312 
‘‘Cotham Marble” formed the bottom of the trench followed in one 
spot still further on by the top bed* of the White Lias, William 
Smith’s “Sun bed” dipping 14° S.E. The remaining portion of 
the trench is excavated in White Lias. An illustration, No. 1, 
taken at the N.W. end of the trench, shows but imperfectly the 
squeezing and disturbance to which the beds have been subjected. 
N. anp 8S. SECTION. 
A road cut level with the rails for purposes of communication 
with the siding has opened up a section running N. and 8. which 
is of some interest especially in relation to the more superficial 
geology. Plate No. 2 gives a very fair idea of this. It is 
taken from the N. end where the cutting is from 10 to 11 ft, in 
depth of which the following is a section. 
SECTION RuNNING N. AND S. 
No. Ft. In. 
1. Turfand mould ... ; oi OOO 
2, Disturbed mass of White as and ine clay 3, ae 
3. Yellow clay on = od. OMEG 
4, Sandy clay, more sand esha clay, with pebbles 
throughout, White Lias pebbles prevailing 
near the top, .Mountain limestone nearer 
base, &c., &e. ... ; 3 6 
5. Rubbly eds of White Lias « base ‘with seats 
calated grey clay bands, basement beds of 
White Lias_... tt) 
The gravels resting on the W. Lias waa a black band of 
sand and pebbles at the base, and thin out Southwards to a 
thread. 
* Recognised by the presence of the thin brown arenaceous 
band invariably separating the White Lias from the Lower Lias 
in this district. (vide “No. 20” in “Newbridge Hill Section” of 
my former paper. 
