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[To Henry Masterman] re farming matters, Walbottle Brewery, coal prices, and the London coal market.

From Henry Masterman, Little London, re claims made by the Earl of Northumberland and the dishonesty of Mr Barkas.

Agreement re the grant of a wayleave

From Leonard Hartley Esq, Middleton Tyas, re setting up an engine for the lead mine in Swaledale, "Wednesday Night".

1755-01-01 — 1755-12-31

To Leonard Hartley Edq, Middleton Tyas, re supply of engine parts and affairs at Throckley.

To Leonard Hartley re the increased efficiency of a pumping engine over hand pumps, his opinion of Wallsend Colliery and his interest in acquiring from the Dean and Chapter the colliery east of Gateshead Fell [Jarrow].

Pages missing

Plan and section of workings in the Weardale Coldberry Mine

1822-01-01 — 1822-12-31

Depths pits at West Sleekburn Colliery

1730-02-16 — 1731-02-16

To Henry Masterman, London, describing progress at his colliery [Throckley].

To Mr C[uthbert]Swainston recommending Mr Edward Smith of Collier Row, Houghton-le-Spring as a viewer and re the dispute between Mr Smith and Miss Lee, 27 Feb 1765.

Account of borings on Hedley Fell

1685-05-01 — 1727-09-05