114 MR. E. W. BTNNEY ON THE PERMIAN AND 



hood of Dumfries. A good example of pebble-beds is seen 

 at Kirkby Rough ; but this rock bears no resemblance to 

 the stone at Knowsley Quarry^ and the two stones cannot 

 well be classed as the same from their characters. 



On the Soft Red Sandstone at Ardwick. 



Mr. Hull, in his memoir previously quoted, and the map 

 accompanying it, brings in by a fault a piece of Permian 

 sandstone between the Lime Works and Ardwick Bridge, 

 Manchester. When Mr. Mellor some years since kindly 

 took me down the pit and showed me this sandstone, it 

 certainly did appear very much like the Permian soft red 

 sand of CoUyhurst ; but I saw no evidence of any fault, 

 further than that it rested on the eroded beds of the upper 

 coal-measures of Ardwick, and was of course unconform- 

 able to them. In my last memoir I described this sand- 

 stone as Trias, and I see no reason for altering my opinion. 

 I had seen the rock some years before near the weir above 

 Ardwick Bridge, and traced it to the latter place. On the 

 dip it has been bored through at Mr. Buchan^s, Messrs. 

 Gallimore's, Hoyle and Son^s, and Leese and Co.^s Works, 

 and the red marls and limestones found under it. In 

 position, it occupies the place of Mr. HulFs soft and 

 mottled sandstone ; and its characters and position warrant 

 its being classed as that rock, rather than with the Vaux- 

 hall sandstone, so far as I have been able to ascertain. 



General Description of the District North of Preston. 



As it is desirable to attempt to connect the Permian de- 

 posits of the south and west of Lancashire with those in 

 the north of the county, as seen at Rougham Point, near 

 Cartmel, and Stank, near Furness Abbey, I give the result 

 of some of my late examinations. The only section hitherto 

 seen by me near Preston is one in the Ribble, below that 



