Available now at AbeBooks.co.uk - Hardcover - Edinburgh: For Archibald Constable and Company, 1817. - 1817 - 1st Edition - Sir John Leslie (1766-1832) was a professor of mathematics and natural philosophy at the University of Edinburgh, where he had himself studied under Dugald Stewart. He is best known for An Experimental Inquiry into the Nature and Propagation of Heat (1804), which established several fundamental laws of heat radiation and played a major role in the early nineteenth-century argument about whether heat was a form of matter or a mode of motion, though the Philosophy of Arithmetic one of "his most important books" (Richard G. Olson, writing in the D.S.B). He was a contributor to the Encyclopedia Britannica and the Edinburgh Review. Augustus De Morgan considered Leslie one of the few writers on the history of mathematics who attempted to show the progress of arithmetical writings as works of science. Octavo. iv, 240 pp. Large folding table; numerous mathematical