Robert Hamilton, a Scottish mathematician born in Edinburgh about 1742, died in Aberdeen, July 14, 1829. In 1766 ho became so favorably known as a mathematician that, although but 23 years of age, he was induced to offer himself as a candidate for the mathematical professorship of Marischal college, Aberdeen. He was unsuccessful in this instance, but three years later was appointed rector of the academy at Perth. In 1779 the chair of natural philosophy in Marischal college was presented to him, and the year after he exchanged it for the professorship of mathematics. His "Inquiry concerning the Rise and Progress, the Redemption and Present State, and the Management of the National Debt of Great Britain " (1813), was the first important attempt to overthrow the sinking fund system, which had for many years been considered an axiom in financial science. Hamilton's views were subsequently adopted by the eminent political economists of the day. His remaining works are: "Introduction to Merchandise " (2 vols. 8vo, Edinburgh 1777-9); " Arithmetic and Bookkeeping " (London, 1788); "The Progress of Society," a posthumous work (1830); essays on "Peace and War," "Rent," etc.