The Lenham Sandstones of Kent. 265 



The next paper of importance was by Mr. E. W. Harmer, 1 in which 

 the Lenham Beds were regarded as of older age than the Coralline 

 Crag, on account of the more southern facies of the fauna, some of 

 the molluscan species being characteristic of Miocene or Italian 

 Lower Pliocene, which are unknown or rare in the Coralline Crag. 

 The author included a distribution table of shells from the Belgian 

 Diestian beds, showing the Lenham occurrence as well as those 

 found in the "Box-stones" of Suffolk. In the following year the 

 same author 2 referred the Lenham Beds to the Older Pliocene under 

 the new horizonal term of "Lenhamian", and further recognized 

 them in a classification table as belonging to the "zone of Area 

 diluvii", and of the age of the Diestian sands. 



A more extended scheme of the Pliocene deposits of the East of 

 England was again published by Mr. Harmer, 3 based on his 

 classification table of 1899. In this the Older Pliocene beds were 

 divided into : — 



■ % I Lenham Beds : Zone of Area diluvii. Diestian. 



S I JBOX-STO.ZS { Zl ft aiStofo-g at S uUon>-^ B *< ? >- 



The Coralline Crag deposits were scheduled as the basement of the 

 Newer Pliocene series of rocks, which he had formerly placed in 

 the Older Pliocene. 



Mr. "W. P. D. Stebbing 4 next announced the discovery of some 

 molluscan remains in a patch of sand and ironstone at Netley Heath, 

 Surrey, between Dorking and Guildford, along the top of the North 

 Downs, at heights varying from 570 to 600 feet O.D. The specimens, 

 consisting of sandstone casts, were referred to the genera Cyprina(?), 

 Modiola, Nassa, Trochus, Cardium, Pectunculus, Tellina, and Thracia, 

 no specific determinations being given. The author inclined to 

 the view that these sandy deposits were a westerly extension of 

 the Lenham Beds near Maidstone, and those at Paddlesworth north 

 of Folkestone. 



Referring to the Lenham fossils, which Mr. E. Yan den Broeck 5 

 had examined at the Museum of Practical Geology, that author was 

 of opinion that they represented a fauna of Diestian age. He noted 

 the presence of older forms corresponding to the Bolderian (Upper 

 Miocene) fauna of Belgium, and among the Box-stones at the 

 Ipswich Museum he identified species found in the Belgium Miocene. 

 He concluded, therefore, that the Lenham Beds were Diestian, and 

 that the Box-stones corresponded with the Bolderian of Belgium, or 



1 "The Pliocene Deposits of the East of England; the Lenham Beds and 

 the Coralline Crag" : Quart. Journ. Geol. Soc, vol. liv, p. 308, 1898. 



2 " On a proposed new Classification of the Pliocene Deposits of the East of 

 England " : Bep. Brit. Assoc. (Dover), 1899, p. 752. 



3 " The Pliocene Deposits of the East of England, part ii : The Crag of Essex 

 (Waltonian) and its Belation to that of Suffolk and Norfolk" : Quart. Journ. 

 Geol. Soc, vol. lvi, p. 708, 1900. 



4 " Excursion to Netley Heath and Newlands Corner " : Proc. Geol. Assoc, 

 vol. xvi, pp. 524-6, 1900. 



5 " Le Diestien et les Sables de Lenham, le Miocene demantele et les Box- 

 Stones en Angleterre " : Bull. Soc Belg. Geol. (Bruxelles) Proces-verbaux, 

 vol. xvi, pp. 170-3, 1902. 



