Letter – Nicholas Walton to Peter Mulcaster – 27 Sep 1774

Mr Mulcaster.                                          	Farnacres 27th Septemr 1774



       Inclosed you have a Paper showing the Weights of Assays of Litharge Lead from Silver Tests from which it appears that after No 5 all is Refineable; but in all future savings we would not begin sooner than after No 6 and we think we shall then be sure of having nothing but what is clearly Refineable.    You are destined to make another Assay of No 3.  From the above you will observe that the No of last Operation 6 is to be kept for Refining but in all future operations No 6 is to be thrown amongst the Unrefineable Litharge.

       If the Smelters apply, we shall give them an Answer but cannot give any encouragement for an advance.

       We are Your hble Servts

      Walton & Smeaton 





Assays made from Litharge saved from Silver Tests each Assay from 1/2 a Pound of Lead.



[There follows a table not reproduced here but available in the corresponding copy of the letter contained in the PDF file of this collection.]





Mr Mulcaster                                		Farnacres 27th Septem 1774



       We fully intended to have mentioned in our Letter of this day wherein the Assays of Litharge Lead are taken notice of, that it will be proper in all future operations to save the Litharge Slags by themselves which belong to the Litharge which is kept for Refining and to run them wth Test Bottoms and Black Slag which is supposed the richest in Silver & then we shall be sure of the Lead produced in that way to be refineable

       We are Yr etc

       W &S