5904 MR. P. F. KENDALL ON A SYSTEM OF [ Aug. 1902, 
there; and an application to my friend Dr. Thornton Comber, of 
Pickering, elicited the following valuable notes :— 
‘The gravel-deposit is only marked as of a small area at Pickering. As far 
as I know, the breadth is accurately recorded, but the deposit really extends 
all the way to Risborough, and is found about 6 feet below the present surface - 
whenever any digging has been performed. The stones are chiefly large, 1 to 
2 feet in diameter, and rounded. They chiefly consist of hard moorland-grits. 
Occasionally I haye found pieces of whinstone-—a large boulder of this, weighing 
about a quarter of a ton, was found embedded some 6 or 7 feet deep in the 
clay, when the men were baring the surface of the limestone, in one of the 
quarries at New Bridge, at the mouth of Newton Dale.’ 
Here, then, appears to be a delta composed mainly of the harder 
rocks out of which Newton Dale was excavated, with some foreign 
rocks, notably a whinstone, which Dr. Comber identifies with the 
Fig. 4.—Comparative series of sections across the valley of Eller Beck 
and Newton Dale. 
-No. 2.—Section across Ellerbeck, 250 yards below 
confluence with Fen Bogs. 
YS fj 
Yj 
Yy 
YY Yy jij 
IW fy 
SY Elierbeck 
No. 4.—Section across Fen Bogs } mile below 
*422G49||Q Sssouve uoNndIg—*, ‘oN 
> 
3 
bo (S. of ) intake. 3 
bo = 
S 
ra) Y / 
: yy 
nH YY /} 
re 400° 0 DZ L, 
No. 5. -Section across Newton Dale 1 mile below 
Fen Bogs intake. 
eaoge spurd OGz 
400° O.D. 
100 200 300 400 500 Vertical 
Feet 
rd 
Scale. + 
200 900 600 800 1000 Horizontal 
(In section No, 3 the peat is represented to scale.) 
Cleveland Dyke that crosses the hills about 2 miles north of the 
intake at Fen Bogs. The coarseness of the material agrees well 
with the expectation founded on the steep fall of the valley. 
The area of gravel mapped as surrounding the Pickering outfall 
is about 2 square miles, but Dr. Comber’s data indicate that there 
