Monochromes
These are portraits in one color on porcelain, glass or any hard
material that has first been coated with gelatin and then photographed
on. First treat the whole surface with pumice stone as directed for the
bromide paper, afterwards go over it with the crayon and cotton. Then
put in the cloud effect in the background, and clean off the lights in
the face, hair, and clothes with the eraser; next put in the
half-shadows
with the peerless stump; then with a solution of India ink
darken the stronger shadows throughout the portrait--in the eyes, nose,
mouth and eyebrows, and finally in the hair. Finish the face with the
No. 0 crayon and the 4 H. Faber's lead pencil according to directions
given for finishing bromide enlargements. The Faber pencil is used
almost exclusively throughout the face. Very nice effects of strong
light can be made on porcelain by scraping through the gelatin surface
with the knife. This process is specially adapted to making pictures of
smaller size, say 10x12, or 11x14 inches, as it produces a very soft
and delicate effect.