422 Oit (I Secfioti in Ihe Posl-irlncial Deposit iit Ifornseu. 



in the old Mere, but the absence ut" all but these few species, 

 and perhaps one or two others, at every locality where the 

 lacustrine beds are seen in Holderness tends strongly to show 

 that they were not able to live in the district, or, more probably, 

 had yet not had time to mig-rate into it." 



Subsequently to the publication of the Holderness Memoir 

 the section in the Hornsea Peat Bed was covered up by a 

 sea wall, which unfortunately (and fortunately) was washed 

 away during- the exceptionally high tide last spring. The 

 result was that a much liner exposure of the series was visible 

 than I had previously seen. For a distance of about four 

 hundred vards a section varying in height from ten to fifteen 

 feet was visible, and showed, commencing at the top, (i) a 

 thick deposit of superficial gravels bedded at a high ang-le, 

 (2) marl, (3) peat, (4) glacial gravel and sand, (5) a bed of red, 

 regular, tough boulder clay (not Hessle clay), (6) laminated 

 clays, (7) purple boulder clay. 



The most remarkable feature perhaps in the section is the 

 large deposit of gravel above the peat, which it is somewhat 

 difficult to account for, as there are no surface features visible 

 which would lend a clue to this accumulation. Whilst the 

 .section was a\'ailable some time was spent in examining it, and 

 in collecting shells, etc. therefrom, in which work I had the 

 assistance of Mr. H. C. Drake and Mr. T. Stainforth. From 

 the specimens thus obtained, as well as some bones of a bird 

 obtained by Mr. F. F. Walton, we were able to draw up the 

 following list of species from the present exposure : 



Plant Remains — 



Raintnciilus? 

 Potent ilia, sp. 

 Ilifypu ris vn I if a r/s. 

 /'tit(i>ii(/i^rcto>i, sp. I. 

 sp. 2 



Shells ^ 



Sci(iiii'ntina 11 itidix. 

 /'lanorhis albiis. 



,, itautih'KS. 



,, pan<iis. 



,, sfiirorbis. 



,, I'or/i'x. 



,, uiiibiliciitiis. 



,, iontorliis. 



, , iiidbcr. 



LiiiiiKCd prrt'irni. 



(iiii ictilitrin. 



l'i)litinui>ctiiu^ cf. nataiis. 

 \'iola piiliisln's ? 

 Satix, sp. 

 Carex, sp. 

 Chara. 



l.liniKpa Inincatiilit. 



By til in in tfittiiridatd. 



I'd/viitti pisrinalis iiUiX v. imtiqua. 



rri statu 

 Anndiinltt cyifUiPti. 



,, anatinii. 



Sf>li If rill III ( •<! rn cum. 

 I'isidiiiiii font i naif. 



,, f>iisilliiin. 



,, II it id II in. 



,, mil ill in. 



Naiuralisl, 



