164 PKOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



It is very evident that we are here dealing with a more complex 

 series of deposits, the lower portions of which are older than those 

 of the first section. The surface soil contaias few shells. Helicella 

 virgata, Da C, was the only one which I noticed. 



The next stratum (2) is really a double one in point of date. The 

 upper part contains Helix aspersa (though far less abundantly than th5 

 other section) and Helicella Cantiana, and is probably of the same age 

 as the deposit No. 2 of Fig. I. Towards the middle and at the lower 

 part, however, Neolithic flints and Neolithic pottery occurred. One 

 specimen of H aspersa was found at the lowest horizon of the 

 Neolithic pottery. 



The lowest stratum (3) is pre-Neolithic, and is of the character 

 of brickearth in some places, and of chalky loam in others. In this 

 bed, towards the lower part and just above the chalk rubble, the 

 following shells were found : — 



Agriolimax agrestis, Linn. 5 feet from surface. 



Helicigona arhustorum, Linn. 5 ft. 6 in. and 6 ft. from surface. 



Pupa muscorum, Linn. 5 ft. 6 in. from surface. 



These and Vallonia pulchella, Miill., occurred sparingly through the 

 upper part of this stratum. 



This lowest deposit corresponds to other Pleistocene deposits in 

 lithological and faunal characters, and is to my mind a loam such 

 as at Chesilton, Portland Bill, Sangatte, and elsewhere occurs in seams 

 in the angular and subangular Hubble Drift, which at this section 

 overlies it.^ 



Reverting to Pig. II : — 



Helicella Cantiana occurred at the upper part of (2). 



Agriolimax agrestis throughout (2), but one specimen was found at 



a depth of 5 feet, well down in the Pleistocene loam. 

 Pupa muscorum was met with under and at the lower part of (2), at 



the upper part of (3), and a few specimens on the horizon of 



Helicigona arlustorum. 

 Helicigona arhustorum in (3) only, 5 ft. 6 in. and 6 feet from surface. 

 Helix aspersa occurred generally, but sparingly, throughout (2), one 



specimen on the horizon of the Neolithic pottery at the base 



of (2). 



The complete list of the shells found in the two sections is as 

 follows : — 



Surface Soil. Holocene. 



Helicella virgata, Da C. Agriolimax agrestis, Linn. 



PosT-HoMAN. Vitrea cellaria, Mlill. 



Helicella Cantiana, Mont. ,, nitidula, Drap. 



Helix aspersa, Miill. ,, pura, Aid. (1 specimen). 



1 Prestwich : Quart. Journ. Ueol. Soc, vol. xhiii (1892), pp. 271, 277, 278 ; vol. xxi 

 (1865), p. 440. 



