Paper tinged with vegetable colors must be kept perfectly dry
and in darkness.

To secure an eveness of tint on paper it should be first moistened on
the back by sponging, and blotting off with bibulous paper. It should then
be pinned on a board, the moist side downwards, so that two of its edges--
the right and lower ones--project a little over those of the board.
Incline the board twenty or thirty degrees to the horizon,
and apply the tincture with a brush in strokes from right to left,
taking care not to go over the edges which rests on the board,
but to pass clearly over those that project; and also observing
to carry the tint from below upwards by quick sweeping strokes,
leaving no dry spaces between them. Cross these with other strokes
from above downwards, leaving no floating liquid on the paper.
Dry as quickly as possible, avoiding, however, such heat as may
injure the tint



CHAP. IV.

A FEW HINTS AND SUGGESTIONS TO DAGUERREOTYPISTS.


There are very few who may not be capable of practising the Photographic art,
either on paper, or metalic plates--but, like all other professions,
some are more clever in its various processes than others.

Impatience is a great drawback to perfect success,
and combined with laziness is a decided enemy. Besides this,