J 
1870.] DE RANCE—LANCASHIRE AND CHESHIRE POSTGLACIAL. 655 
APPENDIX. 
Percentage of the Rocks included in the Glacial drifts of Lancashire 
and N.W. Cheshire. 
Mancuester (mean of three examinations, given by Mr. Binney, 
Trans. Man. Lit. Phil. Soc. vol. x. p. 133). 
Angular. Partly rounded. Total. 
Granites, greenstones, and other igneous 
TROT ACB Hee ae Rae 5:0 10:0 6:0 21 
Slates and Silurians ...........2.....ceeeseeeee 3°66 9:0 8:33 21 
Mountain Limestones ..............0.00e0eeee 1:0 3:0 2:0 6 
@oal=measares)  ....j..ccccccdecceseceosecsccsese 25:33 19:0 5:0 49°33 
New Red sandstones .............2se0ceeceeeee 2:0 0:66 0:0 2°66 
‘SUPUGIEAD COB: conacncadsobancoesassonnesessobeded Le ae soe 1-66 
Gorton, near Manchester (determined by Prof. Ramsay. Mem. 
Geol. Survey, ‘Geology of the country around Oldham’). 
(GiisPT INE) see i et ae) 8, HR GR Ua et 6 
Felson) oir 95 648 pr cent. igneous. 
Porphyritic conglomerate............... 4 
MONSbOMeasacs ceseee ah seccee cemiet ueeeuis 2 
SullpiereNn GAC eapdaodéebadaca sonbonsaeeanee 37 per cent. 
Carboniferous limestone ............0+. 
Bb ac : 
Carboniferous grits ................0.08 a} IPG [pee aratis (Gete novan tse 
EastHam, on the Mrrsry, near BrrrennEap (given by Mr. Hull, 
‘Mem. on Oldham, p. 51). * 
Girannitolnescsscnsesmee cane ease sccnssacna aes 8 
Greenstone epee sence eee cneeicaee 8 
iHelSpariporphyity e-cesssneee see seeceee se 5 > 387 per cent. igneous. 
Me SOME see skceeeas cela ei Soseoeuabenes 7 
Quarizinockiguacnrscsse sere cceees sees 9) 
MPONSEONEC MI ase keen hence ike oe wekusia eas 
NSAUIUNATEN FATAINIS) age oogoponceancabedadosbocnoG 43 per cent. 
Carboniferous limestone ...........+-+: ; 
Carboniferous grits ................0008. il jo? Cade Ganlvoniozots, 
Triassic or Permian sandstone......... 12 
7. On the Postetactan Drposits of Wustern LANCASHIRE and CuHE- 
suirE*. By C. EH. pe Rance, Esq., F.G.S., of the Geological Survey 
of England and Wales. 
Wirral, Cheshire-—The general form of the ground of the peninsula 
of Wirral has already been described in my paper on the glacial phe- 
nomena of the district,—the northern portion being a low alluvial 
plain, with a hill in the centre (on which Liscard is built), rising like 
an island above it, and bounded on the south by a line of old cliff, 
abruptly terminating the various longitudinal valleys which, run- 
ning with the strike of the rocks, traverse the southern portion of 
the district. Much of this low plain is below the sea-level, being 
naturally protected from the sea by a range of sand-hills, about 
* Communicated with the permission of the Director-General. - 
