3 
gradually into the upper sandstone. Both rocks dip to the 
W.S.W. at an angle of 8°. The marls here found are of a 
dark red colour, variegated by streaks and patches of green 
and yellow. They effervesce feebly with acids. No clearly 
recognized organic remains have been found in them — a 
circular concretion something resembling the cast of an 
ammonite was found in Chepstow Street.” Since this no- 
tice was written, about 35 years ago, nothing has appeared 
respecting these marls. During the past summer he had 
noticed some shafts being sunk on the site of the intended 
new railway station of the Cheshire Lines in Back New- 
berry and Bedford streets. In the first named locality the 
following section was met with : — 
Till or Brick Clay 15ft. 
Red and Variegated Marl 27 
42 
In the last named 
Till 15ft. 
Red Marl 41 
56 
The red marls in their lower portions gradually became 
arenaceous and finally passed into the underlying red sand 
stone. In the pebble beds strata of red marls of one to two 
feet in thickness are sometimes met with, but nothing like a 
deposit of 40 feet. As the line of the Great Irwell fault of 
above 3,000 feet in throw runs a little to the south of the dis- 
trict where the marls are met with it is probable that these are 
a lower portion of the Bed Marls of Cheshire lying above the 
Bunter beds of the Trias. He brought the matter before 
the Society for the purpose of directing the attention of the 
members to any excavations they might observe, as it was 
desirable that no facts concerning the rocks under our city 
should escape notice, and as so few opportunities occur 
for observing this deposit of marls no opportunity for ex- 
amining them should be lost. 
