7 
The Chairman said, he had now the pleasure to propose 
the commencement of the real business of the meeting, by 
calling upon the Rev. William Thorp to read his paper, on a 
subject which was in some measure discussed at the last 
meeting, in consequence of an invitation from the Manchester 
Geological Society to join them in executing a Section 
which should contain a list of the rocks and minerals from 
the river Mersey to the German Ocean, — each Society to 
undertake one half of the work. 
ON THE PROPOSED LINE OF SECTION BETWEEN THE COAL 
FIELD OF YORKSHIRE AND THAT OF LANCASHIRE. 
BY THE REV. WM. THORP, of Womeesley. 
Not being able to be present at the discussion at Leeds 
concerning the proposed section between this Coal Field and 
that of Lancashire, and as Mr. James Heywood informs me 
that a committee was appointed at the last meeting at Man- 
chester to determine the best line, and also the proper 
scale upon which the section may be projected, I hope it 
may not be too late to offer a few observations upon the 
subject. 
In the first place then, in order to form a correct section 
of the minerals and strata of a country, it is absolutely 
necessary that it be made at right angles to the range or 
line of strike" of the different beds. But the line of 
strike" is determined by the course in which the major axis, 
upon which any country is elevated, may run ; and it is 
therefore necessary in the first place, that the direction of the 
axis be well ascertained round the margins of those Coal 
Fields, and accurately laid down on a map. Now, it is well 
known that the elevation of the Lancashire and Yorkshire 
Coal Fields is due to forces which have operated over a very 
extensive region, extending from the Tyne, in Northumber- 
land, to the Peak of Derby ; the effects of which forces are 
