THE RIVER-WALLS OF ESSEX. 283 From time to time Commissioners were appointed to view and report on the condition of the walls or to order repairs where necessary. During the fifty years' reign of Edward III there are records of such in 1321, 1324, 1354, 1368 and 1376. They probably indicate that the older walls were then becoming worn down or neglected and that local flooding had ensued which demanded urgent action. [The serious results of long- continued neglect of repair were seen in the breach of the river-wall at Dagenham in December 1707, which cost altogether some £80,000 to seal off and which resulted in the formation of an inland lake of some 40 acres in extent where before had been grazing ground!] In 1397 a Charter granted by Richard II speaks of "the overflowing of water" as a chief contributory cause of the then poverty of Stratford Langthorne Abbey. This indicates either a serious breach of walls then existing or the need of additional walls as subsidence of the land went on. The presence of so-called "counter walls" between the several marshes of West Ham, as shown on the 18th century marsh- maps, indicates that these marshes were "inned" at various dates : indeed, the "new marsh" and the "new inned field" referred to in the Stratford Abbey Rental of 1538 must have been then of comparatively recent "inning." It is probable that the Cistercian monks of Stratford Langthorne Abbey6—an Order noted for its agricultural activities—would readily under- take the erection of successive river-walls in their district, as opportunity offered, so as to increase the acreage of meadow land during their four centuries of ownership. In this connection a Grant of Henry VIII, in which a certain marsh in East Ham is mentioned which the late Abbot of Stratford had recovered from the "overflowing of the water," clearly indicates a marsh which had not long before been "inned." Successive erection of the river-walls at various dates would explain the distinctive names given to sections of the walls : for instance, within the area of the modern Borough of West Ham occur names such as "Warewalla" (mentioned in 1199— 1200), Priors Wall (mentioned in 1330), Coverlee's Wall (men- tioned in 1337), Bulleswall (mentioned in 1398), Pulle Wall [possibly a corruption of the last-named] (mentioned in 1538), Wilan Wall, Stampitts Wall and Sowlande Wall (all mentioned in 1538), Green Wall (1742), Three Mills Wall (1741), and, in more modern times, Long Wall and Short Wall. 6 Founded in 1135.