Calculations – Thomas Marshall – 1 Jan 1763

Document Type: Calculations
Date: 1 Jan 1763
Correspondent: Thomas Marshall
Archive Source: DUL CCB B 182 121
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An Answer to two Accounts delivered at the same time to the Lord Bishop of Durham by Sir Walter Blackett Baronet, One of them said to be of all the Ore gotten in Weardale under the two Leases, the Latter has from the former, between 1st. Day of Janry 1749 and the 1st. Day of Janry 1762, being twelve Years; Together with the Cost of the said Ore; Dated the 28th. day of March last past & Signed by Mr. Peareth & Mr. Walton And the Other intitled in Substance much the Same and making the Yearly Profit by the said Ore to be Six hundred sixty & two Pounds a Year.

The said Lord Bishop, to prevent all further Altercation, agrees that the said Sir Walter Blackett’s Accounts of the Quantity of the Lead Ore Gotten and the Cost thereof shall, in the present Case, determine what the yearly profit of the Leadmines granted by those Leases is; But insists that, as Sir Walter has proposed that Method for the ascertaining of such Profit, he (the said Lord Bishop) is intitled to have those Accounts themselves inspected by a Person or Persons of his own appointing, and that he ought not to be concluded by Extracts (from those Accounts) only. Which are not fair upon the Face of them, and which the Persons Signing seem to have been persuaded to believe the Truth of this Misrepresentation. 

The year 1762 ought to be in <…> the calculation 

[last line illegible]
Possibly incomplete document as the foot of the single sheet is obscured. Ascribed here to Thomas Marshall, who undertook calculations for Halhead and the Bishop. Date of 1st Jan 1763 used here

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The Dukesfield Smelters and Carriers Project aimed to celebrate and discover the heritage of the Dukesfield Arches & lead carriers' routes between Blaydon and the lead mines of Allendale and Weardale. A two year community project, it was led by the Friends of the North Pennines in partnership with Hexhamshire and Slaley Parish Councils and the active support of Allendale Estates. It was funded by the Heritage Lottery Fund and the generous support of other sponsors. Friends of the North Pennines: Charity No:1137467