VOL. XX. (3) THE SILURIAN ROCKS OF MAY HILL 
209 
The Clifford’s Mesne Section. 
Close to the church there is a large upper quarry in Down- 
tonian beds, and in its floor a lower quarry has been excavated 
in Ludlow beds. The dip of the rocks is 15 0 south-east. 
In the upper quarry about 40 feet of yellow-white fine 
quartzose sandstone is seen divided into separate beds by four 
layers of grey shale, each of which is about 6 inches thick. 
The sandstones have yielded Eurypterus sp. and plant 
remains. The latter, which are in very small fragments, are 
very abundant in some layers, and amongst them Pachytheca 
is common. In the shales Platyschisma helicites occurs. 
Some 600 yards to the south of Clifford’s Mesne Church are 
some disused brick pits where about 2 feet of maroon-coloured 
marls are seen resting on a yellow-white hard sandstone. The 
beds dip 22 0 south-south-east. These are taken by Mr. 
Richardson to be Old Red Marls resting on Downton Sand- 
stone. 1 If this is so, the apparent thickness of the Downtonian 
beds in this region is some 200 feet. The yellow-white sandstone 
is certainly unlike any of the beds of the Old Red Sandstone in 
the neighbourhood. 
The Blaisdon Section. 
This is the section described by Strickland in 1853. He 
saw Old Red Sandstone resting on 20 feet of yellow Downton 
Sandstone and the latter on Ludlow Shales, the whole series 
being a conformable one. 
Unfortunately, the Downton beds in the railway bank and 
by the road just above are not now exposed completely. There 
is a bed of yellow sandstone exposed about 10 feet above the 
bone bed by the roadside, and this is very full of black vegetable 
remains, which are in very small fragments and show no 
structure. 
About a foot higher up comes typical Old Red Sandstone. 
The yellow bed with plant remains is also seen in the railway 
cutting. 
These Downton beds differ very markedly in lithological 
1 L. Richardson, F.G.S., “ Geology of Herefordshire,” Transactions of the Woolhope Naturalists' 
Field Club (1905), p. 37. 
