394 GLACIAL GEOLOGY OF GREAT BRITAIN
It must also be added that the choice of extracts has simplybeen determined by their relevancy to the subjects under discus-sion. and not by any principle involving my personal opinions,and that I leave them to speak for themselves without theintrusion of any expressions either of assent or dissent.
H. W. C.
I
THE EXISTENCE OF LAND-ICE IN EAST LANCASHIRE AND CHESHIRE—INFRA-DRIFT SURFACES
(Rejecting the theory that a submergence of considerableextent both in depth and area took place during the glacialepoch, Prof. Lewis was always searching for traces of the actionof land-ice within the regions bounded by his great terminalmoraine. According to his non-submergence theory, the infra-drift surfaces ought to yield signs of the passage of the ice, andglaciated blocks of local rocks ought to be found intermingled withforeign erratics in the various deposits accumulated by themoving glacier. He regarded East Lancashire and Cheshire asa district in which his theory could with special distinctness bebrought to the test of facts, since, according to his views, a greatglacier must have filled the Irish Channel and pressed down overthe plains from the north-west tewards the south-east.
As I have already remarked in the introduction to this volume,since Prof. Lewis’ death some very notable sections have beenexposed, to which he would certainly have appealed as givingevidence in his favour on these important points. Indeed, I thinkhe would at once have crossed the Atlantic to examine them.
Mr. Kendall has paid great attention to these sections, andhis general interpretation of them is, I believe, very much inaccord with that which Prof. Lewis himself would have given;I therefore extract a full account of them from Mr. Kendall’s MSS.
H. W. C.)