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DESCRIPTION OF THE SECTIONS. 
No. 1. is a section taken E. and W. nearly in a straight line, through the 
places mentioned above it, from Cheshire, across Derbyshire, into 
Nottinghamshire. 
No. 2. is a section at right angles to No. 1, or running N. and S. nearly.— 
It bends, however, a little to the E. of S. and does not run exactly 
in a straight line, in order to take in the most interesting points. 
The faults in these two sections, which are made to break the mountain 
limestone, must not be understood as all actually existing in the places in 
which I have put them. Some of them, indeed, are inserted on the autho- 
rity of Mr. Hopkins, and are correct; others are merely probable. The 
reason for their insertion was to show the way in which the limestone is 
fractured, and the toadstone brought up to the surface at different points, 
without regarding accuracy in the situation of these points and fractures, 
which could only be preserved in sections on a much larger scale, and con- 
structed with great care and labour. 
No. 3. isa section running about N.E. and §.W. from Crich to Ashbourne, 
being a much shorter distance than the others. The principal flexures 
in the limestone shale are shown, but there are probably others which 
are not noticed. 
No. 4. is a section across the interesting valley of Ashover. 
All the sections must be understood to be very rough representations of 
the actual facts. They are drawn to no regular scale, either as to height or 
length, but preserve pretty nearly the relative distances between the places ; 
while the features of the country, and the relative heights of the hills and 
depth of the valleys, are given from recollection or guess. They will be 
found, however, I hope, to give a correct idea of the relative positions of the 
rocks. 
In No. 1. the faults in the coal measures, &c. are neglected, there existing 
not the same reason for their insertion as in the mountain limestone. 
