hardware, textiles, and leather are carried on; Toronto (181) is the largest town, Ottawa (44) is the capital of the Dominion, Hamilton (49) an important railway centre; the prosperity of the province is largely promoted by the magnificent waterways, lakes, rivers, and canals with which it is furnished. Founded by loyalists from the United States after the Declaration of Independence, the province was constituted in 1791 as Upper Canada, united to Quebec or Lower Canada in 1840, it received its present name on the federation of Canada in 1867; education in it is free and well conducted; there are many colleges and universities; municipal and provincial government is enlightened and well organised; the prevalent religious faith is Protestant.

Ontario, Lake, in area almost equal to Wales, is the smallest and easternmost of the five great lakes of the St. Lawrence Basin, North America; it lies between the province of Ontario, Canada, and New York State; receives the Niagara River in the SW., several streams on both sides, and issues in the St. Lawrence in the NE.; on its shores stand Hamilton, Toronto, and Kingston on the N., and Oswego on the S.; canals connect it with Lake Erie and the Hudson River, and it is a busy and always open highway of commerce.

Ontology, another name for metaphysics (q. v.) or the science of pure being, being at its living source in spirit or God, or Nature viewed as divine, especially as the ground of the spiritual in man and giving substantive being to him.

Onyx, a variety of agate or chalcedony, in which occur even layers of white and black or white and brown, sharply defined in good specimens; they come from India, and are highly valued for cameo-cutting.

Oosterzee, Jan Jakob van, a theologian of the Dutch Church, born at Rotterdam; became professor at Utrecht, wrote several theological and exegetical works on evangelical lines (1817-1882).

Opal, a variety of quartz, of which the finest kind, precious opal, is translucent, with blue or yellow tint, and when polished with a convex surface shows an admirable play of colours; it is found chiefly at Cerwenitza, Austria.

Open Secret, The, the secret that lies open to all, but is seen into and understood by only few, applied especially to the mystery of the life, the spiritual life, which is the possession of all.

Open, Sesamë, the magic formula the pronunciation of which opened the robbers' stronghold in the "Arabian Nights."