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P. 201
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FILLING BY CLASSES AND MODIFICATIONS. 197
duced. The gold, prepared in the manner already de-
scribed, is taken up with a serrate-pointed plugger or
plugging pliers, introduced into the retaining point or
points, and there fixed; it is then built across from one
to the other, and over the floor of the cavity, till this
is completely covered, and then up from the bottom to
the orifice. When a portion of gold is taken on the
point of the instrument, the precise spot at which to
deposit it should be selected, and there it should be
placed, and, by the first pressure of the instrument,
fixed immovably; a few subsequent strokes of the
instrument close about the first point of attachment,
will be required. These strokes should be close,
because if the instrument is lifted up and pressed
upon the piece at a distance from the first point
of contact, the attachment is liable to be broken.
The character of the gold, and the condition of the
receiving surface will govern to some extent the pre-
cise method of manipulation. Very much depends
upon keeping the surface in a good condition for the
reception of the gold to be added. The best receiving
surface is obtained by having the condensing instru-
ment sharp and in good condition, and then in using
it, let there be a little space between its impressions
the surface not stamped completely over by the con-
densing instrument. In constructing the filling, we
consider it preferable to keep it built up a little higher
FILLING BY CLASSES AND MODIFICATIONS. 197
duced. The gold, prepared in the manner already de-
scribed, is taken up with a serrate-pointed plugger or
plugging pliers, introduced into the retaining point or
points, and there fixed; it is then built across from one
to the other, and over the floor of the cavity, till this
is completely covered, and then up from the bottom to
the orifice. When a portion of gold is taken on the
point of the instrument, the precise spot at which to
deposit it should be selected, and there it should be
placed, and, by the first pressure of the instrument,
fixed immovably; a few subsequent strokes of the
instrument close about the first point of attachment,
will be required. These strokes should be close,
because if the instrument is lifted up and pressed
upon the piece at a distance from the first point
of contact, the attachment is liable to be broken.
The character of the gold, and the condition of the
receiving surface will govern to some extent the pre-
cise method of manipulation. Very much depends
upon keeping the surface in a good condition for the
reception of the gold to be added. The best receiving
surface is obtained by having the condensing instru-
ment sharp and in good condition, and then in using
it, let there be a little space between its impressions
the surface not stamped completely over by the con-
densing instrument. In constructing the filling, we
consider it preferable to keep it built up a little higher
