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 574 OCHRA O'CONNELL open plains, preferring woods and thickets. From its smallness, it is little to be feared by the herdsman; but from the beauty and value of the skin, it is always killed when an oppor- tunity occurs. In the linked ocelot (F. catena- ta, H. Smith), by many considered a mere vari- ety of the last, the markings are more length- ened, the ground color more reddish, and the body and limbs stouter. The long-tailed ocelot (F. macroura, Neuwied) is often grayish tawny yellow, paler below, with irregular unenclosed longitudinal markings on the body ; of a total length of 44 in., the tail forms about 19, and is semi-annulated, black at the tip. Another al- lied species, inhabiting, like all the above, South America, is the margay (F. tigrina, Linn.) ; it is 18 in. long, with a tail of 8 in.; the color is tawny yellow, with black lines and bands upon the head, neck, and throat ; the open spots of the body enclose a reddish centre, and are sur- rounded by a black line ; the limbs are spotted and the tail ringed with black. OCHRA. See OKEA. OCHRE, earthy oxide of iron employed with oil as a paint. When obtained as a native product it is intermixed with argillaceous or calcareous earth ; and it is also prepared by the decomposition and oxidation of pyritous ores. Deposits of it are produced about springs that flow from rocky beds which contain decom- posed iron pyrites. The color of the material varies with the degree of oxidation of the iron, and may be changed by heat from yellow to brown and red. The earthy matters present also affect its color, and these may be partial- ly or wholly removed by washing, the heavy sediments remaining behind. For the finer varieties of ochre these sediments are ground in mills. Ochres are sold under a variety of names. The coarser sorts are sometimes known as stone ochres. A kind from the Persian gulf is called Indian red. There are also the Span- ish brown, a yellow variety known as the French ochre, the Oxford and Roman ochres of brownish yellow colors, and others distin- guished merely by the names of their colors. Dr. Thomson says the term ochre is applied to native oxides of cerium, molybdenum, lead, tungsten, chromium, and uranium. OCKLEY, Simon, an English orientalist, born in Exeter in 1678, died at Swavesey, Cam- bridgeshire, Aug. 9, 1720. He was educated at Queen's college, Cambridge, and became vicar of Swavesey in 1705 and professor of Arabic at Cambridge in 1711. His principal work, compiled from Arabic manuscripts in the Bodleian library, is a " History of the Saracens "(2 vols. 8vo, 1708-'18). He dates the second volume from Cambridge castle, where he was imprisoned for debt. His other works include Introductio ad Linguas Orien- tales (1706) and a new translation from the Arabic version of the second " Apocryphal Book of Esdras " (1716). OCMULGEE, a river of Georgia, about 200 m. long, formed by three branches, the South, Yellow, and Ulcofauhachee, which rise in the N. part of the state and unite at the S. corner of Newton co. It flows in a S. S. E. direction till toward its termination, when it sweeps round in a curve to the N. N. E., and joins the Oconee at the S. extremity of Montgomery co., where the two form the Altamaha. It receives the Little Ocmulgee, its principal tributary, about 10 m. from its mouth. It is navigable for steamboats of light draught to Macon, where there is a fall affording great water power. OCONEE, the N. W. county of South Carolina, bounded 1ST. by North Carolina, E. by the Keo- wee river, and separated from Georgia on the west by the Chattooga and Tugaloo rivers; area, about 550 sq. m. ; pop. in 1870, 10,536, of whom 2,422 were colored. The N. part is hilly and mountainous ; the rest is rolling and undulating. The soil of the valleys is fertile. The Blue Ridge railroad terminates at Wal- halla, and the Atlanta and Richmond Air Line railroad crosses the county. The chief pro- ductions in 1870 were 10,533 bushels of wheat, 138,903 of Indian corn, 8,950 of sweet potatoes, 810 bales of cotton, 8,029 Ibs. of wool, and 23,660 of rice. There were 818 horses, 1,578 milch cows, 3,270 other cattle, 4,858 sheep, and 6,502 swine. Capital, Walhalla. OCONEE, a river of Georgia, which rises in Hall co., in the N". E. part of the state, and flows in a S. S. E. direction until its junction with the Ocmulgee to form the Altamaha. Its total length is about 250 m., and it is navigable to Milledgeville, 100 m. above its mouth. O'CONNELL, Daniel, an Irish statesman, born at Carhen, near Cahirciveen, county Kerry, Aug. 6, 1775, died in Genoa, May 15, 1847. He was the eldest son of Morgan O'Connell, a Catholic gentleman. At the age of 13 Daniel was sent to a school at Redington, Long Island, near Cove, or Queenstown as it is now called. Here he remained about a year, and in 1791 he was sent to the Jesuits' college of St. Omer in France, where he first gave indication of talent. In the following year he spent a short time at the English college in Douai ; but on the out- break of the reign of terror he returned home. He was called to the bar in 1798, and soon became distinguished as a brilliant and suc- cessful advocate. .He had no sympathy with the violent revolutionary spirit of the period, which in fact throughout his life he opposed, in accordance with his well known saying that "he would accept of no social amelioration at the cost of a single drop of blood." His first political speech was made at Dublin, Jan. 13, 1800, at a meeting of Catholics to petition against the proposed legislative union between Great Britain and Ireland ; the meeting was broken up by the military. From this period dates his career as a public agitator. In a few years he was in good practice and had gained a high reputation as a barrister. He then be- came gradually absorbed in politics, and was soon the acknowledged leader of political re- form in Ireland. He devoted himself with