To every 10 galls of oil take 1 # copps,and 1# dried sugar lead.,The heat is got up to 500 o. when the copps ,is put in - the heat is then suffered gradually,to go down till it is 350 when the sug ld,is put in & the heat then got gradually down,not suddenly or it is apt to,take fire - ,The copps is finely powd. & sprinkled in, the,assistant stirring all the while,The sugar lead is put in by small quantities,at a time into a ladle and then the ladle,immersed in the hot oil so that that the oil,flows into the ladle - and decomposes the,sugar lead before it is dipped into the remder,of the oil - and so on till all is in, it is,then to be well stirred,The oil has a pale appce with a tinge,of brown - a good deal of foots deposits,in a flocky state which further subsides,by keeping into a more compact state,The oil dries well next day, and it,agrees well with varnishes,It has been used at this period (viz ,Dec 1851) to mix off the varnishes that,wanted lustre & went .eckley, it,remedies this well and the varnish,dries very well with as much as,1 quart to the gall but leaves a strong,touch next day - 1 Pint to the Gallon],will bring round a moderately ripened ,varnish and dries next day with very,little tack.,Was used under the name of Mx,Half a pint to a gall of cist K gave,great lustre with just a softness next day,