842 
THE LEICESTERSHIRE COAL FIELD. 
SOME INACCURACIES UPON THE GEOLOGICAL 
SURVEY MAPS AND SECTIONS OF THE 
LEICESTERSHIRE COAL-FIELD. 
Having' been in a position to verify portions of the one- 
incli Geological Survey maps and some of the vertical and 
horizontal sections of the coal district between Asliby-de-la- 
Zoucli and Burton-on-Trent, I think the errors discovered in 
them should be made known, so that those interested in the 
geology of the locality may not be misled. 
(a) Taking the one-inch nuip first, on quarter sheet 
63, N.W. 
i. —At one mile to the S.E. of Overseal village, where 
the word “Derbyshire” occurs, there is an exposure 
or out-crop of the Permian “ brecciated con¬ 
glomerate.” 
ii. —The Fault marked as running for a distance of 
nearly one mile from the E. end of the reservoir 
on Ashby Woulds in a N.W. direction is entirely 
wrong; the white line should have gone in a 
N.N.E. course from “ Hanging Hill,” near Moira, 
towards “ Wooden Box ” (Woodville, as the place 
is now usually called). 
iii. —On quarter sheet No. 71, S.W., the Fault shown 
as running N.W. and S.E. at about half a mile to 
the E. of Swadlincote Railway Station is in reality 
only about a quarter of a mile from that station. 
Other minor errors might be mentioned as having been 
made upon these two maps were it necessary to do so. 
(b) Upon the Horizontal Sections, Sheets Nos. 49 and 
52, I notice the following inaccuracies. Upon No. 52 in 
Section 2, the fifth Fault from the commencement of the 
Section in the W. is a downthrow to the W., and not to the 
E. as marked. On sheet No. 49 in Section No. 2, the 
Permian rocks shown about the middle of the Section near 
“ Norris Hill ” have not been coloured as such. 
(c) With regard to the Vertical Sections. —Taking sheet 
No. 20 (Leicestershire Coal-field, Moira district). 
No. 2 Section. —The water referred to as being large in 
quantity in certain of the strata does not naturally exist in 
the measures, but proceeds (or rather when the shafts of this 
colliery were sunk, proceeded) from old drowned-out main- 
coal workings situated to the S. or rise side of the “ Oakthorpe 
New Colliery.” 
