Vol. 58.] GLACIER-LAKES IN THE CLEVELAND HILI1S. 479 
illustration. This section is exposedin a pit at Danby Brick-and-Tile 
Works (fig. 1, p. 478). 
The red and blue clays display no visible bedding, but the leaf-clay 
(that to which Canon Atkinson referred) contains interlaminations of 
exceedingly fine sand. He mentions between 24 and 30 alternations 
in 4 inches, but this is an underestimate. A specimen which I 
took shows 24 coarser layers to the inch, and each of these includes 
about 8 finer lamine, making in all about 200 lamine to the inch. 
The laminations at one side of the section show a high north-easterly 
dip. Occasional stones, flat, and ‘as large as a tile,’ are said to occur. 
One such large stone yielded, when broken up, about half a cartload 
of fragments. The leaf-clay unfortunately has not been penetrated 
by the excavation ; and at the Tile-Works in Little Fryup, a boring 
was put down 60 feet in laminated clay without reaching the Lias.’ 
A section (fig. 2) in the brickyards at Dringhouses, west of York, 
gives an instructive view of similar beds with the underlying 
deposits. The section was drawn in my notebook in 1895, before 
I had recognized its significance. The brickyard is situated 
between the reticulated northern series of morainic hills, and the 
single sharply-defined moraine-ridge that is so conspicuous a feature 
for 4 or 5 miles to the westward of York. 
Fig. 2.—Section in the brickyard at Dringhouses, York. 
CUTZ =O LLL—LL_____¥#PWwYwY. 
Zz ¢ Z oe 52 SSS Z — 
SS 
lon 
[1=Gravel ; 2=Laminated clay (Warp).| 
My notes state that the laminations are parallel to the surface of 
the gravel, to the height of 10 or 12 feet above it. A visit paid to 
the section a few days before the reading of this paper, showed 
that the gravel-mound had been cut away to the floor-level of the 
pit, but the steeply-inclined laminz of the Warp could be observed 
dipping into the face of the section. 
* Mem. Geol. Surv. ‘Eskdale & Rosedale’ 1885, p. 51. It is important to 
observe that this is mapped as Boulder-Clay, no doubt because of the absence 
of alluvial features. 
