Among the original works by mediaeval writers on economic subjects, which can be found in most of the greater libraries in England, we would place the following:

De Recuperatione Terre Sancte, by Pierre du Bois. Edited by C. V. Langlois in Paris. 1891.

Commentarium in Politicos Aristotelis, by Albertus Magnus. Vol. iv. Lyons. 1651.

Summa Theologica, of St. Thomas Aquinas. This is being translated by the English Dominicans, published by Washborne. London. 1911. But the parts that deal with Aquinas' theories of property, &c., have not yet been published.

De Regimine Principio, probably by Ptolomeo de Lucca. It will be found printed among the works of St. Thomas Aquinas, who wrote the first chapters. The portion here to be consulted is in book iv.

Tractatus de Civili Dominio, by Wycliff, published in four vols. in London. 1885-1904.

Unprinted Works of John Wycliff, edited at Oxford in three vols. 1869-1871.

Fasciculus Zizaniorum and the Chronicon Angliae, both edited in the Roll Series, help in elucidating the exact meaning of Wycliff, and his relation to the insurgents of 1381.

Monarchia, edited by Goldast of Hanover in 1611, gives a collection of fifteenth-century writers, including Ockham, Cesena, Roselli, &c.

Summa Moralis, by St. Antonino of Florence, contains a great deal of economic moralising. But the whole four volumes (Verona, 1740) must be searched for it.

Among modern books which can be consulted with profit are:—

Illustrations of the Mediaeval Thought, by Reginald Lane Poole. 1884. London.

Political Theories of the Middle Ages, by F. W. Maitland. 1900. Cambridge.

History of Mediaeval Political Thought, by A. J. Carlyle. 1903. &c. Oxford (unfinished).

History of English Law, by Pollock and Maitland. 1898. Cambridge.

Introduction to English Economic History, by W. J. Ashley. 1892. London.

Economie Politique au Moyen Age, by V. Brandts. 1895. Louvain.

La PropriÉtÉ aprÈs St. Thomas, by Mgr. Deploige, Revue Neo-Scholastique. 1895, 1896. Louvain.

History of Socialism, by Thomas Kirkup. 1909. London.

Great Revolt of 1381, by C. W. C. Oman. 1906. Oxford.

Lollardy and the Reformation, by Gairdner. 1908-1911 (three vols.) London.

England in the Age of Wycliff, by G. M. Trevelyan. 1909. London.

Leaders of the People, by J. Clayton. 1910. London. A sympathetic account of Ball, Cade, &c.

Social Organisation, by G. Unwin. 1906. Oxford.

Outlines of Economic History of England, by H. O. Meredith. 1908. London.

Mutual Aid in a Mediaeval City, by Prince Kropotkin (Nineteenth Century Review. Vol. xxxvi. p. 198).