A gouge, to be used as a chisel, that is, with a mallet, is used to carve
away all wood round the engraving, so as to leave only the engraving in
relief. This is always necessary when the printing is done direct from the
wood block. It is not necessary when taking hand-proofs. A flat tool or
small chisel is useful for lowering edges which fade into white, for
preparing small plugs and for trimming straight edges.
[Fig. 7]