■o 60 
of “ throw,” or displacement, probably decreases northwards, 
and becomes of comparatively small amount east of Brin- 
nington. 
How far Mr. Binney’s strictures upon the character of the 
work executed by myself or my colleagues of the Geological 
Survey are deserved, I am quite willing to leave to the 
judgment of the public, but I cannot admit that he has 
shown any grounds for stating that there has been any 
want of care in the work. — I remain yours, &c. 
Edward Hull. 
The Chairman said he had a great respect for the opinion 
of Mr. Green, but neither he nor Mr. Hull, had produced 
any evidence of a “red rock fault” between Stockport and 
Macclesfield. The evidence afforded by the sections at Beat 
Bank Bridge, Brinnington, Fogbrook and Norbury, shewed 
that Permian or Triassic strata covered up previously elevated 
coal measures, but there were no signs of a fracture in the 
last named strata. Twenty years ago he had shewn this 
in memoirs published in the quarterly journal of the Geo- 
logical Society of London, and in the transactions of this 
Society. The natural sections are there to speak for them- 
selves and any one who felt an interest could go and judge 
for himself. Messrs. Hull and Green had impugned his 
published views, and he in return had denied the correctness 
of their map and sections so far as the “ red rock fault ” 
was concerned. Of course if is well known to all persons con- 
versant with the subject that the numerous faults which 
intersect the coal measures extend equally, when those 
strata disappear under Permian and Triassic beds, and that 
the latter frequently lie in great dislocations of the former, 
but these are very different things from the straight north 
and south “ red rock fault ” laid down on the Survey Map 
between Macclesfield and Stockport. 
He did not wish to follow Mr. Green further south than 
Macclesfield, but he strongly suspected that Triassic strata 
