Author:George John Douglas Campbell

Works

 * The Reign of Law (1866)
 * Primeval Man (1869)
 * The Eastern Question (1879)
 * The Unity of Nature (1884)
 * Scotland As It Was and As It Is (1887)
 * The Unseen Foundations of Society (1893)
 * Philosophy of Belief (1896)
 * Organic Evolution Cross-examined (1898)
 * Autobiography and Memoirs (1906)