Yorkshire Boulder Co7nmittee : Sevefiteenth Year's Work. 17 



Thirsk. 



Gravel-pits. 



Cheviot porphyrite, 3. 



Carboniferous cong"lomerate, 4. 



Shap g^ranite, at least, 30. 

 Rekhill. 



Gravel-pit. 



Carboniferous conglomerate, i. 



Shap g-ranite also found at Richmond, Swaledale, and 

 Wemmergfill, Lunedale. 



Boulders reach their highest limit at about 700 ft. — 725 

 on Wool Moor, above Upsal ; 675 on Hood Hill, near Kil- 

 burn — and consist of dolerite, millstone grit, and black lime- 

 stone. 



Reported by W. Hemingway. 

 Church Carlton, near Barnsley. Found in cutting drain. 

 Micro-granite. 



Mr. Hemingway writes: — 'There has been a considerable 

 amount of draining done in this district (Barnsley) during the 

 present year about Carlton and Royston, the most part of 

 which has been in undisturbed boulder clay. The observations 

 I have made confirm my opinion that the Scandinavian and 

 Lancashire material found in the district has nothing what- 

 ever to do with the true glacial beds of the district, but that 

 they have been carried here and distributed by subsequent 

 agents. The rocks met with in the undisturbed beds are 

 lavas and ashes of the Borrowdale series, porphyritic eurites 

 of St. John's Vale, undetermined rhyolites and diabases, also 

 a single example of olivine-basalt. I have not detected as 

 yet a single example of Eskdale or Ennerdale rocks, nor any 

 of the characteristic east coast rocks, in the undisturbed beds 

 recently exposed in the Carlton drains.' 



Reported hy J. H. Howarth, F.G.S., and W, Simpson, F.G.S. 

 ExTWHiSTLE Moor. In Rapes Clough, near Widdup Cross 

 (Lancashire side), 1,200 O.D. 

 Silurian grit. 



Reported by E. E. Gregory. 

 Slippery Ford. Four miles west of Keighley, 900 O.D. 

 Small boulder 6 ins. long, Borrowdale Ash, sheared. 



Reported hy T. Sheppard, F.G.S. 

 Bowes (North Yorks.). In Village. 

 Shap granite, several boulders. 



1904 January i. B 



