58 Origin of the British Flora. 
of Oak-roots in place, indicating a soil above the reach of 
the sea. It lies 35 feet below mean tide level, and points 
to a subsidence of fully 55 feet. The plants are:— 
Crategus Oxyacantha. Quercus Robur. 
Cornus sanguinea. Salix Caprea. 
Corylus Avellana, Sparganium. 
The whole of the deposits belong in all probability to 
the Neolithic Period. 
BEESTON, NORFOLK. 
(Reid, ‘Piocene Deposits of Britain, Mem. Geol. Survey, 
1890; Reid, ‘Geology of the Country around Cromer, 
Mem. Geol. Survey. 1882.) 
Two distinct plant-bearing deposits are represented at 
Beeston. The lower is a peaty loam full of seeds of 
Temperate plants, and belongs to the Preglacial Cromer 
Forest-bed. The upper, and newer, is an Early Glacial 
stratified loam with leaves of Arctic plants, at the base of 
the Boulder Clays. At one spot an intermediate deposit 
is perhaps represented ; this is here classed as the base 
of the Arctic bed. 
Plants from the Cromer Forest-bed :— 
Thalictrum flavum. Alnus glutinosa, 
Ranunculus aquatilis. Ceratophyllum demersum. 
repens. Stratiotes aloides. 
Nuphar luteum. Alisma Plantago. 
Stellaria aquatica. Potamogeton pectinatus. 
Poterium officinale. — trichoides. 
Hippuris vulgaris. ————_ heterophyllus. 
CGEnanthe Phellandrium. Najas marina. 
Carduus. Scirpus pauciflorus (?). 
Stachys palustris. caespitosus. 
Atriplex patula. ——— fluitans (?). 
Rumex Acetosella. Carex (several sp.). 
maritimus. Isoetes lacustris. 
Betula alba. 
