1. Ordnance Survey Map, New Series, sheet 202.
2. Geological Survey Map, sheets 5 and 6.
3. Geology of the Weald;Topley;Mem. Geol. Survey,1875
4. J. L. LobLEY..—“Report of the Excursion to Tilgate Forest,” &c. ‘Proc. Geol. Assoc.,’ Vol. vii, pp. 372–375. (This Report, with the Section here reproduced, describes a line of country a little west of that now described ; but it sufficiently represents the structure of the district.)