Charles Arthur Campbell was born in 1897. He held the post of professor of logic and rhetoric at the University of Glasgow from 1938 to 1961, and delivered the Gifford Lectures at the University of St Andrews from 1953 to 1955. His publications include Scepticism and Construction: Bradley’s Sceptical Principle as the Basis of Constructive Philosophy (1931),Moral Intuition and the Principle of Self-Realization (1952), and Is ‘Free-Will' a Pseudo-Problem? (1967).