238 JOWETT AND MUFF : GLACIATION OF BRADFORD, ETC. 
This valley ends in a flat cone with a steep outer edge, an ex- 
cavation in which was reported to have shown fine yellow sand 
four feet thick. The soil at the top was a yellow loam. This 
channel was in operation for only a short period, and was probably 
eroded during an oscillatory movement of the ice, since the 
Wide Lane channel cuts down to a lower level at its termination. 
At Branshaw Wood, behind Oakworth House, an overflow- 
channel runs as a winding valley 50-75 feet deep completely 
through the watershed. Its original contours are somewhat 
obscured by quarrying operations. At its head, where it opens 
out into the Newsholme Beck Valley at 845 feet, it shows the 
marked deflection to the west away from the edge of the ice, 
which has already been noticed in connection with the Griff 
W^ood Valley. This channel must have carried off the waters 
of the Newsholme Lake, when the Worth Lake was discharging 
by the gap at Sugden End. It terminates in the Worth Valley 
in nearly level ground at 720 feet, which is the intake-level of 
the Sugden End gap. 
The Outlets of the Glushurn Lake. — It will be necessary 
at this point to refer back to the conditions which obtained 
around the head of the Worth Valley at the period of maximum 
glaciation. A stream pouring through the " Great Nick " 
on the south-west shoulder of Combe Hill entered the 
Worth Lake, which discharged through the Harbour Hole 
channel at a level of about 1,250 feet. The effect of the shrink- 
age of the ice in allowing the Worth Lake to discharge at lower 
levels (1,120 and 960 feet) was to expose the low part of the 
Pennine divide between Combe and Crow Hills, and the ridge 
between the Worth and Newsholme Valleys. Over both these 
ridges lakelets, held up by the ice, discharged into the Worth 
Lake as already described (pp. 227 and 236). Another effect 
was to cause the desertion of the Great Nick on Combe Hill, 
and allow the waters to escape at a lower level round the north- 
east shoulder of the hill into the Newsholme Lake. The case 
is almost parallel to the one already described (p. 231), where 
the Harden Lake discharges at the maximum extension of the 
ice into the Bradford Lake, and during the retreat of the ice 
into the Cottingley Lake. 
