Stereotyping has been superseded by the process of electrotyping, as
described below.
The pages, after being delicately polished with plumbago, are laid in a
press; a pan of prepared wax, warmed, is placed over them and pressed
down into the counter of the types. The wax mould is then dusted with
plumbago, and suspended in the electric bath. On this, in a few hours,
is deposited a thin shell of copper, which, after being coated with tin
solder, is backed up with metal to the usual thickness of a stereotype
plate.
The same care in preparing the pages for electrotyping must be observed
as for stereotyping. For stereotyping, high slugs are placed only at
the top and foot of the page; but, for electrotyping, they must be set
around on all sides, and the bevelled flange must be afterward made by
side-planing.