ON ERBATIC BLOCKS OP THE BRITISH ISLES. 287 



Wykeham, Vale of Pickering. — From gravel-pit. 



1 Dolerite ; 1 Cheviot porphyrite. 

 1 Cheviot andesite ; 2 grey Hints. 

 1 Elseolite-syenite, (?) a small pebble. 



Communicated by the Boulder Committee of the Htdl Geological Society. 



Ayton, near Scarboro'. — 

 1 Rhomb-porphyry. 



Hutton Bushell, Vale of Pickering — In gravel-pit at east end of 

 village. 



1 Rhomb-porphyry. 



Wykeham, Vale of Pickering. — In sand-pit behind the Dovpne Arms 

 Hotel. 



Cheviot porphyrite ; Lias. 



Seamer. — In glacial gravel in pit contiguous to railway station. 



Rhomb-porphyry; Cheviot porphyrite ; basalt; red granite, magnesian lime- 

 stone (Roker type) ; Carboniferous limestone ; black flint Lias ; and 

 much sandstone from local sources. 



Etton, near Beverley. — In strong Boulder Clay at east end of the 

 village. 



Cheviot porphyrite (several varieties). 

 Grey wacke sandstone ; Lias, &c. 



Gardham, near Beverley. — A shallow pit in chalky gravel west of the 

 village contained a few foreign pebbles, among which Cheviot porphyrites 

 were predominant. Basalt-Carboniferous limestone was also noted. 



By Thomas Sheppard, Esq., F.G.S. 

 Meaux, near Beverley. — 



Rhomb-porphyry ; Cheviot porphyrite ; Carboniferous limestone and sand- 

 stone ; Lias. 



By J. W. Stather, Esq., F.G.S. 



Leconfield, near Beverley.— Iw old gravel-pit east of Pump Bridge, 

 Gravel consisting of chalk with a few foreign pebbles, chiefly Cheviot 

 porphyrites and greywacke sandstone. 



Cherry Burton, near Beverley. — Chalk capped with 8 feet of Boulder 

 Clay half-mile east of station. Among the pebbles of non-local rocks in 

 the clay Cheviot porphyrites greatly preponderate. Basalts are also 

 plentiful. Greywacke sandstone and Lias were also noted. 



Bartindale Farm, near North Burton. — Fifty yards east of house. 



Basalt, 4 ft. by 3 ft. by 3 ft. 



Grindale-on-the-Wolds. — Many boulder.s occur in this neighbourhood, 

 and a pavement has been made of them at Field Spring. Basalts are the 

 most common. 



