hen evenly
paste the back of the map with thin paste in which there are no lumps,
and lay it on the linen, rub down through blotting-paper, and leave to
dry. Unless the pasting is done evenly the marks of the paste-brush
will show through the linen. If a folded map is printed on very thick
paper each fold must be cut up, and the separate pieces mounted on the
linen, with a slight space between them to form a flexible joint.

[Illustration: FIG. 15.]

A folded map must have in the back of the book sufficient guards to
equal it in thickness at its thickest part when folded, or the book
will not shut properly (see fig. 15).

PARING PAPER

For paring the edge of paper for mending or guarding, take a very
sharp knife, and holding the blade at right angles to the
covering-board, draw the edge once or twice along it from left to
right. This should turn up enough of the edge to form a "burr," which
causes the knife to cut while being held almost flat on the paper. The
plate or paper should be laid face downwards on the glass with the
edge to be pared away from the workman, the knife held in the right
hand, with the burr downwards. The angle at which to hold the knife
will depend on its shape and on the thickness and character of the
paper to be pared, and can only be learned by practice. If the knife
is in order, and is held at the proper angle, the shaving removed from
a straight edge of paper should come off in a long spiral. If the
knife is not in proper order, the paper may be badly jagged or
creased.

SOAKING OFF INDIA PROOFS

Place a piece of well-sized paper in a pan of warm water, then lay the
mounted India proof, face downwards, upon it and leave it to soak
until the proof floats off. Then carefully take out the old mount, and
the India proof can be readily removed from the water on the under
paper, and dried between sheets of blotting-paper.

MOUNTING VERY THIN PAPER

Very thin paper, such as that of some "India" proofs, may be safely
mounted as follows:--The mount, ready for use, is laid on a pad of
blotting-paper. The thin paper to be mounted is laid face downwards on
a piece of glass and very carefully pasted with thin, white paste. Any
paste on the glass beyond the edges of the paper is carefully wiped
off with a clean cloth. The glass may then be turned over, and the
pasted plate laid on the mount, its exact position be