Roberts, Lord, born at Cawnpore, educated in England; entered the Bengal Artillery in 1851; served throughout the Indian Mutiny, commanded in the Afghan War, and achieved a brilliant series of successes, which were rewarded with honours on his return to England; was made commander-in-chief of the Madras army in 1881, commander-in-chief in India in 1885, and commander of the forces in Ireland in 1895; b. 1832.

Robertson, Frederick William, distinguished preacher, born in London; a graduate of Brasenose College, Oxford, entered the Church in 1840, was curate first at Winchester, next at Cheltenham, and finally settled in Brighton; is known far and wide by his printed sermons for his insight into, and his earnestness in behalf of, Christian truth (1816-1853).

Robertson, Joseph, antiquary, born and educated at Aberdeen; apprenticed to a lawyer, but soon took to journalism, and became editor of the Aberdeen Constitutional, and afterwards of the Glasgow Constitutional; in 1849 was editor of the Edinburgh Evening Courant, and four years later received the post of curator of the historical department of the Edinburgh Register House; author of various historical, antiquarian, and topographical works (1810-1866).

Robertson, Thomas William, a popular dramatist, the son of an actor, born at Newark-on-Trent; brought up amongst actors, he naturally took to the stage, but without success; always ready with his pen, he at last made his mark with "David Garrick," and followed it up with the equally successful "Ours," "Caste," "School," &c. (1829-1871).

Robertson, William, historian, born in Borthwick, Midlothian; was educated in Edinburgh; entered the Church; became minister of Gladsmuir; distinguished himself in the General Assembly of the Church; became leader of the Moderate party; one of the ministers of Greyfriars Church, Edinburgh, and Principal of the University, having previously written his "History of Scotland," which brought him other honours, and which was followed by a "History of Charles V." and a "History of America," all of which contributed to awaken an interest in historical studies; he was what is called a "Moderate" to the backbone, and his cronies were men more of a sceptical than a religious turn of mind, David Hume being one of the number; while his history of Scotland, however well it may be written, as Carlyle testifies, is no history of Scotland at all (1721-1793)

Robespierre, Maximilien, leader of the Jacobins in the French Revolution, born in Arras, of Irish origin; bred to the bar; became an advocate and a judge; he resigned because he could not brook to sentence a man to death; inspired by the gospel of Rousseau, became a red-hot Republican and an "Incorruptible" (q. v.); carried things with a high hand; was opposed by the Girondists, and accused, but threw back the charge on them; carried the mob along with him, and with them at his back procured sentence of death against the king; head of the Committee of Public Safety, he laid violent hands first on the queen and then on all who opposed or dissented from the extreme course he was pursuing; had the worship of reason established in June 1794, and was at the end of the month following beheaded by the guillotine, amid the curses of women and men (1758-1794).

Robin Hood, a famous outlaw who, with his companions, held court in Sherwood Forest, Nottingham, and whose exploits form the subject of many an old English ballad and tale. He was a robber, but it was the rich he plundered and not the poor, and he was as zealous in the protection of the weak as any Knight of the Round Table; he was an expert in the use of the bow and the quarter-staff (q. v.), and he and his men led a merry life together.

Robins, Benjamin, father of the modern science of artillery, born, the son of a Quaker, at Bath; established himself in London as a teacher of mathematics, as also his reputation by several mathematical treatises; turned his attention to the theoretical study of artillery and fortification; upheld Newton's principle of ultimate ratios against Berkeley, and in 1742 published his celebrated work, the "New Principles of Gunnery," which revolutionised the art of gunnery; was appointed engineer-in-general to the East India Company (1749), and planned the defences of Madras (1707-1751).

Robinson, Edward, Biblical scholar, born in Connecticut; author of "Biblical Researches in Palestine"; a professor in New York (1794-1863).

Robinson, Henry Crabb, literary dilettante, born at Bury St. Edmunds; lived some years at Weimar, and got acquainted with Goethe and his circle; called to the English bar, and on quitting practice at it with a pension, became acquainted with the literary notabilities in London, and left a diary full of interesting reminiscences (1775-1807).

Robinson, Hercules George Robert, Lord Rosmead, born, son of an admiral, in 1824; withdrew from the army shortly after his first commission, and gave himself to Government Colonial service; received a knighthood, and held Governorship of Hong-Kong in 1859; was successively governor of Ceylon, New South Wales, New Zealand, Cape of Good Hope, &c.; created Lord Rosmead in 1896 (1824-1898).

Robinson, Mary, poetess, born at Leamington; author of various poetical works, a translation of Euripides' "Hippolytus," a Life of Emily Brontë, &c.; married in 1886 to M. Darmesteter, a noted French Orientalist; b. 1857.

Robson, Frederick (stage name of F. R. Brownhill), a noted comedian, born at Margate; took to the stage in 1844 after serving some time as an apprentice to a London engraver; his greatest triumphs were won after 1853 on the boards of the Olympic Theatre, London; he combined in a high degree all the gifts of a low comedian with a rare power of rising to the grave and the pathetic (1821-1864).

Rochambeau, Comte de, marshal of France, born at Vendôme; commanded the troops sent out by France to assist the American colonies in their rebellion against the mother-country (1725-1807).

Rochdale (72), a flourishing town and cotton centre in Lancashire, prettily situated on the Roche, 11 m. NE. Of Manchester; its woollen and cotton trade (flannels and calicoes) dates back to Elizabeth's time; has an interesting 12th century parish church.

Roche, St., the Patron saint of the plague-stricken; being plague-smitten himself, and overtaken with it in a desert place, he was discovered by a dog, who brought him a supply of bread daily from his master's table till he recovered.

Rochefort, Comte de, commonly known as Henri Rochefort, French journalist and violent revolutionary, who was deported for his share in the Commune in 1871, but escaped and was amnestied, and went back to Paris under eclipse; b. 1830.

Rochelle, La (23), a fortified seaport of France, on an inlet of the Bay of Biscay, 95 m. NW. of Bordeaux; capital of the department of Charente-Inférieure; has a commodious harbour, noteworthy public buildings, a fine promenade and gardens; shipbuilding, glass-works, sugar-refineries, &c., are among its chief industries.

Rochester, 1, an interesting old city (26), of Kent, 29 m. SE. of London, on the Medway, lying between and practically forming one town with Strood and Chatham; the seat of a bishop since 604; has a fine cathedral, which combines in its structure examples of Norman, Early English, and Decorated architecture; a hospital for lepers founded in 1078; a celebrated Charity House, and a strongly posted Norman castle. 2, Capital (163), of Monroe County, New York, on the Genesee River, near Lake Ontario, 67 m. NE. of Buffalo; is a spacious and well-appointed city, with a university, theological seminary, &c.; has varied and flourishing manufactures.

Rochester, John Wilmot, Earl of, a witty profligate of the court of Charles II.; wrote poems, many of them licentious, among them, however, some exquisite songs; killed himself with his debauchery; died penitent; he was the author of the epitaph, accounted the best epigram in the English language, "Here lies our sovereign Lord the king," &c. (1648-1680).

Rochet, a linen vestment worn by bishops, abbots, and other dignitaries, in the form of a surplice, but shorter and open at the sides.

Rock Island (14), capital of Rock Island county, Illinois, on the Mississippi; a busy centre of railway and river traffic; derives its name from an island in the river, where there is an extensive Government arsenal; a fine bridge spans the river.

Rock Temples, temples hewn out of solid rock, found in Western India especially, such as those at Ellora (q. v.) and Elephanta (q. v.).

Rockall, a remarkable peak of granite rock, rising some 70 ft. above the sea-level from the bed of an extensive sandbank in the Atlantic, 184 m. W. of St. Kilda; a home and haunt for sea-birds.

Rock-butter, a soft mineral substance found oozing from alum slates, and consisting of alum, alumina, and oxide of iron.

Rockford (24), a busy manufacturing town, capital of Winnebago County, Illinois, on the Rock River, 86 m. NW. of Chicago.

Rockhampton (12), the chief port of Central Queensland, Australia, on the Fitzroy, 35 m. from its mouth; in the vicinity are rich gold-fields, also copper and silver; engaged in tanning, meat-preserving, &c.; is connected by a handsome bridge with its suburb North Rockhampton.

Rocking Stones or Logans, large stones, numerous in Cornwall, Wales, Yorkshire, &c., so finely poised as to rock to and fro under the slightest force.

Rockingham, Charles Watson Wentworth, Marquis of, statesman, of no great ability; succeeded to the title in 1750; opposed the policy of Bute, and headed the Whig opposition; in 1762 became Prime Minister, and acted leniently with the American colonies, repealing the Stamp Act; was a bitter opponent of North's American policy of repression; held the Premiership again for a few months in 1782 (1730-1782).

Rocky Mountains, an extensive and lofty chain of mountains in North America, belonging to the Cordillera system, and forming the eastern buttress of the great Pacific Highlands, of which the Sierra Nevada and Cascade Mountains form the western buttress, stretching in rugged lines of almost naked rock, interspersed with fertile valleys, from New Mexico through Canada to the Arctic Ocean, broken only by a wonderfully beautiful tract of elevated plateau in southern Wyoming, over which passes the Union Pacific Railroad; reaches its greatest height in Colorado (Gray's Peak, 14,341 ft.); gold, silver, &c., are found abundantly.

Rococo, name given to a debased style of architecture, overlaid with a tasteless, senseless profusion of fantastic ornamentation, without unity of design or purpose, which prevailed in France and elsewhere in the 18th century.

Rocroi (2), a small fortified town of France, about 3 m. from the Belgian frontier, in the dep. of Ardennes; memorable for a great victory of the French under Condé over the Spaniards in 1643.

Rodbertus, Johann Karl, Socialist, born in Greifswald; believed in a Socialism that would in course of time realise itself with the gradual elevation of the people up to the Socialistic ideal (1815-1875).

Roderic, the last king of the Visigoths in Spain, was slain in battle with the Moors, who had invaded Spain during a civil war, and his army put to flight in 711.

Roderick Random, the hero of a novel of Smollett's, a young Scotch scapegrace, rough and reckless, and bold enough.

Rodez (15), a town of France, in the dep. of Aveyron; crowns an eminence at the foot of which flows the Aveyron, 80 m. NE. of Toulouse; has a beautiful Gothic cathedral, interesting Roman remains; manufactures textiles, leather, paper, &c.

Rodin, Auguste, eminent French sculptor, born in Paris, distinguished for his statues and busts; b. 1840-1917.

Rodney, Lord, English admiral, born at Walton-on-Thames; entered the navy at the age of 12, and obtained the command of a ship in 1742; did good service in Newfoundland; was made Admiral of the Blue in 1759, and in that year destroyed the stores at Havre de Grace collected for the invasion of England; in 1780 defeated the Spanish fleet off Cape St. Vincent; in 1782 defeated the French fleet under Count de Grasse by breaking the enemy's line; was first made a baronet and then a peer, with a pension of £2000, for his services to the country (1718-1792).

Rodosto (19), a Turkish town on the N. coast of the Sea of Marmora, 60 m. W. of Constantinople; is the seat of an archbishop of the Greek Church, has many mosques; fruitful vineyards in the vicinity produce excellent wine.

Rodriguez (2), an interesting volcanic island lying far out in the Indian Ocean, 380 m. NE. of Mauritius, of which it is a dependency; agriculture is the chief employment; has a good climate, but is subject to severe hurricanes.

Roe, Edward Payson, American novelist, born in New Windsor, New York; studied for the ministry and served as a chaplain during the Civil War; settled down as a pastor of a Presbyterian church at Highland Fells; made his mark as a novelist in 1872 with "Barriers Burned Away"; took to literature and fruit-gardening, and won a wide popularity with such novels as "From Jest to Earnest," "Near to Nature's Heart," &c. (1838-1888).

Roebuck, John Arthur, English Radical politician, born at Madras; represented first Bath and then Sheffield in Parliament, contributed to the downfall of the Aberdeen Government, and played in general an independent part; his vigorous procedure as a politician earned for him the nickname of "Tear 'em" (1802-1879).

Roermond (12), an old Dutch town in Limburg, at the confluence of the Roer and the Meuse, 29 m. N. by E. of Maestricht; has a splendid 13th-century cathedral; manufactures cottons, woollens, &c.

Roeskilde, an interesting old Danish city, situated on a fjord, 20 m. W. by S. of Copenhagen, dates back to the 10th century; has a fine 13th-century cathedral, the burying-place of most of the Danish kings.

Rogation Days, the Monday, Tuesday, and Wednesday preceding Ascension Day, on which special litanies are sung or recited by the Roman Catholic clergy and people in public procession; has its origin in an old custom dating from the 6th century. In England the practice ceased after the Reformation.

Roger I., the youngest of the 12 sons of Tancred of Hauteville; conquered Sicily from the Saracens after a war of 30 years, and governed it under the title of count in part from 1071 and wholly from 1089 to 1101.

Roger II., son and successor of the preceding, was crowned king of the two Sicilies by the Pope; waged war advantageously against the Emperor of the East and the Saracens of North Africa; ruled the country well and promoted industry (1097-1154).

Roger of Wendover, an early English chronicler, lived in the 13th century; was a monk of St. Albans and subsequently prior of Belvoir; wrote a history of the world down to Henry III.'s reign, the only valuable portion of it being that which deals with his own times.

Rogers, Henry, English essayist; contributed for years to the Edinburgh Review; author of the "Eclipse of Faith" (1806-1877).

Rogers, James E. Thorwold, political economist, born in Hampshire; became professor of Political Economy at Oxford; author of a "History of Agriculture and Prices in England" and "Six Centuries of Work and Wages," an abridgment of it (1823-1890).

Rogers, John, the first of the Marian martyrs, born at Birmingham; prepared a revised edition of the English Bible, preached at Paul's Cross against Romanism the Sunday after Mary's entrance into London, and was after a long imprisonment tried for heresy, and condemned to be burned at Smithfield (1505-1555).

Rogers, Samuel, English poet, born in London, son of a banker, bred to banking, and all his life a banker—took to literature, produced a succession of poems: "The Pleasures of Memory" in 1792, "Human Life" in 1819, and "Italy," the chief, in 1822; he was a good conversationalist, and told lots of good stories, of which his "Table-Talk," published in 1856, is full; he issued at great expense a fine edition of "Italy" and early poems, which were illustrated by Turner and Stothard, and are much prized for the illustrations (1763-1855).

Roget, Peter Mark, physician, born in London; was professor of Physiology at the Royal Institution; wrote on physiology in relation to natural theology; was author of a "Thesaurus of English Words and Phrases" (1779-1869).

Rohan, Prince Louis de, a profligate ecclesiastic of France who attained to the highest honours in the Church; became archbishop and cardinal, but who had fallen out with royalty; was debarred from court, tried every means to regain the favour of Marie Antoinette, which he had forfeited, was inveigled into buying a necklace for her in hope of thereby winning it back, found himself involved in the scandal connected with it, and was sent to the Bastille (1783-1803). See "Diamond Necklace" in Carlyle's "Miscellanies."

Rohilkhand (5,343), a northern division of the North-West Provinces, British India; is a flat, well-watered, fertile district, crossed by various railways; takes its name from the Rohillas, an Afghan tribe, who had possession of it in the 18th century.

Rohillas (i. e. hillmen), a tribe of Afghans who settled in a district N. of Oudh, called Rohilkhand after them, and rose to power in the 18th century, till their strength was broken by the British in 1774.

Rohlfs, F. Gerard, German traveller, born near Bremen, travelled in various directions through North Africa; undertook missions to Abyssinia, and has written accounts of his several journeys; b. 1832.

Rokitansky, Baron, eminent physician, born at Königgrätz, professor of Pathological Anatomy at Vienna, and founder of that department of medicine (1804-1878).

Roland, one of the famous paladins of Charlemagne, and distinguished for his feats of valour, who, being inveigled into the pass of Roncesvalles, was set upon by the Gascons and slain, along with the flower of the Frankish chivalry, the whole body of which happened to be in his train.

Roland, Madame, a brave, pure-souled, queen-like woman with "a strong Minerva face," the noblest of all living Frenchwomen, took enthusiastically to the French Revolution, but when things went too far supported the Moderate or Girondist party; was accused, but cleared herself before the Convention, into whose presence she had been summoned, and released; but two days after was arrested, imprisoned in Charlotte Corday's apartments, and condemned; on the scaffold she asked for pen and paper "to write the strange thoughts that were rising in her," which was refused; looking at the statue of Liberty which stood there, she exclaimed bitterly before she laid her head on the block, "O Liberty, what crimes are done in thy name!" (1754-1793).

Roland de la Platière, Jean Marie, husband of Madame Roland, was Inspector of Manufactures at Lyons; represented Lyons in the Constituent Assembly; acted with the Girondists; fled when the Girondist party fled, and on hearing of his wife's fate at Rouen bade farewell to his friends who had sheltered him, and was found next morning "sitting leant against a tree, stiff in the rigour of death, a cane-sword run through his heart" (1732-1793).

Rollin, Charles, French historian, born in Paris; rector of the University; wrote "Ancient History" in 13 vols., and "Roman History" in 16 vols., once extremely popular, but now discredited and no longer in request (1661-1741).

Rollo, a Norwegian, who became the chief of a band of Norse pirates who one day sailed up the Seine to Rouen and took it, and so ravaged the country that Charles the Simple was glad to come to terms with them by surrendering to them part of Neustria, which thereafter bore from them the name of Normandy; after this Rollo embraced Christianity, was baptized by the Bishop of Rouen, and was the first Duke of Normandy (860-932).

Romagna, the former name of a district in Italy which comprised the NE. portion of the Papal States, embracing the modern provinces of Ferrara, Bologna, Ravenna, and Forli.

Romaine, William, evangelical divine of the English Church, born at Hartlepool, author of works once held in much favour by the evangelicals, entitled severally "The Life, the Walk, and the Triumph of Faith" (1714-1795).

Roman Empire, Holy, or the Reich, the name of the old German Empire which, under sanction of the Pope, was established by Otho the Great in 962, and dissolved in 1806 by the resignation of Francis II., Emperor of Austria, and was called "Holy" as being Christian in contrast with the old pagan empire of the name.

Romance Languages, the name given to the languages that sprung from the Latin, and were spoken in the districts of South Europe that had been provinces of Rome.

Romanes, George John, naturalist, born at Kingston, Canada; took an honours degree in science at Cambridge; came under the influence of Darwin, whose theory of evolution he advocated and developed in lectures and various works, e. g. "Scientific Evidences of Organic Evolution," "Mental Evolution in Animals," "Mental Evolution in Man"; his posthumous "Thoughts on Religion" reveal a marked advance from his early agnosticism towards a belief in Christianity; founded the Romanes Lectures at Oxford (1848-1894).

Romanoff, the name of an old Russian family from which sprung the reigning dynasty of Russia, and the first Czar of which was Michael Fedorovitch (1613-1645).

Romans (17), a town in the dep. Drôme, France, on the Isère, 12 m. NE. of Valence; a 9th-century bridge spans the river to the opposite town Péage; has a 9th-century abbey; manufactures silk, &c.

Romans, Epistle to the, an epistle written from Corinth, in the year 59, by St. Paul to the Church at Rome to correct particularly two errors which he had learned the Church there had fallen into, on the part, on the one hand, of the Jewish Christians, that the Gentiles as such were not entitled to the same privileges as themselves, and, on the other hand, of the Gentile Christians, that the Jews by their rejection of Christ had excluded themselves from God's kingdom; and he wrote this epistle to show that the one had no more right to the grace of God than the other, and that this grace contemplates the final conversion of the Jews as well as the Gentiles. The great theme of this epistle is that faith in Christ is the one way of salvation for all mankind, Jew as well as Gentile, and its significance is this, that it contains if not the whole teaching of Paul, that essential part of it which presents and emphasises the all-sufficiency of this faith.

Romanticism, the name of the reactionary movement in literature and art at the close of last century and at the beginning of this against the cold and spiritless formalism and pseudo-classicism that then prevailed, and was more regardful of correctness of expression than truth of feeling and the claims of the emotional nature; has been defined as the "reproduction in modern art and literature of the life and thought of the Middle Ages."

Rome (423), since 1871 capital of the modern kingdom of Italy (q. v.), on the Tiber, 16 m. from its entrance into the Tyrrhenian Sea; legend ascribes its foundation to Romulus in 753 B.C., and the story of its progress, first as the chief city of a little Italian kingdom, then of a powerful and expanding republic (510 B.C. to 30 B.C.), and finally of a vast empire, together with its decline and fall in the 5th century (476 A.D.), before the advancing barbarian hordes, forms the most impressive chapter in the history of nations; as the mother-city of Christendom in the Middle Ages, and the later capital of the Papal States (q. v.) and seat of the Popes, it acquired fresh glory; it remains the most interesting city in the world; is filled with the sublime ruins and monuments of its pagan greatness and the priceless art-treasures of its mediæval period; of ruined buildings the most imposing are the Colosseum (a vast amphitheatre for gladiatorial shows) and the Baths of Caracalla (accommodated 1600 bathers); the great aqueducts of its Pre-Christian period still supply the city with water from the Apennines and the Alban Hills; the Aurelian Wall (12 m.) still surrounds the city, enclosing the "seven hills," the Palatine, Capitoline, Aventine, &c., but suburbs have spread beyond; St. Peter's is yet the finest church in the world; the Popes have their residence in the Vatican; its manufactures are inconsiderable, and consist chiefly of small mosaics, bronze and plaster casts, prints, trinkets, &c.; depends for its prosperity chiefly on the large influx of visitors, and the court expenditure of the Quirinal and Vatican, and of the civil and military officials.

Romford (8), an old market-town of Essex, on the Bourne or Rom, 12 m. NE. of London; noted for its cattle and corn markets; industries include brewing, market-gardening, foundries, &c.

Romilly, Sir Samuel, English lawyer, born in London, of a Huguenot family; was a Whig in politics, and was Solicitor-General for a time; devoted himself to the amendment of the criminal law of the country, and was a zealous advocate against slavery and the spy system (1751-1818).

Romney, George, English portrait-painter, born in Lancashire; married at Kendal, left his wife and two children there, and painted portraits in London for 35 years in rivalry with Reynolds and Gainsborough, and retired at the end of that time to Kendal to die, his wife nursing him tenderly, though in the whole course of the term referred to, he had visited her only twice (1734-1862).

Romney, New (1), one of the old Cinque Ports (q. v.), in S. Kent, 8 m. SW. of Hythe; the sea has receded from its shores, leaving it no longer a port; as centre of a fine pastoral district it has an important sheep fair; the little village of Old Romney lies 1½ m. inland.

Romola, a novel by George Eliot, deemed her greatest by many, being "a deep study of life in the city of Florence from an intellectual, artistic, religious, and social point of view."

Romsay (4), a town in Hampshire, on the Test, 8 m. NW. of Southampton; has a remarkably fine old Norman church and a corn exchange; birthplace of Lord Palmerston.

Romulus, legendary founder of Rome, reputed son of Mars and Rhea Silvia (q. v.), daughter of Numitor, king of Alba Longa; exposed at his birth, along with Remus, his twin-brother (q. v.); was suckled by a she-wolf and brought up by Faustulus, a shepherd; opened an asylum for fugitives on one of the hills of Rome, and founded the city in 753 B.C., peopling it by a rape of Sabine women, and afterwards forming a league with the Sabines (q. v.); he was translated to heaven during a thunderstorm, and afterwards worshipped as Quirinus, leaving Rome behind him as his mark.

Ronaldshay, North and South, two of the Orkney Islands; North Ronaldshay is the most northerly of the Orkney group; South Ronaldshay (2) lies 6¼ m. NE. of Duncansby Head; both have a fertile soil, and the coast fisheries are valuable.

Roncesvalles, a valley of the Pyrenees, 23 m. NE. of Pampeluna, where in 775 the rear of the army of Charlemagne was cut in pieces by the Basques, and Roland (q. v.) with the other Paladins was slain.

Ronda (19), one of the old Moorish towns of Spain, built amid grand scenery on both sides of a great ravine (bridged in two places), down which rushes the Guadiaro, 43 m. W. of Malaga; is a favourite summer resort.

Rondeau, a form of short poem (originally French) which, as in the 15th century, usually consists of 13 lines, eight of which have one rhyme and five another; is divided into three stanzas, the first line of the rondeau forming the concluding line of the last two stanzas; Swinburne has popularised it in modern times.

Rondo, a form of musical composition which corresponds to the rondeau (q. v.) in poetry; consists of two or more (usually three) strains, the first being repeated at the end of each of the other two, but it admits of considerable variation.

Ronsard, Pierre, celebrated French poet, born near Vendôme; was for a time attached to the Court; was for three years of the household of James V. of Scotland in connection with it, and afterwards in the service of the Duke of Orleans, but having lost his hearing gave himself up to literature, writing odes and sonnets; he was of the Pléiade school of poets (q. v.), and contributed to introduce important changes in the idiom of the French language, as well as in the rhythm of French poetry (1521-1585).

Röntgen, Wilhelm Konrad von, discoverer of the Röntgen rays, born at Lennep, in Rhenish Prussia; since 1885 has been professor of Physics at Würzburg; his discovery of the X-rays was made in 1898, and has won him a wide celebrity; b. 1845.

Röntgen Rays, described by Dr. Knott as "rays of light that pass with ease through many substances that are optically opaque, but are absorbed by others." "For example," he says, "the bony structures of the body are much less transparent than the fleshy parts; hence by placing the hand between a fluorescent screen and the source of these rays we see the shadow of the skeleton of the hand with a much fainter shadow of the flesh and skin bordering it." See Dr. Knott's "Physics."

Rooke, Sir George, British admiral, born at Canterbury; distinguished himself at the battle of Cape La Hogue in 1692; in an expedition against Cadiz destroyed the Plate-fleet in the harbour of Vigo in 1702; assisted in the capture of Gibraltar from the Spaniards in 1704, and fought a battle which lasted a whole day with a superior French force off Malaga the same year (1650-1709).

Roon, Count von, Prussian general, born in Pomerania; was Minister of War in 1859 and of Marine in 1861; was distinguished for the important reforms he effected in the organisation of the Prussian army, conspicuous in the campaigns of 1866 and 1871-72 (1803-1879).

Root, George Frederick, a popular American song-writer, born at Sheffield, Massachusetts; was for some time a music teacher in Boston and New York; took to song writing, and during the Civil War leaped into fame as the composer of "Tramp, tramp, tramp the Boys are Marching," "Just before the Battle, Mother," "The Battle Cry of Freedom," and other songs; was made a Musical Doctor by Chicago University in 1872 (1820-1895).

Root and Branch Men, name of a party in the Commons who in 1641 supported a petition for the abolition of Episcopacy in England, and even carried a bill through two readings, to be finally thrown out.

Ropemaker, The Beautiful. See Labé, Louise.

Rorke's Drift, a station on the Tugela River, Zululand, the defence of which was on the night of the 24th January 1879 successfully maintained by 80 men of the 24th Regiment against 4000 Zulu warriors.

Rosa, Carl, father of English opera, born at Hamburg; introduced on the English stage the standard Italian, French, and German operas with an English text (1842-1889).

Rosa, Salvator, Italian painter, born near Naples, a man of versatile ability; could write verse and compose music, as well as paint and engrave; his paintings of landscape were of a sombre character, and generally representative of wild and savage scenes; he lived chiefly in Rome, but took part in the insurrection of Masaniello at Naples in 1647 (1615-1673).

Rosamond, Fair, a daughter of Lord Clifford, and mistress of Henry II., who occupied a bower near Woodstock, the access to which was by a labyrinth, the windings of which only the king could thread. Her retreat was discovered by Queen Eleanor, who poisoned her.

Rosario (51), an important city of the Argentine Republic, on the Paraná, 190 m. NW. of Buenos Ayres; does a large trade with Europe, exporting wool, hides, maize, wheat, &c.

Rosary, a string of beads used by Hindus, Buddhists, Mohammedans, and Roman Catholics as an aid to the memory during devotional exercises; the rosary of the Roman Catholics consists of beads of two sizes, the larger ones mark the number of Paternosters and the smaller the number of Ave Marias repeated; of the former there are usually five, of the latter fifty.

Rosas, Jean Manuel, Argentine statesman, born at Buenos Ayres; organised the confederation, became dictator, failed to force the Plate River States into the confederation, and took refuge in England, where he died (1793-1877).

Roscher, Wilhelm, distinguished political economist, born at Hanover, professor at Göttingen and Leipzig, the head of the historical school of political economy; his chief work a "System of Political Economy" (1817-1894).

Roscius, Quintus, famous Roman comic actor, born near Lanuvium, in the Sabine territory; was a friend of Cicero, and much patronised by the Roman nobles; was thought to have reached perfection in his art, so that his name became a synonym for perfection in any profession or art.

Roscoe, Sir Henry, chemist, born in London, grandson of succeeding, professor at Owens College, Manchester; author of treatises on chemistry; b. 1834.

Roscoe, William, historian, born in Liverpool; distinguished as the author of the "Life of Lorenzo de' Medici" and of "Leo X.," as well as of "Handbooks of the Italian Renaissance" and a collection of poems (1753-1831).