ects can be imitated with such
coloured materials as are of the Three Primitive Colours, but only in
the same degree of comparison as white bears to light.

'Sixthly--There are no other materials, in which colour is found, that
are possessed of any of the foregoing perfections.

YELLOW.
Yellow and Red make Orange,
ORANGE.
Orange and Green make Olive,
OLIVE.

RED.
Yellow and Blue make Green,
GREEN.
Orange and Purple make Brown,
BROWN.

BLUE.
Red and Blue make Purple,
PURPLE.
Green and Purple make Slate,
SLATE.

'These nine colours are all that are distinguished by integral names.

'Thus it will be seen, that Yellow, Red, and Blue produce--first,
Orange, Green, and Purple; and these produce Olive, Brown, and Slate,
making nine.

'Yellow, Red, and Blue, make Black.

'And this is the compendium and whole of the system of the degradation
of colours into Black, or perfect darkness.

'WARM EFFECT is produced by
'White, Yellow, Orange, Red, Purple, Indigo, Black.
'COLD EFFECT is produced by
'Black, Indigo, Blue, Green, Yellow, Pale Yellow, White.'

* * * * *

The Three Primitive Colours, by the _endless_ varieties of their
solvents, regulate, more or less, the whole economy of a picture; and
the abundant stores of nature are faithfully imitated by their agency.
Thus, the Primitives being red, blue, and yellow, the colours produced
by their combination are purple, orange, and green; these, in their
turn, may be extended to every tint that exists. The junction of the
Three Primitives absorb _all_, and form neutral tint, which, by the
addition of quantity, produces black.

All the contrasts are rendered from the same.

And here it may not be out of place to remark how men will devote
themselves to many idle pursuits that return them nothing, while a
little study of the noble theory of colour would enable them, without
pushing the matter far, to bring to their firesides reminiscences of
their travels, or, otherwise, spots endeared by circumstances, together
with a thousand other agreeable associations. They would learn in time
to look at nature through the medium of art, and find a del