218 JOWETT AND MUFF : GLACIATION OF BRADFORD, ETC. 
drops below 700 feet at Wibsey Bank Foot. Here the boulder- 
clay has gone over the watershed. A section pointed out to 
us by Prof. Kendall, in the railway cuttings half a mile north- 
east of Low Moor Station on the line to Dudley Hill, shows 
a small pre-glacial valley filled with boulder-clay. The clay 
contains boulders of grit, shale, and limestone, and it is weathered 
to a yellow colour at the top. This section is nearly a mile 
south of the Aire and Calder watershed. A little clay containing 
rounded pebbles of Millstone Grit and gannister was noticed on 
the roadside three-quarters of a mile S.S.W. of Dudley Hill 
Station, about the same distance south of the watershed. 
Along the ridge east of the Bradford basin boulder-clay is 
recorded from several localities, and is very generally distributed 
along its eastern flanks. A very fine section in the brick-pit 
at Thornbury is as follows : — 
Yellow jointed clay with boulders, 
passes into . . . . . . up to 10 feet. 
Blue clay with lenticles of sand, 
which extend up into the yellow 
clay . . . . . . . . . . . . 3 feet. 
Coarse iron-stained gravel . . . . 0-2 feet. 
Stiff blue boulder-clay . . . . more than 45 feet. 
Many large boulders of Coal Measure sandstone, which are 
often finely striated, lie about in the floor of the pit. Limestone 
boulders are not common. They are generally very small, but 
one boulder two feet long was noted. Boulders of Millstone 
Grit, ironstone nodules, and pieces of shale and coal (sometimes 
striated), are also found. 
In the railway cutting on the Shipley branch of the 
Great Northern line, where it passes beneath the Leeds 
and Bradford road, yellowish boulder-clay with chert, grit, 
and sandstone (striated), fills up an old hollow eroded in 
the Coal Measures.* Rather over half a mile south of 
Eccleshill Station the railway cuts through boulder-clay and 
gravel with limestone and chert pebbles, but the cutting is too 
much overgrown to make out their relations. Yellow boulder- 
* T. Tate, loc. cit., p. 105. 
