ADAMSUN: SECTIONS EXPOSED IN SKIPTON AND ILKLEY RAILWAY. 369 
No. 13, which was entirely cut through boulder clay. It had a 
length of 300 yards, and its greatest depth was 22 feet. Some large 
boulders of encrinital limestone with ice scratches, had been taken 
out of this clay ; others of gritstone, some yellowish, some various 
shades of a red colour. An embankment, some 500 yards in length, 
brought the party to the point where the railway crosses the main 
street of Addingham by a bridge of 52 feet span. We now went a 
short distance into a cutting, which will be eventually 1,300 yards 
long, to note the boulder clay through which it is cat. It is of a 
dual character, the upper being a yellow clay, containing prin- 
cipally blocks of local gritstone ; the lower division a stiff dark blue 
tenacious till, containing a quantity^ of rounded and subangular 
blocks of limestone and sandstone, many of the former ice 
scratched. The blocks of limestone were observed to be much more 
numerous in the lower division than in the overlying yellow clay. 
The few remaining cuttings in the Ilkley direction are also through 
similar clays, some showing the junction in a marked manner, but 
they do not call for any detailed notice. 
NOTES ON FLINT-FLAKE IMPLEMENTS FOUND IN THE ISLE OF MAN. 
BY JAMES E. BEDFORD. 
About a year ago the writer had an opportunity to examine some 
sections of gravel and sand on the hillside opposite to Peel Castle. 
The material was much cross-bedded, and it was difficult to 
determine whether it was a raised sea-beach or an old river-terrace. 
The situation of the beds, and their elevation above sea-level, proves 
them to be old. They are at different elevations on the hillside, and 
within a few yards of the present sea margin, and about the same 
distance from the estuary of the stream or river running into the 
Harbour of Peel. 
The rock forming the base is clay-slate of Lower Silurian or 
Cambrian age, dipping at a high angle. Lying upon this rock is a 
bed of gravel three or four feet thick, then a layer of sandy loam, and 
upon this about 10 or 12 inches of surface soil with vegetable 
