108 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. .Dec. 2,
Section of the White Lias in Colin Glen (above the section on p. 105).
Lower Lias resting on ft. in.
5. Arenaceous Marls with Cardium Mhceticum . . 10
6. White Limestone 4
7. Grey Marls 6
8. Red Marls 9
9. Grey Arenaceous Shales, passing down into
No. 10, with Axinus cloacinus, Cardium Hho3-
ticum, Sfc 10
26 4
The section at Cave Hill is complicated by the intrusion of a large
trap-dyke (see fig. 2). I have made out the following succession

—
Section of the White Lias at Cave Hill (above the section on p. 105).
ft. in.
1. Indurated Shales, fossiliferous 8 6
2. Indurated Shales, unfossiliferous . .* 1 10
3. Indurated Marls, exhibiting an oolitic struc-
ture, which disappears 6 feet from dyke

no
fossils 3 10
4. Unseen, about (4 0)
5. Black Shales of Section, p. 105
14 2
Pig. 2. — Section at Cave Hill.
5
aiA Tramway
Blue Marls.
.For the Explanation of the figures see above..
At some distance from the above section the following beds, in
descending order, appear as resting upon the same dyke

—
1. Gault.
ft. in.
2. Marly Shales with the fossils of No. 1 in the pre-
vious section 8 10
3. Micaceous Sandstone