The peculiar features presented by the upper or land-surface portions of some deposits, or rather those portions of certain deposits which are now, or have been in times past, land-surfaces, have engaged the attention of many geologists. Most of those who have studied them are satisfied that some features which they often show are not now being produced in this country, and they are attributed by many observers to the action of different climatic conditions to those which at present exist.
1 A Sketch of the History of the Rivers and Denudation of West Kent, etc.Google Scholar
2 Q.J.G.S., vol. lxix, pp. 581–618, 1913.Google Scholar
3 Ibid., vol. xlvi, pp. 437–79, 1886.
4 Ibid., vol. xxii, pp. 553–65, 1866.