2 
THE GEOLOGIST. 
and Winsford. The N.W. boundary is continued from tlie 
Peckforton hills by the insulated rock of Beeston Castle^ dipping 
E.N.E. 12°. The boundary is again carried on by the rising 
ground which recommences on the N. of Beeston Brook_, be- 
tween Tarporley and Four Lane Ends, near a brook, between 
which places the rock dips S.E. by S. 7°, and thence continues 
by Portal Lodge to the brook by Luddington Hill. From Tar- 
porley to this last place, the road is taken along the range of 
the strata. Sand and gravel from thence cover the country. A 
fault separates the salt districts of Winsford and Northwich. 
This extends along the course of the Weaver from Vale Royal 
to the E. of Northwich by Leftwich. Between the two districts 
just mentioned, salt-springs rise near Eaton and Hartford, 
thrown up, most probably, by the fault. A sinking was made 
near the last-mentioned spring to a depth of 80 yards, and brine 
was not found. The salt at Northwich lies at a depth of 45 
yards ; at Wharton, on the western part of the Winsford district, 
at a depth of 50 yards. At Hartford Clough and at Leftwich, 
attempts were made to reach the brine ; but were abandoned on 
account of the great depth of sand and gravel. From this point, 
deep drift covers the country to Mere, but borings, sufficient to 
supply exact information, have not been made. Those, however, 
made at Wincham, on comparison with the Northwich sinkings, 
seem to indicate that a dislocation exists between those two 
places. The borings of Wincham were as follow: — Soil and 
marl nine yards, plaister and marl fifty yards, rock salt two or 
three inches, marl and plaister forty yards, when the common 
red marl was reached, and the boring was not continued. A 
fault must also occur between Knutsford and Mere; gj^seous 
beds being found at Mobberly, near the fii'st place, and near the 
latter the water-stone beds ; these last dipping to the south, and 
so situated, that, if continued on the range, they would occupy 
the place of the gypseous beds. A little more to the north by 
the Boll in, near Bank House, is a sudden rise in the ground; 
