LENHAM BEDS. 
47 
on the 600-foot contour. This is the pit described by Prof. 
Prestwich, whose sketch (Fig. 9) has been borrowed, for the section 
is now too much overgrown to allow of a proper examination.* 
Prof. Prestwich could only find a few traces of fossils at this 
locality, though he mentions the cast of a Cardium as having 
been found after his visit. I could only meet with a single 
indeterminable fragment. 
Fig. 9, 
Section on the Hill above Harrietsham, Kent. 
abode e dob a a b a abode f e d oba 
f, e. Fine light-red and yellow sands, in parts very argillaceous. 
d-b. Greenish sand, more or less argillaceous, with a subordinate bed or 
seam of ironstone concretions (cj. In places o reposes directly on a. 
a. Unrolled chalk-flints in brown and black clay. m. Chalk. 
In the above figure it will be seen that the subsidence of the 
beds into the pipes has not been sufficient to obliterate the original 
succession, and in a diagram section (Fig. 10) Prof. Prestwich 
Fig. 10. 
Diagram-section of the Iron-sands in their original horizontal 
position. 
/. Yellow sands, passing down into 
e. Light red sand and clay. 
} Greenish and yellow sands, with a subordinate 
seam of ironstone, c, and some flint-pebbles. 
a. Chalk-flints in Clay, 
m. Chalk. 
replaces the layers in a horizontal position, so as to show the 
original order of the deposits. To this reconstruction no objection 
can be made, except that probably the bed of Chalk-flints in 
Clay ” (a) ought not to be placed underneath the undisturbed 
Pliocene Beds. It is evident that the solution of the mass of 
Chalk which formerly occupied the two pipes shown in Fig. 9 
would leave a considerable mass of insoluble flints, together with 
* Figs 9 and 10 are borrowed, by permission of the Council of the Geological 
Society, from Quart. Journ, Geol. Soc., vol. xiv., pp. 326, 327. (1858.) 
