WESTLETON BEDS TO THOSE OP NORFOLK, ETC. 115 



hope to show in the second part of this paper, they are separated 

 from the deposits of the Glacial Period by further and equally im- 

 portant physiographical changes. In one case we have currents 

 and drifts from the south and east ; in the other, northern drifts 

 solely. The importance of these features will be seen when we 

 come to questions connected with the relative age of the drifts in 

 the London Basin, especially as I take this Westleton Shingle as the 

 base of the Quaternary Series, and as marking the time when the 

 existing forms of life, both animal and vegetable, began to predomi- 

 nate in this country. 



Lists of the Organic Remains of the Westleton and Mundesley 

 Beds of NorfolJc, compiled in greater part from the lists of 

 Mr. Clement Reid's Memoir on Cromer, but grouped in accord- 

 ance with the stratigraphical order proposed in the foregoing 

 pages. 



Plants. 



Cryptogams. 

 Chara, sp. 



Hypnum turgescens, Je?i5 Moss. (Northern regions.) 



Equisetum, sp. 



Osmunda regahs, Limi Fern-royal. 



Gymnospenns. 



Pinus sylvestris, Limi. Scotch Fir. 



abies, Li7in Spruce Fir, 



Taxus baccata, Linn Yew. 



Monocotyledons. 



Carex & Cyperus, sp. (several) Sedges. 



Juncus, sp Rush. 



Potamogeton flabellatus, Lab "j 



heteropbyllus, Schreb I Pond-weeds. 



trichoides, Cham J 



ZannicbeUia palustris, Linn Horned Pond- weed. 



Dicotyledons. 



Alnus glutlnosa, Linn Alder. 



Betula nana, Zww Dwarf Birch. 



Ceratophyllum deinersum, Linn Horn wort. 



Corylus avellana, Limi Hazel. 



Hippuris vulgaris, Linn Mare's-tail. 



Menyanthes trifoliata, Linn Bog-beau. 



Myriophyllum, sp Water Milfoil. 



Prunus communis, Huds Sloe. 



Ranunculus aquatilis, Linn Water Crowfoot. . 



, sp Buttercup? 



Rumex maritimus, Linn Golden Dock. 



SslWx Tpolaria, Wahlb PolarWillow. 



Thalictrum flexuosum ?, Bernh Meadow Rue. 



Trapa natan.s, Zewi Water Chesnut. (Centnil Furojic.) 



Trifolium? Clover? 



Insecta. 



Donacia sericea, Linn. \ Timarcha ?, sp. 



Notiopliilus aquaticus, Linn. 



