HOLOCENE. 17 "moorlog" or peat dredged from the edges of the Dogger Bank, with a report on the plant remains by C. and E. M. Reid. 124 Orwell (J. E. Taylor, E.N., iv., 1890, pp. 90-172). The bed of this estuary is occupied by peat 9 feet thick, resting upon marl with freshwater shells. 125 Foulness, recent marine deposits (W. H. Dalton, E.N., iii., 1889, pp. 239-243; E.N., xv., 1908, pp. 118-125). The second paper gives well sections, one of which seems to show as much as 75 feet of alluvial deposit. Also E.N., xv., 1909, pp. 274-276. 126 Silting of Navigation Channels off the Essex Coast (E.N., xi., 1900, p. 271). 127 Subsidence of Eastern England (W. H. Dalton, E.N., xvi., 1909, pp. 96-100, with remarks by H.Laver and S. H. Warren). The evidence for a comparatively modern subsidence rests mainly upon the foundations of buildings being observed upon the tidal flats. This does not seem to me satis- factory evidence, because foundations are originally below the living surface, and when the area becomes invaded by the sea, they are often carried still lower by sliding [122 ; there are also further remarks on this subject under 328] 128 Encroachment of the Sea (P. Clark, E.N., x., 1898, pp. 355-359). Pewit Island (only reclaimed 30 years before) was swamped, and the farm house rendered uninhabitable, by the great tide of 29 November 1897. [The house still stands, and is surrounded by the tides. If the situation had been more exposed to the open coast, its foundations, well, cess-pool, etc., might have already furnished apparent evidence of subsidence.] Further reports of the devastation of this tide are to be found in the same, and the succeeding, volume. 129 b. Inland Sites. Barking (A. S. Kennard, E.N., xi., 1900, p. 290). Mollusca from Alluvium of Roding. 130 Forest Gate (W. Crouch, E.N., iv., 1890, p. 17). Polished axe of similar type to 134 in Alluvium at Earlham Grove. 131 Canning Town (A. S. Kennard and B. B. Woodward, E.N., xiii., 1903, pp. 77-79). A section of the usual character with list of mollusca [20]. 132 Hackney Wick (A. Wrigley, E.N., xviii., 1915, pp. 31 ; 74). Socketed bronze spear-head, found near the top of the gravel, under the Marsh clay. 133