[481] Robison was a mathematician, scientific writer, and lecturer in the field of natural philosophy, of considerable ability and distinction. The son of a Glasgow merchant, he was born in Scotland in 1739. He received the benefits of a thorough education, graduating from Glasgow University in 1756. The connections he enjoyed throughout his life were of the best. Subsequent to his graduation he became tutor to the son of Sir Charles Knowles, the English admiral, and later was appointed by the government to service in the testing out at sea of the newly completed chronometer of John Harrison, the horologist. Still later he went to Russia as private secretary to Sir Charles. While in Russia he was called to the chair of mathematics established in connection with the imperial sea-cadet corps of nobles. Abandoning this post, he returned to Scotland, and in 1773 became professor of natural philosophy in Edinburgh University, lecturing on such subjects as hydro-dynamics, astronomy, optics, electricity, and magnetism. His distinction in this general field seems clearly demonstrated by the fact that he was called upon to contribute to the third edition of the _Encyclopaedia Britannica_ articles on seamanship, the telescope, optics, waterworks, resistance to fluids, electricity, magnetism, music, _etc._, as well as by the fact that when the Royal Society of Edinburgh was organized under royal charter in 1783, Robison was elected general secretary of that distinguished organization, an office he continued to hold until within a few years of his death. The versatility of the man is further evidenced by the fact that he was deeply interested in music, attaining the mastery of several instruments, and in the writing of verse. His reputation was not confined to Great Britain. In 1790 the College of New Jersey (Princeton University) conferred upon him the degree of LL.D. (_Cf._ _General Catalogue of the College of New Jersey_, 1746–1896, p. 177. _The Dictionary of National Biography_, vol. xlix, p. 58, incorrectly gives the date for the bestowal of this degree as 1798.) Later, his alma mater, Glasgow University, bestowed upon him a like honor.