OF THE NORTH-WEST OF ENGLAND. 269 



Pendleton and Patricroft, all appear to be not only of the 

 same age as the Craven fault, but to be fully as great in their 

 displacement of the strata. 



In further support of my opinion that the limestones of 

 Collyhurst, Stank, and Barrow Mouth are of the same rela- 

 tive age, although differing so much in appearance and 

 chemical composition, I may state, that in the drift deposits 

 of South Lancashire, the first named only has been found by 

 me ; whilst in the drift of North Lancashire and Morecambe 

 Bay the last two only occur ; thus shewing that they are not 

 met with together, which we should most probably expect to 

 be the case if they were distinct deposits. 



Addendum. 



During the passage of the above paper through the press, 

 Mr. Kenworthy's section, described at page 236, has been 

 carried down through the red marls and limestones into the 

 lower new red sandstone. The following beds, therefore, 

 must be added to those previously given, viz. : — 



ft. in. 



Limestone rock, hard and gritty 4 6 



Blue earth, or metal 3 l| 



Limestone band 6 



Red earth*, very sandy 4 5 



Limestone rock, hard 9 



Red earth 1 



Limestone band, very hard 2^ 



Red earth, sandy and very hard 1 6| 



Brownish red rock, hard and full of water, penetrated ... 18 9 



33 9^ 



Probably one of the beds of sandy red earth will be the 

 conglomerate. In the above section 54 beds of limestone 

 are enumerated. 



