Soiled pages may be cleaned in the following ways:
With art gum, rub gently and slowly, holding the page flat with the
left hand to prevent tearing.
With powdered pumice stone, rub on with a clean cloth. With damp
cloth, be careful that cloth is not too wet.
Rub always from inner margin of the page outward, to prevent
crumpling.
Brush off carefully all particles of rubber, or pumice stone,
allowing none to remain in the folds between the leaves.
Mud stains may be removed by using a soft brush or sponge, with a
preparation of the following proportions: One cup water, one teaspoon
ammonia, four drops carbolic acid. Avoid too much rubbing or print will
blur. Slip the pressing tin under the page, and after washing, place
white blotting paper on each side of the leaf.
Ink stains may be removed by one of the standard ink eradicators to be
obtained of local stationer or druggist.
Edges of the leaves may be cleaned by sandpapering, holding the leaves
of the book very firmly together, or putting book into press.