Note 19 — Chapter VII
S. R. (Sylvester Rosa) Koehler translation
(p. 52.) This is not strictly correct. The “manière de crayon,” as practised by Demarteau and others, differs materially from soft-ground etching. A ground was laid and smoked as usual, and on it the drawing was produced, by a variety of instruments, such as points, some of them multiple, the roulette, the mattoir, etc.