34 The Irish Naturalist. February, 



No. 4. Raised Beach, Oi.d Court, Skibbereen.— Weight of clay, 

 107 oz., Troy ; after washing, fiue, 23 oz. ; coarse, 4-4 oz. A few 

 foraminifera. 



FORAMINIFERA. 



Bullmlna marg:lnata, d'Orb.— One specimen. 



B. pupoldes, d'Orb.— Very rare. 



Clobigrerina bulloides, d'Orb. — One specimen. 



Truncatullna IobatuIa(W. & J.)— Rare. 



Polystomella striato-punctata (F. & M.).— One specimen. 



These Boulder Clays of Count}- Cork in the main, I believe, 

 represent the Marine Boulder Clays of Great Britain, of which 

 Mr. Wright and I have made many examinations and pub- 

 lished much.i 



In the short time at my disposal and being occupied as I 

 was with other geological problems and in sketching, very 

 much could not be done. In all probability a more thorough 

 search among the islands, loughs, and coast lines would reward 

 the patient investigator who has previously worked in other 

 districts and knows how to look for Marine Boulder Clays. 



It may be here observed that the bulk of the compact, very 

 strong grey Boulder Clay distributed over the county, appears 

 to underlie the Marine Boulder Clay, as it does in Great 

 Britain, where the two are found in juxtaposition. Specimen 

 No. 8 of this clay taken at Baltimore yielded no microzoa.^ 



In the valley of the River Hen, about one mile north of 

 Skibbereen, is a mound of sand, gravel, and pebbles, con- 

 siderably current-bedded, the material being well rounded and 

 worn. This seems to be a glacial river deposit, and was 

 quite destitute of any organic remains so far as my examina- 

 tion extended. 



^ The following are among the communications, viz. : — Description of 

 the strata exposed during the construction of the Seacombe Branch of 

 the Wirral Railway, Cheshire. Reade and Davies. — Proc. L'pool Geol. 

 Soc, Session 1894-5, p. 327. Foraminiferal Boulder Clay at Great Crosby 

 and Blackpool. — Ibid., Session 1893-6, p, 387. The Glacio-marine Drift of 

 the Vale of Clywd. — Q./.G.S., vol. liii., 1897, pp. 341-348. The gypsum 

 boulder of Great ilroshy .—Proc. L'pool Geo. Soc, Session 1898-9, p. 347. 

 Foraminiferal Boulder Clay at Riverside, Seacombe, Cheshire. — Ibid., p. 

 357. Drift on Moel Tryfaen : Report of Committee, British Association 

 Report, 1899, pp. 419-421. — 6'^<7/. Mag., 1900, p. I15. 



-' It is stated by Jukes in several of the Memoirs of the Geological Sur- 

 vey of Ireland that he has frequently searched the drift in the South- 

 west of Ireland for marine shells, but never succeeded in finding any. 

 I cannot find in these memoirs any reference to Post-Glacial marine 

 deposits. 



