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bands, to the lima beds, or zone of Ammonites Bucklandi 
to the white Lias more immediately resting upon the Red 
Marls (New Red Sandstone), within the course of a few 
miles from Fenny Compton to Harbury. The marlstone 
is largely quarried on the Avon Dasset hills, and forms a 
good building stone, being a hard marly stone, more or 
less indurated, of a green or yellow brown colour, some- 
times ferruginous. The marlstone forms a range of hills, 
of moderate height, on the eastern border of the county, 
of which Edge Hill is the highest and is a prominent 
feature, striking thence southwards towards Oxfordshire. 
The plain below, to the west, is occupied by the lower 
Lias. For the most part this formation spreads over 
the portions of the county on the north-east, east, 
south-east, south, and south-west of Warwick. East of 
that town the white Lias is the prevailing sub-division. 
The insect beds occur mostly to the south, south-west, 
and west. In this county the marlstone contains very 
few fossils, and those chiefly brachiopodous shells belong- 
ing to the genus terebratula, which has a very wide 
geological range, and still lives in the Australian seas. 
The stone, therefore, is more easily worked and is better 
adapted for economical purposes. In most cases elsewhere 
the marlstone is very fossiliferous, and abounds in marine 
shells, which are usually well preserved. The sandy 
beds immediately below are rarely exposed, but crop 
out in a lane near Bitham House, where as usual 
they contain many fossils. The inferior clays and marls 
are not visible except in some brick pits near Fenny 
Compton, and along the line of railway. They are very 
full of fossils, and at one horizon abound in a species of 
small coral (montlivaltia), gryphites, leda, hippopodium, 
belemnites, pectens, ammonites, many small anivalves, and 
numerous other marine shells. The middle Lias and sub- 
