DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.1211#0035
30
mean to represent do not contain the proper quantity of each separate co-
lour; for instance, you may have a yellow flower that contains more than
the portion of yellow you ought to admit into the group, and the question
is, what to do with it, and not destroy the character or beauty of the flower
by leaving part out. Here ingenuity must be called to your aid, for no one
colour should predominate improperly over the others, but all be kept in
their proper force as well as station. When I speak of this proportion of
each colour, I include all the variety* of tints, from the pure to the com-
pound state : for when the proper quantity of light and shade is admitted
into the picture, a very small proportion of the colours will remain in their
pure original state; the greater part will be converted into compound light
and compound shade tints. Besides this effect that light and shade will have
on the general mass, it must be remembered, that every one of the prismatic
divisions contains a gradation from a pure colour to a compound one with the
next. The 45 degrees red contain pure red, also orange red in all its gra-
dations, as do all the other divisions their gradations also; and if this
Spectrum is attentively observed, it will soon be seen koto small a portion of
pure colour there is in each division, that is, in each of the coloured pencils
of a ray of light, though they go by the general titles of yellow, orange, red,
&c. &c. and must be admitted into a picture, by the very same; yet, if those
separate gradations are not nicely copied, and the portion of them all together
regulated by the proportion they bear to one another in the Spectrum, their
effect in a picture will be very different to what it is there. I do not mean
that there should be so many degrees of red, &c. &c. exactly as in the
Spectrum, for it would be impossible to measure out colours that way, but
it-will be easy to observe what proportions they bear to one another, and to
let the colours in a picture have the same : for instance, there are 48 degrees
of yellow to 27 of orange, that is, nearly double the quantity of yellow to
that of orange; therefore there should be the same proportion of them in a
picture, in all the different gradations observable in the Spectrum : and the
greatest nicety, in this, must be observed, for fear of destroying the balance
* Which comprehends an infinite variety of other compound tints, formed by a mixture of the
different prismatic colours with one another, that will take their station in the picture in point of
brilliancy, according to the affinity each bears to that particular pure tint it partakes most of.
mean to represent do not contain the proper quantity of each separate co-
lour; for instance, you may have a yellow flower that contains more than
the portion of yellow you ought to admit into the group, and the question
is, what to do with it, and not destroy the character or beauty of the flower
by leaving part out. Here ingenuity must be called to your aid, for no one
colour should predominate improperly over the others, but all be kept in
their proper force as well as station. When I speak of this proportion of
each colour, I include all the variety* of tints, from the pure to the com-
pound state : for when the proper quantity of light and shade is admitted
into the picture, a very small proportion of the colours will remain in their
pure original state; the greater part will be converted into compound light
and compound shade tints. Besides this effect that light and shade will have
on the general mass, it must be remembered, that every one of the prismatic
divisions contains a gradation from a pure colour to a compound one with the
next. The 45 degrees red contain pure red, also orange red in all its gra-
dations, as do all the other divisions their gradations also; and if this
Spectrum is attentively observed, it will soon be seen koto small a portion of
pure colour there is in each division, that is, in each of the coloured pencils
of a ray of light, though they go by the general titles of yellow, orange, red,
&c. &c. and must be admitted into a picture, by the very same; yet, if those
separate gradations are not nicely copied, and the portion of them all together
regulated by the proportion they bear to one another in the Spectrum, their
effect in a picture will be very different to what it is there. I do not mean
that there should be so many degrees of red, &c. &c. exactly as in the
Spectrum, for it would be impossible to measure out colours that way, but
it-will be easy to observe what proportions they bear to one another, and to
let the colours in a picture have the same : for instance, there are 48 degrees
of yellow to 27 of orange, that is, nearly double the quantity of yellow to
that of orange; therefore there should be the same proportion of them in a
picture, in all the different gradations observable in the Spectrum : and the
greatest nicety, in this, must be observed, for fear of destroying the balance
* Which comprehends an infinite variety of other compound tints, formed by a mixture of the
different prismatic colours with one another, that will take their station in the picture in point of
brilliancy, according to the affinity each bears to that particular pure tint it partakes most of.