Raping af Pillstoiie §nt, at 
fang ^sljt0a, near §rktd. 
By Prof. C. LLOYD MORGAN, F.O.S., Assoc. R.S.M. 
T he object of this note is to correct an error in the mapping 
of the Millstone Grit on the hill above the village of 
Long Ashton. 
The dotted line on the accompanying map shows Mr. 
Sanders’ boundary of the Grit, followed by the Geological 
Survey. The area diagonally shaded shows the limits of the 
Millstone Grit according to my own observations.* 
That which Mr. Sanders took to be the northern and eastern 
boundary of the Grit I hold to be a band of reddish Sandstone 
in the Upper Limestone Shales, which crops up somewhat 
boldly at the surface. The beds which immediately overlie it 
have been recently rendered visible in a section exposed during 
the formation of a cricket-field by Mr. Kemp, the Head Master 
of Long Ashton School. The section is in parts confused, 
* I first visited Long Ashton Ridge with my friend, Mr. James 
Dallas, F.L.S., then Curator of the Bristol Museum, and had, for 
awhile, the advantage of his advice and assistance. Since his appoint- 
ment to the Curatorship of the Exeter Museum, I have been forced to 
continue the observations alone. And for the conclusions reached I 
am alone responsible. 
N 
