284 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [| Mar. 8, 
feet. 
At Middlewich rock-salt is not found ..................... 214 below sea-level. 
At Wincham no workable salt or brine was found at ... 200 ss 
At Winsford rock-salt and brine are found at ............ 90 
At Winsford brine stands at about sea-level. 
At Hartford neither rock-salt nor brine was found at ... 138 
At Northwich rock-salt and brine are found at ... 55 to 39 
At Northwich the level at which the brine stands.. 34 to 46 
At Marston (Mr. Nieuman’s pit), rock-salt found ...... 27 
9 
At Marston, level of brine when at full work ............ 5 above sea-level. 
At Marston, level of brine when pits standing.......0.... 32 K 
At Barnton brine ‘was: foutid/ at oc. 0eedess 2s deneda dee cde be 130 below sea-level. 
At Barnton brine rises to the surface .........ssscecesseee 50 above sea-level. 
At Acton, brine was not found ab .. xcecmsnaace«sccchen skemene 250 below sea-level. 
At Frodsham Bridge rock-salt was not found at......... 450 - 
At Frodsham Bridge a weak brine was found at......... 250 sage 
The Peckforton hills have been described by Sir R. I. Murchison. 
To the west of these hills and a line prolonged from thence across 
the eastern side of Delamere Forest rock-salt has not been found, 
neither has brine, save at the springs at Aldersey and, as before men- 
tioned, in the valley of the Weever below Northwich, and the springs 
at Dunham and Millbank mm Cheshire, and Woolden and Woolstone 
in the adjoming part of Lancashire. Aldersey, the most southerly of 
these, is situated im a valley lying between the westerly side of the 
Peckforton range and the low hills of Bunter sandstein lying on the 
easterly side of the Dee. The brine was here formerly worked to a 
small extent. The springs are met with near Aldersey Hall; they 
rise from drift-clay and sand which occupy the centre of the valley. 
The dislocation is here a considerable throw-down to the west, the 
Bunter sandstem beds at the hills on the western side bemg high in 
the series. The dip on both sides of the valley is in a general easterly 
direction. 
The waterstone beds occur at Overton near the southern extremity 
of the range, dipping 15° E. by S. 
Along the valley of Beeston Brook and the Gowy, between the 
northern extremity of the Peckforton range and the south of Dela- 
mere Forest, a dislocation having a north-west and south-east direc- 
tion runs. From the great extent of drift and the occurrence of but 
few and distinct exposures of rock along the flat, on the level lands 
lying along the banks of Beeston Brook and the Gowy, I have not 
been able satisfactorily to prove the same, but to the west of the 
Peckforton fault the throw-down to the south-west probably is marked 
by the course of the Gowy. The chief lmes of dislocation affecting 
Delamere Forest are the Peckforton fault above-mentioned passing to 
the west of Handley, Tattenhall and Tarporley, near Utkmton, and 
Oak Mere; a line of fault ranging almost magnetic N. and S. pass- 
ing between the waterstone at Willington and Kelsall dipping E. by 
S., and the Bunter sandstein at Eddisbury Hill dippmg 4° N.N.W.; 
between the Bunter sandstein capped with waterstone at Simmond’s 
Hill and Heycliffe dipping E. by S., and the waterstone at Finney 
Hill dipping W.N.W.; between the Bunter sandstein of Alvanley, 
Helsby and Beacon Hill, near Overton, dipping easterly, and the 
Bunter sandstein of Five Crosses and Frodsham dipping S.W. Thence 
= ee So ee 
