ON THE GEOLOGY OF CENTRAL CHESHIRE. 
3 
and tlie higher beds of the water-stone are seen dipping W.S.W. 
by W. from 8^ to 10^ More northerly, at Brownlow Hill, the 
water-stone dips W.S.W. 10^, and is but a short distance from 
the bunter-sandstein, which lies to the W. at Timperley, where 
it dips S. by W. 4° : between these places at Clay Hall, very pos- 
sibly occupying the fault, red marls and gypsum are found : be- 
yond this point he had not been able to trace this fault. 
Commencing on the S.E. side of the Peckforton fault, the 
lias, as mentioned by Murchison in his " Silurian System, is 
found at Audlem. The salt measures appear from under it; 
occupying the country to a line drawn from Madeley to Beeston 
Castle as a general boundary. After this point the deep sand 
or drift occurs, which at Coppenhall is 70 feet thick, and teeth 
and bones were found in it ; one of the teeth was three inches 
long. The salt next appears at Weaver Hall, and extends thence 
along the Weaver, to near Vale Royal. This salt is identical 
with that found at Northwich : at both places the rock salt is 
found. The field of salt extends in an easterly direction to 
Middlewich, where the brine is worked, and from there can be 
traced, by borings and gypseous marls, along the Dane to Con- 
gleton, and along the Wheelock to Lawton. Thence up to Bosley, 
the range of Mow Cop and Cloud Hills extends. These are of 
limestone, millstone grit and coal; and extend in a more sou- 
therly direction towards Madeley. The infra-gypseous and 
water-stone beds lie between Congleton and Crossledge Hall. 
Extending along the same side of the Peckforton fault, water- 
stone is found by the Peover viaduct. The next rock is Alder- 
ley Edge. This range is of bunter-sandstein. The beds vary 
greatly in character ; copper, lead and cobalt are found there. 
The dip varies from W.N.W. to W.S.W. and from 10° to 18°. 
Alderley Edge forms part of a long insulated range of high 
ground, surrounded by drift, probably continuing to the N.W., 
as beds of bunter-sandstein of the same character are seen near 
Styall, at Quarry Bank, and in the course of the Bollin. The 
