430 
CI«ARK : GLACIAL SECTIONS. 
further on, and reached to the base of shaft III. These facts 
were told me by the foreman, as the shafts at my first visit were 
already filled in ; but the remaining heaps of sand, clay, and 
boulders verified his statements satisfactorily. 
Shaft VI. when first seen was sunk to 27 feet entirely in 
boulder clay. The drift, four feet high and about three wide, was 
driven half way towards it, and showed sand-bed B to a distance 
of 10 feet in the floor and 21 feet in the roof; whilst two or three 
feet beyond was a thin bed of gravel in what otherwise looked 
like ordinary boulder clay. The dip of the upper surface of the 
bed was the same, but more inclined, as shown in the shaft. The 
men had met it in the drift about 8 feet on in the roof, thus giving 
39 feet in all for the horizontal direction, which shows a thickness 
at this part of 15 feet. The section indicates, however, that the 
bed is wedge-shaped, thinning out below. 
The completion of shaft VI. showed that this sand-bed was 
not continued far upwards, for the dip of the lower surface would 
have intersected the shaft about 35 feet from the top. Shaft VII. 
contained much sandy gravel in boulder clay so far as sunk ; but 
the rush of water at 23 feet (24 feet above the drift floor) led to 
its abandonment. In shafts VIII. and IX. two new sand-beds 
(D and E) were met, D near the top appeared to lie in a hollow, 
the sections in the two shafts dipping towards each other. E was 
more than 40 feet down, partly in the drift ; it was three feet thick, 
of red clay-seamed sand, a foot lower in shaft VIII. than IX. 
Nothing but very stony boulder clay was seen until shaft XII., 
550 feet from the beginning and 350 feet from the bubbling shaft. 
Here there was a thin sand-bed (F) of six inches, about half way 
up the shaft. The next shaft, however, was entirely filled with 
sand below a foot of soil ; and the same was true of shafts XIV. 
and XV., which were only 12 or 15 feet deep and close together. 
The only further point of importance was the finding of 
masses of coal ; a rolled lump being brought up from shaft III. 
