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to be about 1,000 feet thick at Stockport, but the base has 
not been reached. It is easily distinguished by a bright red 
colour, and contains no pebbles. Small seams of well-rounded 
grains of sand frequently occur through the whole of the 
beds. With the exception of a small outlier at Torkington, 
the Permian Sandstone is first seen near Stockport on the 
west or downthrow side of the Red Rock Fault, where 
the undisturbed Permians are in contact with highly- 
inclined beds of the Middle Coal Measures. From this 
exposure to Tiviot Dale Station, near the confluence of the 
rivers Goyt and Tame, which thence continue as the Mersey, 
the members of the Permian series succeed each other with 
a steady westerly dip, but are occasionally obscured by 
Glacial and Alluvial deposits. From the river to Sandy 
Lane the ground rises abruptly to about 250 feet above 
Ordnance datum, but at the summit the solid geology is 
masked by 40 feet of Boulder clay, with intercalations of 
sand. 
A shaft has been sunk through the line of junction 
between the older beds and the glacial clays and sands laid 
down upon the old escarpment, and large boulders have been 
observed pressed into the Permian Marl, probably by the 
glacier which ploughed out the valley, now extending many 
yards below. 
At the corner of Coronation Street and Sandy Lane a shaft 
has been carried to a depth of over 60 feet, giving a valuable 
opportunity for studying the underlying rocks. As such an 
opportunity very rarely occurs, every effort has been made 
to take observations as the work proceeded, and a large fund 
of information has been obtained from the few hundred feet 
excavated up to the present time. The shaft just mentioned 
touches the lowest point in the so-called Permian beds yet 
reached in the excavation. A deep well boring at a short 
distance has, however, afforded evidence as to the thickness 
of the Marl, for on referring to the section, it will be seen 
