C 167 ] 



ing you copy; and, with blunter pointed needles, 

 give more ftrength to your flrokes, as the dark- 

 nefs of the lliadows increafes ; and by a little 

 praélice, obfervation and care, a piece may be 

 finiflied this way, without the help of engraving 

 after the common method. 



1 have found by experience, that fome labour 

 lîiay be faved in etching, by a fort of artifice, 

 which has an effedl beyond any thing that can 

 be performed with the needle ; that is, in cafe 

 you have a dark obje6fc, on which you would 

 reprefent many fmall white, or light fpots, firfl: 

 etch fuch objeét with clofe crofs hatches, fo 

 thick that it would print almoil black ; then 

 take a fine hair pencil, dipped in common tur- 

 pentine varnifh and a little lamp-black, and 

 touch with the pencil what fhaped or fized 

 fpots you would exprefs on the abovefaid dark 

 ftrong hatching, and it will dry on, and prevent 

 the u4iua fortis from taking effe6t, or eating in 

 thofe places ; and fo they will print white. The 

 fame fort of varnifh, with a little lamp-black, 

 is a good ftopper, in places where the varnifh is 

 accidentally rubbed off, or where any fmall error 



or 



