Ridley 3997 Rietschel On the trot the rider must get into the swing of the horse, and learn to rise grace- fully in the saddle to meet the rise of the horse's back, without bumping or permitting too much daylight between himself and the saddle. The army seat in the trot is without rising, and the horse and the rider are one. The stirrups must be longer for this. In the gallop, give the horse perfect freedom with his head, or he may stumble. In jumping, give him a long rein, for on landing he needs his head to recover himself. See Fox HUNT- ING; BRIDLE; SADDLE. Ridley, Nicholas (?i$oo-5s), English re- former, bishop of London, and martyr, son of a Northumberland squire. He received the vicarage of Soham, Cambridgeshire, and was created bishop of Rochester (1547). A leader of the reformed faith, Ridley assisted in compiling the English Prayer Book (1548) and reforming the ecclesiastical law; and on Bonner's deprivation succeeded him as bishop of London (1550). On the accession of Mary he was arrested (March, 1554); was sent to Oxford, with Latimer and Cranmer, to be tried; and was condemned to suffer at the stake. He lav in Bocardo jail at Oxford for eighteen months; and after the formality of a second trial he was burned at the stake (1555), along with Latimer. Consult G. Rid- ley's Life. Riel, Louis (1844-85), Canadian insurg- ent, was educated at the Jesuit College, Montreal and then worked for two years in Minnesota. His father, a Metis or French- Indian half-breed, in 1849 headed their re- volt against the Hudson's Bay Company, which owned the Northwest. In 1869 the Company sold its political rights to the Do- minion of Canada, which sent a host of sur- veyors and officials to take possession, with- out guarantee or explanation to the old resi- dents. The Me"tis rose, ordered the party not to enter, armed several hundred men, and barricaded the road. Riel took the lead, as secretary of a 'Comite National des Metis'; moved his force, into the heavily armed and stocked Fort Garry; and thence terrorized the non-French settlers who refused to join. He styled himself 'president of the Republic of the Northwest/ and had a Bill of Rights drawn up, claiming for the M6tis a share of the payment made to the company. The Dominion Parliament, though victori- ous, embodied this in its Manitoba Act, but Riel outlawed his part in it by the judicial murder of an Ontario Orangeman, Thomas Scott, who stood out. When, the next summer, Col. Garnet Wolseley led an expedition against Riel, the latter's force had all deserted. In 1884 he was invited back to lead a fresh Metis agitation. The claims being refused, he again set up a provisional government (March, 1885), which was soon crushed; and he was taken to Regina, tried, and executed. Riemann, Georg Friedrich Bernhard (1826-66), German mathematician, was born in Breselenz. He contributed to mathematics a non-Euclidean system of geometry, and in- troduced new and valuable theories in con- nection with the study of functions and surfaces. His works include: Grundlagen lur Allgemeine Theorie der Funktionen einer Veranderlichen Complexen Grosse (1851); Ueber die Hypothesen, Welche der Geometric zu Grunde Liegen (posthumously, 1867). Consult Schering's Life, in German. Rienzi, Cola di (i.e., Nicholas son of Lorenzo) (c. 1313-54), Roman popular lead- er, was the son of a tavern keeper. Growing famed for eloquence and patriotic dreams, in 1343 he was made spokesman of a depu- tation to Clement vi., urging his return to Rome, and the grant of a jubilee to bring crowds and money. The latter was secured, and Rienzi was appointed city notary. As the magistrates would reform nothing, he with the Pope's vicar organized a revolution, proclaiming a set of new laws, making him- self supreme ruler as Tribune, and ordering the barons to put down brigandage. Resist- ing him, the latter were either driven out or forced to obey, thus giving Central Italy its only good government for ages before and after. Then a mad vision for his city, a fool- ish attempt to crush his foes, and family am- bition combined to ruin him. He lost heart and resigned, after seven months' rule. Innocent vi., on his accession, sent Rienzi back to Rome to help restore order. He was asked by the chief men to retake power, but the populace rose in sudden insurrection, stormed the palace, and in fleeing he was caught and slain. Rienzi's story rests chiefly on one anonymous but sound and charming contemporary chronicle, and on Petrarch's letters. He is the subject of a novel by Lord Lytton, and of an opera by Wagner. Riesengebirge, the highest range of the Sudetic Mountains, Germany, separating Bo- hemia from Prussian Silesia, and stretching n.w. to s.e. for 23 m,, and from 13 to 16 m. wide. The highest point is Schneekoppe (5,265 ft.). Rietschel, Ernst (1804-61), German sculptor, was born in Pulsnitz, Saxony. From