153 
| position. We are accustomed to small landslips on our 
_ neighbouring hills, the clays of the Fuller’s Earth lending them- 
_ selves yery readily to the movement of the top beds over their 
greasy surface after continued rains, but in this case, the magni- 
tude of the slip, the great disturbance of the beds, and the way 
in which they have come down into the Sands, almost on to the 
top of the Lias beds, is noteworthy. 
SECTION OF GREAT OOLITE JUST ABOVE PRESENT WORKS. 
Section runs from N.N.W. to 8.S.E. 
Beds are thrown down with a dip of 64° to S.S.E., with a patch 
of Fuller’s Earth clay in N.N.W. corner. 
Order of succession from N.N.W. to 8.S.E. 
Fr. IN. 
1.—Yellow clay on top, blue below oo 
2.—Vense blue crystalline limestone _.. 0 33 
*3,—Thick bed, brown and oolitic at base, 
coarse shelly limestone on top .. Ly3 
4.—Broken up shelly limestone Pe 
5.—-Solid shelly limestones 1 
6.—Ditto ie . — 9 
7.—Shelly limestone .. are . — 8 
6 13 
Below this section we soon come to the Sands resting on the 
blue clays of the Lower Lias. That these clays are Lower. Lias 
is corroborated by the fact of finding Cardinia Listeri and 
‘Am. (goceras) Capricornus, which, though a type species of the 
“Middle Lias, occurs, Mr. Edward Wilson says, in the Lower 
Lias. But the bottom of the valley has been dammed up in 
former times, possibly by the same cause which brought this 
mass of Great Oolite down from the plateau above; and 
vidences are abundant that a large body of water, comparatively 
stagnant, filled it on the site of the present excavations, from 
Fry’s Farm nearly up to the existing small reservoir beneath 
Monkswood. In process of time (and this must have been of 
: Rhynconella obsoleta found i in No. 3. 
