and " Roches Moutonnees" 487 



chiefly in several able memoirs by Professor Sedgwick ; and 

 respecting the more striking erratic phenomena, such as the 

 dispersion of the Shap granite, there has been much discus- 

 sion. This subject, indeed, has elicited several papers of the 

 highest order of geological investigation from the pen of Mr. 

 Hopkins of Cambridge; but no detailed examination, that I 

 am aware of, has been made of the superficial formations gene- 

 rally, with the view to determine, as respects the other rocks, 

 either the direction or the sera of the transport on the differ- 

 ent sides of the central mountains. Scratched rocks afford 

 evidence on this subject of a most satisfactory kind. Up till 

 this time, however, they have not been noticed in the lake 

 district. It is hoped, therefore, that the present communica- 

 tion will prove not unacceptable to geologists, as a slight con- 

 tribution towards a better understanding of the erratic phe- 

 nomena of the lake mountains. 



The credit of this interesting discovery is due to Edward 

 Wakefield, Esq. of Birklands, near Kendal. Knowing that 

 in the cuttings of the Kendal and Windermere railway, as 

 well as in quarries adjoining, the surface of the rocks had 

 been laid bare in many places, Mr. Wakefield instituted a 

 careful search along the line in May last, and was so for- 

 tunate as to discover two extremely well-marked examples 

 of scratched rocks. While on a visit in Kendal in July I 

 was shown these cases by Mr. Wakefield : in company with 

 him several others were afterwards noticed. I gave a short 

 account of these rocks to the Geological Section of the British 

 Association at the Edinburgh meeting in August, and propose 

 now to describe them in greater detail. 



II. Markings at Jacob Wood* 



The best marked case occurs on the north-west side of 

 Jacob Wood, about one mile south of the Staveley station of 

 the Kendal and Windermere railway, about fifty yards from 

 the railway on the north-east side. It will be most conveni- 

 ently visited by stopping at the Staveley station, and then pro- 

 ceeding towards Kendal along the turnpike road. Here, on 

 the northern side of a gently rising, inconsiderable undulation 

 of the ground, near to many projecting rough slate rocks, the 

 scratched surfaces are seen. By the removal of a covering of 

 till, containing boulders, several feet in depth, a surface of rock 

 was laid bare extending 53 feet 3 inches from north-east to 

 south-west by 15 feet 9 inches in a direction perpendicular 

 to this. It was uncovered about two years ago in making a 

 road into the adjoining fields ; the rock was to have been re- 

 moved, but it was found so difficult to work, from its great 



