C 162 j 



to the bottom ; then pour it off into a bafoft df 

 water, leaving the dregs in the pipkin. When 

 it is a littie cooled in the water, take it out, and 

 roll it into a long form, of the thicknefs of your 

 thumb 5 and while it is yet warm, cut it into 

 pieces of two inches long, more or lefs. 



You may make double the quantity of the 

 receipt, but cannot well make lefs. I have 

 found that my Ground, by long keeping, has 

 grown too hard and dry, which I have redified 

 by melting it down again, and adding a Iktk 

 common pitch. 



^0 lay the Ground on your Plate* 



Take your copper-plate, and clear the fur- 

 face of it well from all tarnifli or dirtinefs ; then 

 having fome charcoal lighted, in an earthen pan, 

 or chafing dilh, fix a fmall hand-vice to the edge 

 of ycur plate, and you may then hold the back- 

 fide of it downwards to the charcoal fire, that 

 the poiifhed fide may lie upwards to receive the 

 Ground or Varnifh. When your plate is of a 

 due heat, have a piece of your Ground tied up 



in 



