107
ENGLAND
3 . GLACIATION OF DURHAM AND PART OFNORTHUMBERLAND
References
H. Miller, On Tynedale Escarpments. Natural HistoryTransactions of Northumberland, Durham , and Neiccastle-on-Tyne , vii. 1880.
For direction of glaciation, v. Thompson ; York MeetingBritish Association.
R. Howse and J. W. Iviekby, Synopsis of the Geologyof Durham and Part of Northumberland . Tyneside Natu-ralists’ Club, 1863,
Striae occur at Ryhope Snook. Good exposures ofdrift occur at Hendon, and at Blue House, south of Sun derland ; Sections of drift are at the mouth of the Tyne ,on the north side, east of Bar Light (10 minutes’ walkfrom Tynemouth Station).
N. Wood and E. F. Boyd, On a ‘Wash’ or ‘Drift*through a Portion of the Coalfield of Durham. North ofEngland Institute of Alining Engineers. Yol. xiii. 1863-4,p. 69.
Contains a map of the course of the so-called ‘ Wash ’from Newcastle to Durham . It is a mass of gravel fillingan old river valley, sometimes, as at Durham , kame-like incontour. It follows and connects the valleys of the Teamand the Wear, and many vertical sections of this drift-filledancient valley are given. The paper speaks of the difficultyof accounting for the peculiar passage of the river throughthe solid rock at the city of Durham , instead of goingdirectly along the valley filled with the ‘ Wash .’ The large