
| 426 APPENDICES 
UPPER or PORT- 
Pann OOLires: Portland Beds. 
Purbeck Beds. 
Kimeridge Clay. 
. MIDDLE or Ox-f Coral Rag. 
. PB FORD OOLITEs . | Oxford Clay. 
Cornbrash and Forest Marble. 
| a peeete ‘Lege ae Boee Great or Bath Oolite, with Stones- 
Wa Zi Gini: field Slate. 
ut 2 : Fuller’s Earth. 
th fy Inferior Oolite. 
i n Upper Lias. 
i a LIAS .) Marlstone. 
. = Lower Lias. 
| | = RHIC... . Penarth Beds. 
Ni = UPPER or Kxu-{ New Red ee 
| fe) ; PER ; . ‘Lower Keuper Sandstone. 
| 2 pees MIDDLE . (Wanting ar Britain.) 
| Ss Upper Mottled.Sandstone. 
Lower Mottled Sandstone. 
Red Sandstones, Clays, ete. 
(ee : : | Diaeaean Limestone. | 
Permian. . Mar! Slate. 
Red Sandstones, Clays, Breccias, and 
; 
| 
i | LOWERor BUNTER | Pebble Beds. 
LOWER 
Conglomerates. 
| Red Sandstones, and Upper Coal- 
bearing Series. 
| CoAL-MEAsURES.4 Middle Coal-bearing Series. 

Pa Lower Coal-bearing Series (“‘Gan- 
4 ister Beds’). 
| < | Carboniferous) MILLSTONE GRIT Thick Sandstones, etc. 
= Yoredale Beds. 
(4 Main or Scaur Limestone. 
i Ay pane US J] Lower Limestone Shale (England), 
| A and Calciferous Sandstones (Scot- 
O ee . ae 
y oa 7 pper Devonian per and Lower 
| Or ease aes res ee m vei } ‘Old Red Sanne 
1 fe) | Lower ay stone. 
ah A ieee Group. 
i | 4 UPPER Wenlock Group. 
| x | Llandovery Group. 
. | Silurian . Bala and Caradoc Group. 
LOWER Llandeilo Group. 
q (Ordovician) Arenig Group. 
i Tremadoc Slates. 
i ee ' ties Flags. 
Hi ‘Cambrian  .) MIDDLE Menevian Group. 
ie | Lower Harlech and Llanberis Group. 

Archzean and Pre-Cambrian 
f Torridon Sandstones, etc. 
* \Lewisian or Hebridean Gneiss, 

