The Rays in that mixture do not lose or alter their several colorific qualities, but by all their various kinds of Actions mix'd in the Sensorium, beget a Sensation of a middling Colour between all their Colours, which is whiteness.
The several Rays therefore in that white Light do retain their colorific Qualities, by which those of any sort, whenever they become more copious than the rest, do by their Excess and Predominance cause their proper Colour to appear.
It has been proved also, that when the several sorts of Rays are mixed, and in crossing pass through the same space, they do not act on one another so as to change each others colorific qualities.
Perhaps the inherent colorific quality which it imposes upon our knowledge would be better understood if a similitude were indulged at this juncture.
But there is yet another consideration, apart from the colorific influence of the intellect, which, although it partakes of the nature of this quality, is nevertheless a near-truth of quite a different order.
The fourth section of the paper was devoted to the consideration of the various tests of colorific power, which have been recommended by different authors.
In such circumstances it is necessary to have some test, of easy applicability, of the kind and amount of colorific properties of any lichen, and this fortunately is readily attainable.
Tests and processes for estimating qualitatively, and quantitatively the colorific powers of individual species--with their practical applications.
The metals may be arrested at various points of the colorific circle by various degrees and kinds of oxydation.
In the latter part of the 16th century, Arcimboldo, a Milanese painter, invented a colorific music; an account of his principles and method will be found in a treatise on painting which appeared about the same time.
They show that the eye especially demands completeness, and seeks to eke out the colorific circle in itself.
If we take a glance at the copiousness of the Greek and Roman terms, we shall perceive how mutable the words were, and how easily each was adapted to almost every point in the colorific circle.
We must first have before us certain bodies arrested at any given point of the colorific circle, before we can produce gradations by their union.
As a very simple means of comprehending the principle of this, the reader has only to imagine a moveable diametrical index in the colorific circle.
And the hundred tints of this verdure do not form the only colorific charms of the landscape.
