212 MR. E. W. BINNEY ON THE PERMIAN BEDS 



The trias beds of Lancashire and Cheshire may be classed, 

 in the descending order, as follow, namely : — 



1. Upper red marls, comprising according to Mr. Ormerod* — 



Thickness, ft. 



a Red and variegated marls ...unascertained 



b Gypseous and saliferous marls 800 



c Waterstones 440 



2. Bunter sandstein (upper new red) 900 



2140 



The Lancashire coal field is divided as follows, viz : — 



feet, 



Upper fields commencing, so far as yet known, with the red 

 clays of Ardwick, and terminating with the Bradford 

 and Pendleton four-feet mine 1,600 



Middle field, commencing with the floor of the Pendleton 

 four feet, and terminating with the floor of the Riley 

 or Arley mine 2,910 



Lower field, commencing with the floor of the Arley mine, 



and terminating with the lowest millstone giit 2,130 



6,640 



My examination of the country, from Leek in Staffordshire 

 to Whitehaven in Cumberland, over a distance of near 120 

 miles, during several years, has only enabled me to collect 

 the bare and incomplete information given in the following 

 sections : — 



Without further remarks I shall now describe these sec- 

 tions, beginning with — 



* Report of the Council of the Manchester Geological Society, for 1842-3. 



