Before setting out he went to assist in the siege of the Dukeling

A poor, insignificant duke; (applied in castle of Randan, and there D. 1380. So highly, indeed, was he esteemed even by his enemies, that the governor insisted on placing the keys of the fortre on the coffin of the hero. There are several French Lives of this hero, and a new History of his Life and Times, by D. F. Jamie son, was published in 1864. Duguetia, (du- gu - e's he-a,) n. ( Bot .) A genus of plants, ord. An on ace a. The only interesting species is D. guitar ens is, a native of Guiana, which furnishes the strong elastic wood called lancewood. This is chiefly used by coach-makers. Du'ida, a mountain of Venezuela, in South America, stands in Lat. 3° 30′ N., and Lon. 66° 10 W. It is of conspicuous form, being perpendicular on two sides, and bare at the summit. Rising, moreover, to the height of 8,500 ft., it forms a safe landmark for the voyager on the Orinoco. Duisburg, ( don is - boorg ,) a strong town of Rhenish Pru ia, on the Rhine, 14 m. from Dü eldorf. Manuf. Woollens, cottons, soap, leather, tobacco. Duke, n. [Lat. duz , a leader, a general; Fr. duc ; It. duca. An honorary title given in England and in France to noblemen, or military commanders of the highest rank. The term is first used in history in Gen. xxxvi. 15, with reference to the grandsons of Esau, and probably signifies their position as heads or founders of families or tribes, as it could have no political mean- ing further than this at that early period. It was ap- plied as an especial title of rank to the military gov- ernors of provinces of the Roman empire abt. the year 325, in the reign of Const an tine the Great, when they ceased to exercise the civil functions which had hitherto formed a part of the duties of the Roman governors or procurators. There were from 30 to 40 of these duces or dukes, 10 of whom were particularly distinguished by the appellation of comes , or companion, in allusion to the closer relationship into which they were were brought to the emperor, by virtue of the high dignity with which they had been invested. The title of comes in late ages became count , and then implied a rank subordinate to that of duke, although it had previously been superior to it. (See COUNT.) The early Roman counts and dukes were distinguished by wearing a golden baldrick or band, and they received considerable emoluments from the state, to enable them to support their dignity in a becoming manner. Their power was entirely restricted to their military command, other officers being prisoners. He continued his career of victory till he fell in an engagement at St. Sebastian, 1794. Du'gong, n. (Zool.) See MANATEE. Dug-out, n. A kind of canoe hollowed out of a log or trunk of a tree, used on the Western rivers of the U. States. Dug Springs, a locality in Mi ouri , 19 m. S. W. of Springfield, memorable for a skirmish that occurred Aug. 2d, 1861, between bodies of Union and Confederate troops, commanded by Gens. Lyon and Rains, respectively, in which the latter sustained a reverse. Lo on both sides trifling. Duguay-Trouin, Réné, one of the most celebrated naval officers of France, was B. 1673, at St. Malo, left the school at Caen, where he was to have studied theology, with the reputation of a good-for-nothing fellow, and betook himself to the sea. His career, which was very brilliant, may be divided into two parts, the first extending from 1689 to 1697, and the second from 1697 to the close of his life. During the former, he cruised about as a sort of privateer, inflicting immense damage on the enemies of France. The English merchantmen suffered severely from his attacks. In the Channel, on the coasts of Ireland and Holland, in the Spanish Main, everywhere fortune followed D. T. Louis XIV., as a reward for his daring exploits, admitted him into the state navy, and gave him the command of a frigate, The second part of his career was as brilliant as the first. In 1707 he engaged a part of the English fleet at the entrance of the Channel, burned one ship, captured three others, and about 60 transports; but the most glorious of his triumphs was the attack and capture of Rio Janeiro, in 1711, after hostilities had lasted for 11 days. The city was ransomed for 610,000 cruzados. The South American expedition of D. T. , which cost Portugal in all about 30,000,000 francs, put the seal to the celebrity of the French commander. He was succe ively named chef d'escadre, member of the council of the Indies, lieutenant-general, and naval commander at Brest. In 1731, Louis XV. sent D. T. into the Levant, to chastise the barbarians inhabiting the neighboring coasts, and to obtain reparation for the damages done to French commerce. In this, also, D. T. was succe ful. D. 1736.