Yorkshire Boulder Committee : Thirteenth Year's Work. 357 



Rhomb-porphyry. Two specimens. From the brick-field on 

 the Scarborough road, one mile north. 



Flamborough. 



Rhomb-porphyry, 3 in. in diameter. Brick-field west of 

 village. 



Garton-on-the-Wolds. 



Rhomb-porphyry. Two pebbles, each about 3 in. in diameter. 

 From the Craike Hill Quarry. 



Gristhorp. 



Rhomb-porphyry. Granite from Angermanland. Collected 

 on the beach. 



RUDSTONE. 



Rhomb-porphyry, 3 in. in diameter. Found, along - with 

 numerous other boulders of the usual Holderness type, in small 

 quarry opened in the Gypsey gravels, I 1 /? miles north of the 

 village, on the road to North Burton. 

 Seamer. 



Basaltic rock, 3 ft. x 2 ft. x 2 ft., 200 feet above Ordnance 

 datum. Seamer Moor Lane, immediately north of Waydale 

 Lane end. 

 Speeton. 



Rhomb-porphyry ; Silurian (?) fossilferous rock (?), 400 feet 

 above Ordnance datum. From the moraine on which Speeton 

 Mill stands. 



Thornwick Bay, Flamborough. 



Augite-syenite (Laurvikite), 4 in. x 3 in. x 3 in. 



Note.— Following a suggestion in the Holderness memoir, 

 we have become accustomed to regard Denmark as the source 

 of the pink flints common in the boulder clays of Holderness. 

 This proves to be erroneous. Mr. A. Jesson, of the Danish 

 Geological Survey, recently informed the Secretary (Mr. Stather) 

 that pink Hints do not occur in either the cretaceous rocks or 

 1 lie drifts of Denmark, and are quite unknown there. 



Reported by P, V. Kendall, F.G.S., and II. B. Muff, 

 Goathland, near Scarr Wood. 4cSo O.D. 



In red boulder clay : mica-schist, gneiss, Cleveland dyke, 

 chalk-flint, Triassic sandstone, Jurassic sandstone, Cheviot por- 

 phyrite, and sparagmite (?) sandstone. 



GOATHLAND, 200 yards east of the church. 520 O.D. 

 In boulder clay : porphyrite, flint. 



(900 December i. 



