OF THE NORTH-WEST OF ENGLAND. 225 



The south-west part of Manchester and the greater part 

 of the adjoining borough of Salford, are built on upper new 

 red sandstone, like the districts of Chorlton-on-Medlock and 

 Ardwick previously described. To the south of both towns 

 I am not aware of the rock having been perforated, although 

 borings have been made in it to the depth of 600 feet. At 

 Mr. Joules' brewery, near the Albert Bridge, a bore hole 

 was made on the Salford side of the Irwell, and the following 

 strata were met with, viz. : — 



• K feet. 



Upper new i-ed sandstone, about 470 



Red clays, with limestones 120 



Red rock and clay in alternate beds 10 



Hard sandstone rock 000 



600* 



The upper new red sandstone may be perforated at a much 

 less depth as you proceed to the northward, as was proved at 

 Messrs. Lomas and Bradbury's, in Strangeways, where the 

 following section was met with, viz. : — 



ft. in. 



Drift deposits 21 



Upper new red sandstone 273 



Dark raddle 30 



Limestone 1 



Raddle 12 



Limestone 1 4 



Raddle, containing magnesia 30 



Light gritstone 2 6 



Light raddle 24 



Light stone 1 



Light raddle 18 



Dark gritstone 3 6 



407 10 



On proceeding to examine the Collyhurst section more in 

 detail, we shall find the upper new red sandstone more or less 



* For this section I am indebted to my friend J. P. Joule, Esq., F.R.S. 

 2 F 



