AND NEIGHBOURHOOD. 205 



Probably the deposits mentioned above will not 

 always be found in the perfect order there laid 

 down ; no doubt some of them may be wanting, 

 at places ; especially Nos. 4 and 2, which have 

 often been removed ; but whatever objections are 

 made to it, this must be taken as the first attempt to 

 describe the Drift Deposits of the neighbourhood. 

 It will afford facilities for describing the relative 

 permeability by water of the upper deposits in 

 the neighbourhood of Manchester. The different 

 townships will now be described : — 



MANCHESTER. 



( SEE MAP. ) 



The site on which this township stands is nearly 

 all strong brick-clay (No. 3,) quite impervious to 

 water ; varying, generally, in thickness, according 

 to the height of the town above the level of the 

 river Irwell. Along the banks of the Medlock, 

 from near Mr. Barlow's dye-works, below Every- 

 street, to near Ardwick Bridge, there is a small 

 portion of upper new red sandstone and gravel 

 (No. 1). From above Scotland Bridge, on the Irk, 

 in a line running a little south of Long Millgate and 

 Todd-street, above Corporation-street, and part 

 of Cross-street, to below the town-hall in Kino-- 



