178 NATURAL SCIENCE. Sept., 1895, 



remains and land and freshwater shells, including the southern 

 Helix frnticiim and Hydvohia mayginata, both now extinct in Britain. 

 At Hoxne, on the other hand, overlying the Boulder Clay we find an 

 interesting flora, including the dwarf arctic willows, Salix polar is and 

 Salix myrsinites and the dwarf birch Betula nana. Numerous palaeo- 

 lithic implements have been obtained from the same pil, where they 

 were discovered nearly a hundred years since by John Frere. It is 

 to be hoped that the Ipswich meeting will produce some communi- 

 cation on the relations of the various isolated deposits later than the 

 Boulder Clay, for this is a subject that ought more easily to be worked 

 out in Suffolk than in any other county. 



REFERENCES. 



1. Cbamberlin, T. C. — " Recent Glacial Studies in Greenland." Bull. Geol. Soc. 



Amci-ica, vol. vi , pp. 199-220, pis. 3-10. 



2. Prestwich, J. — " On the Structure of the Crag-beds of Suffolk and 



Norfolk. . . ." Quart. Journ. Geol. Soc, vol. xxvii., pp. 115, 325, 452. 

 [Also French translation by Mourlon, 1874.] 



3. Reid, Clement. — " Geology of the Country around Cromer." Mem. Geol. 



Survey, 18S2. 



4. ■ — . — " The Pliocene Deposits of Britain." Ibid, 1890. 



5. Whitaker, W. — "The Geology of the Country around Ipswich, Hadleigh, 



and Felixstowe." Ibid, 1885. 



6. Wood, S. v., junr., and F. W. Harmer. — "Introductory Outline to the 



Geology" [in "Supplement to the Crag Mollusca"] PaUontographical 

 Soc, 1872. 



Clement Reid. 



