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Mr Mulcaster. Farnacres 25th January 1771 I reced. your Letters of the 1st & 5th instant & think the Governor and Companys Agents have behaved very civily upon our late application; I also think you have acted prudently in taking Joseph Wilkinson, and hope you will find him worthy of being continued. The last Cake of Silver Weighed 473 3/4 Ounces and was a very pretty clean looking piece as I have seen. By one of the Assays it shd have been 446 oz 17 Dwt 14 4/10 gr, by the other 466 9 14 4/10 so it exceeds the highest calculation about 7.5 and from its appearance it was certainly quite fine. Mr Nicholson says he was mistaken and that there are 53 Casks of Bone Ashes now in the Warehouse at Newcastle ready to be sent when the Lead Carriage begins if you can with real convenience wait so long for them. I ordered you a Pot for the Refiners to be cast rather Stronger than common and hope you will receive it soon if it is not already arrived. It is of the size you mention. Great care must be taken in the Annealing it. I shall be glad to hear the alteration of the Bellows answers the end proposed. I am for Ptner & Self Your Hble Servt N Walton Junr PS. I hear some Lead has lately arrived with no mark whatever upon it.
annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable