ON TEE DELFT-BEDS OF THE N.W. OE ENGLAND AND N. WALES. 83 



8. The Deift-eeds of the Noetic-West of England and Noeth 

 Wales. — Part II. Their Nattjee, Steatigeaphf, aad Distei- 

 btjtion. By T. Mellaed Beade, Esq., C.E., E.G.S. (Bead 

 November 15, 1882.) 



[Plate V.] 



Contents. 

 Introduction. 

 Eiver-basins. 



Drifts of the Basin of the Eiver Mersey. 

 „ „ „ Dee. 



„ Eibble. 

 ,, Coast from Blackpool to St. Bees. 

 ,, North Coast and Mountain-district of North Wales. 



Classification and Conclusions. 

 Pre-drift Surface of the Land. 

 Bed Sand and Bubble debris of the Trias. 

 Gully-gravels. 



Low-level Boulder-clay and Sands. 

 Mountain- and Hill-Drift. 

 Conclusion. 



Inteodttction. 



In Part I. of this paper, devoted to the " Shells of the Lancashire 

 and Cheshire Low-level Bonlder-elay and Sands "*, read before this 

 Society in 1873, 1 discussed in outline some of the physical problems 

 involved in a correct interpretation of the phenomena of the Drift 

 as it is exhibited in Lancashire and Cheshire. 



It is now my intention, by the aid of numerous sections I have 

 been more or less continuously recording before and since that time, 

 together with observations in other parts of England and in Ireland, 

 Scotland, and Wales, to redraw my picture with a firmer hand. This 

 delineation of the Glacial period in the north-west of England will 

 rest almost entirely upon my personal observations ; but, at the same 

 time, I shall not neglect those important additions to our knowledge 

 contained in the Geological Survey memoir by Mr. C. E. De Bance, 

 E.G.S.f, or the valuable papers by that untiring observer Mr. 

 Mackintosh, E.G.S.J, by Mr. Shone, E.G.S.§, the late Mr. Binney, 

 E.K.S., and others by Messrs. Tiddeman, Goodchild, and the late 

 Bev. Clifton Ward, published at various times in the Quarterly 

 Journal of this Society. Neither will the more general papers by 



* Quart. Journ. Geol. Soc. February 1874, vol. xxx. pp. 27-37. 



t Superficial Geology of South-west Lancashire. 



+ " High-level Shelly Deposits of the Eastern Slopes of the Welsh Mountains," 

 Quart. Journ. Geol. Soc. vol. xxxvii. 1881, pp. 351-369. 



" Dispersion of Erratics of West of England and East of Wales," Quart. Journ. 

 Geol. Soc. vol. xxxv. 1879, pp. 425-453. 



§ " Glacial Deposits of West Cheshire/' Quart. Journ. Geol. Soc. vol xxxiv. 

 p. 383. 



Q. J. G. S. No. 154. h 



