52 Proceedings of the Royal Iriik Academy. 



A long period, represented by the eskers, briek-clays, and sub- 

 merged peat, must have intervened before tbe deposition of the next 

 bed of the series. 



The peat bed, so far as vre know its flora and fauna, points to a 

 climate not much differing from that which exists at present, and to 

 an elevation of the land slightly greater than at present. A slight 

 submergence allowed the deposition of the lower estuarine clay, with 

 its rather southern fauna, and a further submergence was followed by 

 the accumulation of deposits of mud in the shape of the upper estua- 

 rine clay, of sand-banks, such as the Curran of Lame, and of shelly 

 beach deposits, such as that of Portrush. At this period the southern 

 element of the fauna attained its maximum. Finally came elevation 

 of the land, and with the last change of level came the final fluctua- 

 tion in the character of the animal life, a distinct return towards its 

 former northern character, which has left the fauna as we now find it. 



Classtfted List of the Pees-cipax Papees, etc., rszD rs- the 

 Peepajeatiox of PoEEGors-G Eepoei. 



Glaciax Fauxa. 



1843. Betce (James), and Geoege C. Ht>t)ka>-. — "Xotice of an 

 Elevated Deposit of Marine Shells, of the Xewer Pleiocene 

 Epoch, lately discovered near Belfast." In Portlock's 

 Eeport on the Geology of Londonderry, (§:c., p. 738, 

 Appendix. 



1850. M'Adaii (James). — "Observations on the Xeighbourhood of 

 Belfast, with a description of the Cuttings on the Co. Down 

 Railway," Joum. Geol. Soc. Dublin, iv., part ii., Xo. 2. 



1860. Hts-dslls- (Geoege C). — "Report of the Belfast Dredging 

 Committee for 1859," Brit. Assoc. Eeport for 1859. 



1875. Gealn-gee (PiEv. JoKy). — "On the Post-Tertiary Deposits of 

 Ireland," Brit. Assoc. Eeport for 1874, Trans, of Sections. 



1881. SiEWAEi (S. A.).— " "Mollusca of the Boulder-Clay of the 

 North-east of Ireland," Eep. and Proc. Belfast Xat. Field 

 Club (2), I. (1879-80), Appendix. 



1881. Weight (Joseph). — " Post-Tertiary Foraminif era of the Xorth- 

 east of Ireland," Eep. and Proc. Belfast Xat. Field Club (2), 

 I. (1879-80), Appendix. 



1893. Peaegee (E. Llotd). — "Eeport of the Sub-Committee ap- 

 pointed to investigate the Gravels of Ballyrudder, Co. 

 Antrim," Eep. and Proc. Belfast Xat. Field Club (2), ra. 

 (1892-93). 



