LIAS OF ENGLAND AND WALES : 
FT. IN. 
10 
10 
f Rubble and clay 
TOP LIAS. Limestone 
Shale - - - - 1 
SECOND LIAS. Limestone - - 9 
Shale - ... 9 
(" Limestone - 5 
Two FIVE-INCHES < Shale - - 4 
I Limestone - 5 
Shale - -10 
SIX-INCH. Limestone used for building; 
it cuts out well, but will not stand the 
weather - ... 6 
Shale - ... 1 
HOUSE PAVIOUR. Limestone - "\ i i 
DUNCH PAVIOUR. Limestone - - / 
Shale - - - 7 
SANDSTONE. Hard limestone - 3 
Lower Lias -<{ SECOND LIAS. Limestone - - - 5 
" Shales - - - -.-03 
CLOGS. Two beds of limestone - -.09 
Shales with Modiola minima - - 1 3 
LITTLE PAVIOURS. Three bands of lime- 
stone and shales (ground up for making 
cement) - 9 
BOTTOM LIAS. Shelly limestone with 
Pleuromya crowcombeia - - - 1 1 
BURNING SCALE. Fissile limestone-shale 1 6 
CEMENT. Dark fissile shaly marl - 2 
BLACK SCALE. Blue shaly or earthy lime- 
stone (put with CEMENT shales, for 
making cement, otherwise the material 
will not set) - - 1 8 
Grey and yellow earthy limestone, appearing 
to merge into the bed below. Ostrea 
liassica, &c. - - 4 
/DEW ROCKS. Compact limestones. (Top of 
'\ White Lias.) - -' 1 / 
A section at Puriton, showing about 30 feet of the Lower Lias 
with Ammonites planorbis, &c., was recorded by Messrs. Bristow 
:ind Etheridge.* The higher beds consist of clays with bands of 
limestone, so that we have evidence, confirmed by the new railway- 
cuttings between Bridgwater and Edington, that the zones of 
Ammonites angulatus and A. Bucldandi are not represented by 
any great mass of limestones in this neighbourhood. This was 
to be inferred from the clayey character of the northern slopes 
of the Polden Hills, and of the island of Lias that appears in 
the moors at Meare, where we find clay with only occasional bands 
of limestone. 
In a quarry at Bawdrip, adjoining the new railway to 
Kdington, the lower beds of the Lower Lias were exposed to a 
depth of 20 feet. The}' consist of thick layers of argillaceous lime- 
stone and slaty marl, on the horizon of the limestones worked at 
Dunball. 
In the railway-cuttings near by, and onwards to Cossington, we 
find a considerable development of the higher blue shales and 
""Vertical ctions (Geol. Survey \ Sheet 4ft No. 1. 
