Graham.—English Political Philosophy. 1899.
Gray, J. C.—The Nature and Sources of the Law. New York, 1909.
Green, T. H.—Lectures on the Principles of Political Obligation. (Collected Works, vol. ii. 3rd ed. 1893.)
Grotius.—De Jure Belli ac Pacis, 1625. Edited, with English translation, by Whewell. Cambridge, 3 vols.
(Grotius confines his attention for the most part to international law, of which he was one of the founders. This work, however, is not without importance with respect to the theory of civil law also.)
Hearn.—The Theory of Legal Duties and Rights. 1883, Melbourne.
Heron.—Introduction to the History of Jurisprudence, 1860.
Hobbes.—Leviathan; or the Matter, Form, and Power of a Commonwealth, Ecclesiastical and Civil. 1651. (English Works, edited by Molesworth, vol. iii. Published separately, Cambridge University Press, 1904.)
De Cive. 1642. (Latin Works, edited by Molesworth. Vol. ii.)
Holdsworth.—History of English Law. 3 vols. 1903–1909.