Make a pad of Canton flannel, get a piece of white castile soap, rub
the pad on the soap until it is well covered, then with this soaped
pad rub the surface of each print separately, carefully covering
every part of the surface; keep the pad well soaped by rubbing it on
the soap after every 2 or 3 prints. While this is being done the
burnisher may be heated; when the tool is hot enough to hiss when
touched by a wet finger, proceed to burnish. Do not use much
pressure; too great pressure will degrade the whites of the picture.
When they are all burnished go over them again with a moderately
soft lead pencil, touching up and blending any streaks or spots that
may be found; if any streaks or dirty lines are discovered in the
direction of the draw of the burnisher, they may be removed by light
friction with a piece of Canton flannel moistened with alcohol. This
completes the photograph.