[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.