﻿258 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [May 14, 



the escarpment of the hills, which skirt, as it were, the sandstone- 

 plain of the West Cliff. 



Fig. 1 . — Plan of a part of the Town of Folkestone. 



' i 1 I 1 1 1 1 1 1 1 1 1 



100 50 100 200 yards. 



a. Section of the Bone-bed, &c., exposed at Mr. Craxford's house, on the Bayle (see fig. 3). 



b. The lowest point at which the Brick-earth occurs. 



c. Section of the Brick-earth and angular-fiint-gravel, exposed at London Street (see fig. 4). 



d. Section of the Brick-earth at Porter's Saw Mill. 



e. Section of the Bone-bed at the Town Sewer on the Bayle. 



The shaded portion of the Bayle indicates the extent of the Bone-bed. 



At the south-eastern corner of this plain (at an elevation of 110 

 feet above low-water-mark) on the top of the West Cliff, under 

 the Battery, and lying immediately on the upper beds of the Lower 

 Greensand, which are of loose disintegrated sand, is a deposit, 

 from 1 to 9 feet thick, consisting of flint pebbles and boulders ; 



