Burn, Robert Scott · London : Ingram, Cooke, and Co. · leaf 147
ough the plate can be stopped up withvarnish, and when dry the acid can be again applied. It is, perhaps, wellto mention that the common Brunswick black, used for blacking chimney-ornaments, is a very good varnish for stopping-out. This varnish maybe had at any oilshop; but a very superior… … acid as if covered by the etching ground • but it is not so proper for thepurpose of etching, as it cannot be so neatly removed by the point. Caremust be taken in all cases not to put the acid on the plate until the var-nish is dry. If this is not attended to, the varnish, instead of protectingthe…
Drawing · Wood-engraving
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