IV. — Sketch of the Drift Deposits of Man- 

 chester and its Neighbourhood. By E. W. 

 BiNNEY, Esq. 



(ReadJanuary 12, 1847.) 



Introductory Remarks. 



In other communications,* the author has endea- 

 voured to give to the public what information he 

 possessed relative to the older stratified rocks lying 

 under the town of Manchester, as well as the super- 

 ficial deposits which hide such rocks from our view. 

 Both these papers were mere outlines, and were 

 intended to be worked out in detail, when the 

 completion of the Ordnance survey should furnish 

 him with accurate maps and correct levels. Good 

 maps are of the utmost importance to geologists, 

 in all their investigations, but more especially in 

 the examination of the Drift, as the superficial 



* Vol. i. ]). 3.5 of the Transactions of the Manchester 

 Geological Society. 



