As Marquis of Lorne took a great interest in the movement which led to the Disruption of the Church of Scotland in 1843, a Whig in politics, was a member of the Cabinets of Aberdeen, Palmerston, and Gladstone; of late has shown more Conservative tendencies; takes a deep interest in the scientific theories and questions of the time; wrote, among other works, a book in 1866 entitled "The Reign of Law," in vindication of Theism, and another in the same interest in 1884 entitled "The Unity of Nature"; b. 1824.