ON THE EBKATIC BLOCKS OF ENGLAND, WALES, AND IRELAND. 285 



sandstone rock. This group is very notewortby, as it contains so many 

 varieties of basic rocks (dolerites, &c.) of a type either absent or very 

 rare in other localities. 



Heaton Merseij, near Stockport, Bailey's brickyard — 



Largest about 1 cub. ft., smallest about .3 cub. in. ; some in each con- 

 dition ; all moved ; several are well scratched longitudinally, especially 

 the limestones ; Dalbeattie, Criffel, Eskdalc (Cumberland), Butter- 

 mere ; ? Cairnsmore of Fleet (Galloway). 



Specimens 



Eskdale granite .......... 3 



Buttermere granophyre ........ 2 



Yewdale breccia ......... 2 



Bright pink micaceous porphp-y 1 



Crififel granite 1 



Dark green rock with augite ....... 1 



Fine hornblende syenite 1 



Granite 1 Cairnsmore of Fleet 1 



Yellowish quartz porphj-ry ....... 1 



Ehyolite ..." 2 



Andesite ........... 5 



Dalbeattie granite 1 



Dalbeattie oranite ? 1 



Dolerite (fresh) 3 



Dolerite (coarse) 1 



Dolerite 1 



Peridotite (much decomposed) ? 1 



Andesitic ash 3 



Millstone grit 3 



Coal-measure sandstone 4 



Coal-measure sandstone (red) ....... 1 



Gaunister ........... 1 



Carboniferous limestone ........ 3 



Silurian grit 3 



New Ked sandstone 3 



47 

 Manchester. — Stretford Road, opposite No. 530 — 



4 ft. X 4 ft. X 3 f t. ; scratched on all \isible faces, mostly parallel to long 

 axis ; scratches on one flat surface are parallel to but in opposite 

 direction to those on the other ; Coal-measure sandstone ; in boulder 

 clay, about 30 ft. from the surface ; boulder clay. 



Stretford Road, junction with Chester Road. About three tons of 

 broken-up Coal-measure sandstone — relics of a great boulder found in 

 a sewer-heading. It was finely striated, but no direction could be assigned. 



Barton-upon-Inuell. — Manchester Ship Canal, 200 yards west of 

 Barton Hospital — 



3 ft. 10 in. X 3 ft. 8 in. X 1 ft. 6 in. ; subangular; well scratched on visible 

 face ; grey Coal-measure sandstone. 2 ft. 6 in. x 2 ft. x 1 ft. 6 in. ; 

 rounded, triangular in section ; longitudinally scratched ; granite, 

 Eskdale. 



50 yards from east end of Sticking's Island — 



3 ft. C in. X 3 ft. X 2 ft. G in. ; river- worn ; andesite ; L.D. 



2 ft. 9 in. X 2 ft. 4 in. x 1 ft. 2 in. ; river-worn ; andesitic ash ; L.D. 



Irlam, in Railway Goods- Yard — 



2 ft. 3 in. X 2 ft. 3 in. x 1 ft. : subangular; Coal-mcasurc sandstone. 



