The Levenshulme Limestones. 345 



Bar, is about 150 yards (450 feet). From the last-named 

 place to the Openshaw Coal, the highest Mine that has been 

 worked in the district, must be near 100 yards. The 

 Bradford and Clayton Mines next succeed here, and seven 

 seams have been worked." 



Mr. Binney then goes on to describe the so-called 

 boundary fault of the Coalfield, bringing in the New Red 

 Sandstone, and adduces evidence to show that the latter 

 abuts against an old short line of the former, and is not 

 a fault in the geological acceptance of the term. It is 

 of interest to note that the Permians at Levenshulme lie 

 naturally on the Coal Measures, in the manner suggested 

 by Mr. Binney, east of Manchester. 



Mr. Edward (now Dr.) Hull, F.R.S., in 1864, gave a 

 detailed description of the Manchester Upper Coal Measures, 

 in the Geological Survey Memoir, "On the country around 

 Oldham." He states, "In no other part of Britain have 

 calcareous beds been so strongly developed in the upper part 

 of the Carboniferous rocks. In most other districts where 

 they are represented, a single band of limestone, a few inches 

 in thickness, is all that occurs. Here, however, there are at 

 least six beds, with an aggregate thickness of about 15 feet 

 of limestone ; but it is to be recollected that this is not the 

 entire amount that has been formed, for as the Coal 

 Measures dip unconformably under the Permian Sandstone, 

 it is highly probable that still higher band's of limestone lie 

 concealed under the Triassic and Permian rocks of Man- 

 chester." 



Professor Hull describes the Ardwick Limestones as 

 " grey, white, or reddish," as " unevenly bedded, and having 

 often the appearance of breccia cemented by carbonate of 

 lime," all of which are familiar characteristics of the Lime- 

 stones that have passed under your review from Levens- 

 hulme, where his forecast as to higher beds being discovered 

 has been amply verified. 



