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Black For Of Such Subdued Tones Are Those Greens By Which The More

vivid tints of nature are opposed. Accordingly, the various greens of
foliage are always more or less semi-neutral in hue. As green is the
most general colour of vegetal nature and principal in foliage; so red,
its harmonizing colour, with compounds of red, is most general and
principal in flowers. Purple flowers are commonly contrasted with
centres or variegations of bright yellow, as blue flowers are with like
relievings of orange; and there is a prevailing hue, or character, in
the green colour of the foliage of almost every plant, by which it is
harmonized with the colours of its flowers.

The chief discord of green is blue; and when they approximate or
accompany each other, they require to be resolved by the opposition of
warm colours. It is in this way that the warmth of distance and the
horizon reconciles the azure of the sky with the greenness of a
landscape. Its less powerful discord is yellow, which needs to be
similarly resolved by a purple-red, or its principles. In tone, green is
cool or warm, sedate or gay, either as it inclines to blue or to yellow;
yet in its general effects it is cool, calm, temperate, and refreshing.
Having little power in reflecting light, it is a retiring colour, and
readily subdued by distance: for the same reason, it excites the retina
less than most colours, and is cool and grateful to the eye. As a colour
individually, green is eminently beautiful and agreeable, but it is more
particularly so when contrasted by its compensating colour, red, as it
often is in nature, even in the green leaves and young shoots of plants
and trees. "The autumn only is called the painter's season," remarks
Constable, "from the great richness of the colours of the dead and
decaying foliage, and the peculiar tone and beauty of the skies; but the
spring has, perhaps, more than an equal claim to his notice and
admiration, and from causes not wholly dissimilar,--the great variety of
tints and colours of the living foliage, accompanied by their flowers
and blossoms. The beautiful and tender hues of the young leaves and
buds are rendered more lovely by being contrasted, as they now are, with
the sober russet browns of the stems from which they shoot, and which
still show the drear remains of the season that is past."

The number of pigments of any colour is in general proportioned to its
importance; hence the variety of greens is very great, though the
classes of those in common use are not very numerous. Of the three
secondaries, green is the colour most often met with, and, consequently,
the most often compounded: for this last reason, perhaps, the palette is
somewhat deficient in really good original greens--more deficient than
there is any necessity for.


By numerous methods both wet and dry, oxides of chromium are obtainable
pale and deep, bright and subdued, warm and cool, opaque and
transparent: sometimes hydrated, in which case they cannot be employed
in enamelling; and sometimes anhydrous, when they are admissible
therein. But whatever their properties may be, chemical, physical, or
artistic, they are all strictly stable. Neither giving nor receiving
injury by admixture, equally unaffected by foul gas and exposure to
light, air, or damp, these oxides are perfectly unexceptionable in every
respect. For the most part they are eligible in water and oil, drying
well in the latter vehicle, and requiring in the former much gum. They
have long been known as affording pure, natural, and durable tints; but,
until within the last few years, have been rather fine than brilliant
greens. Lately, however, processes have been devised, yielding them
almost as bright, rich, and transparent, as the carmine of cochineal


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