vill 
MESOZOIC, 
or 
SECONDARY. 
DESCRIPTIVE REMARKS. 
Upper Calcareous Grit. 
| Coral Rag. 
Middle . ¢ Lower Calcareous Grit. 
| oer Clay. 
Kelloway Rock. 
( Cornbrash. 
Forest Marble. 
Bradford Clay. 
| Great or Bath Oolite. 
Stonesfield Slate. 
| 1 Pullers’ Earth. 
Inferior Oolite. 
| | Upper Lias Sands. 
Upper Lias Clay- 
| | Middle Lias— Marlstone, 
pen 
LOWER MESOZOIC. 
| Lower Lias Clay and Lime- 
L stone. 
Penarth Beds (Rhztic). 
( Keuper. 
Ce aa a eet taser Dolomitic Conglomerate. 
Bunter. 
PERMIAN Lower Red Sandstone and 
Magnesian Limestone. 
Marls. 
( Upper Coal Measures. 
' Middle Coal Measures. 
} Lower Coal Measures. 
| CARBONIFEROUS- - - - : : 
| Millstone Grit. 
, Carboniferous Limestone. 
| Lower Limestone Shales. 
Otp Rep SANDSTONE AND ( Upper 
DEVONIAN. _ , . .& Middle Devonian. 
Lower 
UPPER PALAOZOIC. 
Tilestones. 
Upper Ludlow Rocks. 
Aymestry Limestone. 
_, | Lower Ludlow Rocks. 
Wenlock Limestone. 
Wenlock Shale, Sandstone 
and Flags. 
| Woolhope Limestone and 
Shale. 
| Denbighshire Sandstone, Shale 
and Slate. 
Tarannon Shale. 
| Upper Llandovery Beds, or 
May Hill Sandstone. 
| Lower Llandovery Beds, Con- 
glomerates, Sandstones, and 
| Shales. 
Caradoc or Bala Sandstone, 
| | with Bala Limestone. 
| Lower 2 Llandeilo Flags and Lime- 
SILURIAN . 
stone. 
Graptolite Shales and Slates. 
Tremadoc Slates. 
LLingula Beds. 
LOWER PALAOZOIC. 
we : 
