Paul Vinogradoff (ed.), Oxford Studies in Social and Legal History: Vol. 4: W . T . Barbour, The history of contract in early English Equity; Gr. W. Coopland, The abbey of Saint-Bertin and its neighbourhood 800 – 1350. V o l . 5 : A. E. Levett - A . Ballard, The Black Death on the estates of the see of Winchester; R. Lennard, Rural Northamptonshire under the Commonwealth. Vol. 6: H. M. Cam, Studies in the Hundred Rolls, some aspects of thirteenth-century administration; L. Ehrlich, Proceedings against the Crown (1216–1377)