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Mr Mulcaster Farnacres 7th November 1772
We would have you make tryal of Reducing the Refinery and Reducing Furnace Fume as soon as you can with convenience, we mean the fine part of it as it was dressed for the Painters and desire you will be particularly attentive to the expenditure of Fuel etc. & Wear & Tear. The Refinery Fume and Reducing Fume must be tryed separate, as according to the produce of each we shall find out their respective Values which we could not do if they are reduced together.
Your Letters of the 4th instant are both reced and the Contents duly noted.
The Bullion we have not yet seen but if it weighs 656 Ounces which we have no doubt of it is good work according to the Assay.
Having now compleated our calculations in consequence of the Tryal made of Middle Cleugh Ore we find it will be better to continue the Washing so you will act accordingly.
From the tryal of roasting Cowhill Ore it does not appear to be attended with advantage sufficient to induce us to continue it. The Assay of the Black Slag Lead shows it to be Refineable but as you say it was not as Assay wch could be depended upon you had best make another at your leisure.
Mr Hilton received John Stonebanks money.
You will hear from us about the Hedging on Monday or Tuesday
We are your hble Servts
N W Junr
JS
