62 Origin of the British Flora. 



E. Loam at the base of the marl : — 



Betula alba. Carex. 



Potamogeton. 



B is Recent or Neolithic. C and E correspond with 

 the marl at Ballaugh (which see), and are classed pro- 

 visionally as Late Glacial. 



CORSTORPHINE, NEAR EDINBURGH. 



(Bennie, ' Arctic Plants in the old Lake Deposits of 

 Scotland,' Ann. Scot. Nat. Hist., 1894, pp. 46-52.) 



In the lower part of the lacustrine deposits filling a 

 silted-up lake are numerous seeds and leaves of Arctic 

 plants. The deposit is probably Late Glacial, and con- 

 temporaneous with those of Hailes and Dronachy. 



Ranunculus aquatilis. Menyanthes trifoliata. 



repens. Oxyria digyna. 



Viola palustris. Betula nana. 



Stellaria media. Salix repens. 



Rubus. herbacea. 



Dryas octopetala. polaris. 



Potentilla. reticulata. 



Poterium officinale. Empetrum nigrum. 



Hippuris vulgaris. Potamogeton. 

 Myriophyllum spicatum. Eleocharis palustris. 



Taraxacum officinale. Scirpus pauciflorus. 



Andromeda Polifolia. lacustris. 



Loiseleuria procumbens. Carex, 2 sp. 



Corton, Suffolk. 



(Reid, ' Notes on the Sections at Corton, seen during 

 the recent visit of the members of the Geological Con- 

 gress,' Trans. Norfolk Nat. Soc, Vol. IV., pp. 606-609. 

 1889.) 



A bed of lignite and clay, belonging to the Preglacial 

 Cromer Forest-bed, here yields abundant seeds. 



