Cornet, in Muster Roll of 24 June, 1760, in Major John Douglas's troop. Promoted Lieutenant 3 March, 1764. ROBERT DOUNES. Lieutenant, from 19th Light Dragoons, by purchase, 23 October, 1817. FRANCIS DREWE. Cornet, by purchase, 10 November, 1837. Died, 23 July, 1838. HENRY DRUMMOND. In 1681 appointed Ensigne of Strachan's Company. 30 March, 1685, appointed Cornet of Captain John Strachan's Company. 23 August, 1688, appointed Lieutenant of P. Blair's troop. PERCY CHARLES DU CANE. Cornet, from the 4th Dragoon Guards, 16 July, 1858. Lieutenant, by purchase, 30 January, 1863. Captain, by purchase, 30 March, 1866. Retired 16 October, 1866. ARTHUR CAMPBELL DUCKWORTH. Born, 27 September, 1870. 2nd Lieutenant, 31 January, 1894. Lieutenant, 5 December, 1894. GEORGE DUNBAR. Cornet, 11 May, 1705. Captain-Lieutenant, 24 February, 1707-8; in Colonel the Earl of Stair's troop. In 1715 Captain. JAMES BRANDER DUNBAR. Cornet without purchase, 12 January, 1855. Lieutenant by purchase, 25 May, 1855. Captain without purchase, 31 March, 1866. Retired, 19 January, 1870. JOHN DUNBAR. 24 February, 1707-8, Cornet in Patrick Robertson's troop. SIR DAVID DUNDAS. 3rd son of Robert Dundas, a merchant of Edinburgh, was born in 1735, and educated at the Royal Academy at Woolwich. From 1752 to 1755 he assisted General David Watson, his maternal uncle, in the great survey of Scotland. Colonel, 16 May, 1801. General, 29 April, 1802. Resigned, 27 January, 1813, on being appointed Colonel of the 1st Dragoon Guards. In 1754 he was appointed a Lieutenant-Fireworker in the Royal Artillery, and in 1755 a Practitioner-Engineer. In 1756 he was made a Lieutenant in the 56th Regiment, and in the same year was made Assistant Quartermaster-General to General Watson. He threw up his staff appointment in 1758 to join his regiment, ordered on active service, and took part in the attack on St. Malo, the capture of Cherbourg, and the fight at St. Cas. At the close of the same year he joined the Army under Prince Ferdinand of Brunswick, in the threefold capacity of Assistant Quartermaster-General, Engineer, and Lieutenant of Infantry. After the campaign he left Germany, to become a Captain in the 15th Light Dragoons. He was in the battles of Corlach, Warburg, and Clostercampen, the siege of Wesel, the battle of Fellinghausen, and then, in 1762, in the expedition to Cuba. The Seven Years' War over, he became a deep student of his profession, and attended every year manœuvres of the French, Prussian, or Austrian armies. In 1770 he was promoted Major. In 1775 he purchased the Lieutenant-Colonelcy of the 12th Light Dragoons. In 1778 Quartermaster-General in Ireland. In 1781 promoted Colonel. In 1782 made Lieutenant-Colonel of the 2nd Irish Horse. In 1788 he published his valuable work "The Principles of Military Movements." In 1790 he was promoted Major-General, and