ON COLOURING LANDSCAPE.

67

lienees with which every part of the surface of unhot-
pressed paper is covered, whilst hollows remain of nearly
the same strength as before, a certain air is acquired
which nothing but washing can obtain. After a draw-
ing is washed, the greens will most probably want
strengthening, as they are washed off much sooner than
any of the other tints*. Another process is to rub the
drawing with a clean rag dipped in the fine powder
obtained by grinding the flat surfaces of two pieces of
pumice stone together: with this the drawing is rubbed
all over; and, though it does not produce that softness
which is obtained by washing, it possesses the advantage
of not taking off the greens faster than the other tints.

In order to make the tints more even and solid, and
to give what is called “ texture,” any part of a drawing,
except the sky, may be rubbed with a clean rag, which
is just damp (not wet) laid over the finger ; by this
process a certain grain is given to the tint, which causes it
to look more solid and finished; a depth may be acquired
by a single tint well rubbed, which could not otherwise
be obtained without washing it over a number of times.

I must here warn the student against using a sponge
instead of a brush to wash his drawing with, as it takes
off the colour too rapidly; a sponge ought only to be
used when there is a part of the drawing, which being
incorrect, it is required to efface.

* Drawings made on very rough paper ought never to he washed,
as the colour comes off too readily, and is apt to leave the little
spots of white too large, owing to the size of the eminences being
much larger than on the other paper.