186 
THE MIDDLE LIAS OF NORTHAMPTONSHIRE. 
the grassy slopes of a railway bank, for instance. The 
thickness of this bed is about 2ft. at Staverton, and nearly 
3ft. at Watford. 
Bed “ I.” 
The number of sections in which this bed can be seen is 
very limited, but it appears to be almost exactly like the bed 
“ K.” I have only been able to actually measure it at one 
place, Staverton, and there it has a thickness of 4ft. 
List of Fossils from Beds “ K,” “ J,” “ I.” 
Ammonites margaritatus... Clialcomb, Milton, Newnliam. 
Belemnites . Milton. 
Ostrea submargaritacea — Clialcomb. 
Ostrea sportella . Milton. 
Ostrea cymbium . Milton. 
Pecten cequivalvis . Clialcomb, Milton. 
Pecten liasinus (small) ... Clialcomb, Staverton, Watford, 
Newnliam. 
Limea acuticosta . Clialcomb, Staverton, Watford, 
Newnliam. 
Plicatula spinosa .Milton (abundant). 
Avicula inaiquivalvis . Clialcomb, Milton (abundant). 
Modiola subcancellata (?).. Clialcomb. 
Modiola numismalis (?)_ Clialcomb. 
Protocard turn truncatum .. Clialcomb, Milton, Staverton, Wat¬ 
ford. 
Cardinia antiqua . Milton (abundant). 
Astarte striato-sulcata . Clialcomb. 
Pholadomya ambiyun . Clialcomb, Newnliam. 
Area liasina . Clialcomb, Watford. 
Arcomga hispid a . Clialcomb. 
Unicardium globosum . Clialcomb. 
Pleuromya eostata .Milton, Clialcomb. 
Pleuromya granata (?). Milton. 
Fncrinite stems . Milton, Staverton. 
Fucoid markings . Staverton, Watford. 
Bed “ II.” 
The general character of this bed is that of a soft red 
sandstone abounding in fossils. It appears to be micaceous 
and calcareous in some places and not in others; also it 
varies considerably in the amount of iron it contains, and 
in the relative abundance of certain fossils. The bed may 
be best examined at Byfield, Staverton, and near Daventrv. 
At Byfield it is 3ft. Bin. in thickness, and is a homogeneous 
red sandstone containing two or three species of Pholadomya 
