O12 MR. A. R, DWERRYHOUSE ON THE GLACIATION OF [ Aug. 1902, 
30. The Graciation of TEESDALE, WEARDALE, and the TyNE VALLEY, 
and ther Triputary Vattrys. By Arraur Ricnarp Dwerry- 
HOUSE, Esq., B.Sc., F.G.S., Assistant-Lecturer in Geology at 
the Yorkshire College, Leeds. (Read January 8th, 1902.) 
[Puatres XXIX & XXX—Maps. ] 
CoNTENTS. 
Page 
VT. Untroduction.. cs siiet cccccaassencciceteccsdec pogenetee eee ee D772 
IT. Meesdale,........2.jecscsesisincieins s65 dap ve neresiere seis s GRRE eR eee 573 
(1) Topography and Structure. 
(2) The Glacial Deposits. 
(3) Glacial Strie, etc. 
(+) Boundaries of the Ice at the Period of Maximum Glaciation. 
(5) Glacial Lakes and Drainage-Channels. 
(6) Phenomena during the Period of Retreat. / 
PTD. Weoardale ©. 0... ci. cecas ect od oinids cou ne de aeces a 's00 See eR EERE eee 589 
(1) Topography and Structure. 
(2) The Glacial Deposits. 
(3) Glacial Strix, ete. 
(4) Boundaries of the Ice at the Period of Maximum Glaciation. 
(5) Glacial Lakes and Drainage-Channels. 
TY. The Valley of tho Tyne... .... 0084. .5..c0 cbc e eae - een eceeeee Ree EEE 594 
(1) Topography and Structure. 
(2) The Glacial Deposits. 
(3) Glacial Striz, ete. 
(4) Boundaries of the Ice at the Period of Maximum Glaciation. 
(5) Glacial Lakes and Drainage-Channels. 
(6) Phenomena during the Period of Retreat. 
¥. General Conclusions... .......0.0...-csese0rsvessos.beelgoeth oe ne 606 
I. InrropvuctTIion. 
My attention was first called to this District by reading the 
admirable paper by Mr. J. G. Goodchild on the distribution of the 
boulders of Shap Granite over the moors in the neighbourhood of 
the Vale of Eden.’ In this paper, Mr. Goodchild describes the 
track taken by the ice which carried the boulders of Shap Granite 
across the Valley of the Eden, and traces these boulders past Brough- 
under-Stainmoor to the summit of the Pennine Escarpment, at the 
head of Lunedale, Balderdale, and Deepdale. Here Mr. Goodchild 
leaves us, but the rocks have been traced by Prof. Lebour and 
other observers, down the lower part of Teesdale and out into 
the North Sea, and also down the Central Valley of Yorkshire as 
far as the city of York. 
In the present communication it is my intention to deal with the 
-distribution of the ice in Upper Teesdale, Weardale, and the Valley of 
the Tyne, and their tributary valleys, and to discuss certain features 
produced during the retreat of the ice. 
1 “Glacial Phenomena of the Eden Valley & the Western Part of the 
Yorkshire-Dale District’ Quart. Journ. Geol. Soc. vol. xxxi (1875) p. 595. 
