XXIX . — Observations on the Eastern Part of Yorkshire ; 
By N. J. WINCH, Esq. 
HONORARY MEMBER OF THE GEOLOGICAL SOCIETY. 
[Read April 19, 1816.] 
During the course of the year 1814, I had the honour to lay 
before the Society a paper on the geology of Northumberland and 
Durham.* It is now my intention to extend that sketch towards 
the South, taking the Humber and the great north turnpike road 
for the southern and western boundaries of the district to be des- 
cribed, and the German ocean and the river Tees for the western 
and northern ones.f It is here proper to remark, that the former 
are only ideal limits to the formations under consideration ; but the 
latter are real terminations of the rocky strata, a brief account of 
which will constitute the subject of the following observations. 
The length of this district is about 60 miles, and its extreme 
breadth 40 ; and though the mineral treasures it contains will bear 
no comparison in respect to number and value with the productions 
of the country situated to the north and north-west, yet extensive 
quarries of alum-shale, together with freestone, limestone, chalk, 
ironstone, and a few thin seams of coal, add in some degree, to the 
* This was printed in the Transactions, vol. 4. 
+ By referring to Mr. Greenough’s Geological Map of England, most of the places 
mentioned in this Memoir will be found. 
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