430 REMARKS ON THE COAL DISTRICT 
that the red sandstone rocks of the same locality 
dip to the East, with a slight inclination towards the 
South, while the carboniferous gritstone, against 
which the Magnesian limestone there rests, dips 
rapidly to the South-West; hence the carboni- 
ferous grit rocks of Bedford are manifestly uncon- 
formable, both to the red sandstone, and to the 
Magnesian limestone of that portion of the South 
Lancashire coal district. 
Several parallel faults occur in the coal dis- 
trict, on the Northern and North-Western side 
of Manchester, which have a North- Westerly 
direction, parallel to the great red rock fault of 
the valley of the Irwell, and which give an 
appearance of great regularity to the divisions 
of this portion of the coal district. 
Two of these parallel faults were noticed by 
a scientific agent, surveying for the author, on the 
banks of the river Irwell, at Brandlesholme, 
North of Bury, in South Lancashire. The first 
of the two faults was observed to separate 
the strata of the dark ferruginous shale of that - 
neighbourhood, from the carboniferous sandstone, 
and to change the inclination of the strata adjacent 
to it on both sides. Above the fault, the inclina- 
