HAWKESWORTH: A BORING AT EAST HARLSEY. 
73 
5. — Soft dark limestone (?) 
Ft. 
15 
In. 
0 
6. — No core, but water returned up bore-hole 
was reddish-brown, whilst material in 
sediment tube was dark-brown 
12 
0 
7. — Various coloured marls, gypsum, and 
anhydrite (one piece of core 15 inches 
long, gypsum) 
91 
0 
8. — Red and green marls (at 258 feet drill 
entered " rotten marl " ; after passing 
through a few inches of hardish light - 
green rock at 270 feet the drill entered 
hard sandy marl) 
22 
0 
9. — Marls 
80 
0 
As to the geological position of these beds, No. 3 apparently 
represents the Ammonites Bucklandi zone of the Lias, of which 
the abundant and large-sized Gry^phcea is characteristic . Further, 
Tate and Blake ('' Yorkshire Lias," page 67) record shales 
belonging to this zone as exposed in the roadside near East 
Harlsey Church. 
It was quite impossible to make out any succession in the 
beds constituting 4 and 5, owing to the mixing up of the cores, 
though the presence of large numbers of Pleuromya and Cardinia, 
both in the shales and harder layers, suggest the lowest beds of 
the Lias. 
No. 6 may be said to represent the Rh3etic beds. The core 
of 12 feet was lost, and, in going through it again, appears to 
have been ground up. However, the position, and the occurrence 
of Avicula contorta on such fragments as remained, leave little 
doubt that this view is correct. Immediately after this, at 157 
feet down, the change was reported as being very abrupt. 
The beds passed through from 157 feet to 350 feet appear to 
belong to the Keuper. 
I have to express my very great indebtedness to Mr. F. G. 
Clements, engineer to the New England Boring Co. Ltd., of 
Walton, near Peterborough, for affording me the opportunity 
of recording this section. 
