XI. An Account of the Tracks and Footmarks of Animals found 

 impressed on Sandstone in the Quarry of Corncockle Muir, 

 in Dumfriesshire. By the Rev. HENRY DUNCAN, D.D. 

 Minister of Ruth we 11. 



( Read January 7. 1828J 



-I HE sandstone quarry of Corncockle Muir is situated betAveen 

 the rivers Annan and Kinnel, about a mile and half above their 

 confluence, and not quite three miles from the town of Loch- 

 maben in Dumfriesshire. It is near the top of a low, round- 

 backed hill, which stretches about half a mile in a westerly di- 

 rection, almost in the line of the rivers. This hill rises out of a 

 valley of irregular surface, terminated, at the distance of some 

 miles, on the north and north-west, by a mountainous range of 

 transition rock ; on the south by an arm of the same range ; and 

 on the east, at a greater distance, by lower elevations, consist- 

 ing, according to Professor JAMESON *, partly of floetz-trap and 

 partly of the independent coal-formation. The valley itself is 

 said by the same authority to be of the independent coal-forma- 

 tion, lying on the transition rock, and contains considerable 

 quantities of sandstone interspersed in various parts, and stretch- 

 ing as far as the bottom of the mountains. 



The sandstone of which the quarry in question is composed 

 is, like most other sandstone in the county, of a reddish-brown 

 colour, and is believed to be what is called in England the new 

 red sandstone. Its texture is friable, and its strata of very un- 



f In his Mineralogical Survey of Dumfriesshire. 



