# ent

id: 44849
type: WORK_OF_ART
entity:
  "The Origin of Species by means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life.


# bib

id: 20915
title: Field''s Chromatography or Treatise on Colours and Pigments as Used by Artists
author: Field, George
txt: ./txt/20915.txt
cache: ./cache/20915.txt
extension: .txt
mime: text/plain
summary:
  Of all colours, except black, blue contrasts white most powerfully. lastly of that gray tint which is known by the name of Ultramarine Ash. The refuse, containing little or no blue, furnishes the useful pigment, red, and Oxford ochre to yellow, this pigment is to the colour blue, yellows, reds, and blues, the following orange and green pigments are or predominating colour in russet is red, to which yellow and blue are is a water-colour pigment, transparent and inclining to red; deep, full, by the brown, Prussian blue, and black: an equally good slate colour " = 2 Purple-blue} + Light Brown, or Black + 2 White when we mix coloured materials, blues, yellows, and reds, the compound is never white, but grey or black; even if these coloured pigments are light colours; thus it _blues_ white, _greens_ yellow, _purples_ red, colour to form white light; thus, green is the complementary of red,


id: 14504
title: Experiments and Considerations Touching Colours (1664)
author: Boyle, Robert
txt: ./txt/14504.txt
cache: ./cache/14504.txt
extension: .txt
mime: text/plain
summary:
  Colours, as we see in Marble that appears White or Black, or Red or Blew, Ribbon, of these seven Colours, Black, White, Red, Blew, Green, Yellow, and appear to the Eye a Lighter Colour than Blew, but (by our first Experiment A fifth way, by which a Liquor may change the Colour of a Body, is, by Liquor may alter the Colour of another Body, by putting the Parts of it Sun-beams being cast from a Coloured Body upon a neighbouring White Wall, Whiteness and Blackness, to shew, that those two Colours may by a change of mention''d may shew us, that where the change of Colour in Black Bodies is the Colours appear''d the same as to kind that they did to the naked Eye. _EXPERIMENT VI._ Bodies abounding in Sulphureous parts are to afford a Red Colour, is one, That the Colour (_Pyrophilus_) of a Body may be chang''d by a Liquor which


id: 39286
author: Howard, Frank
txt: ./txt/39286.txt
cache: ./cache/39286.txt
extension: .txt
mime: text/plain
summary:
  acknowledged general principles of Colouring as a means of Art, _Section 1._--PRINCIPLES OF COLOURING OBJECTS 71 principles by which the effects of Colouring, and light and shade have principles must regulate Colouring as a means of Art. The mere representation of any object, however accurately detailed and the lights be white, and the shadows black, or differently coloured, indispensable in a coloured Work of Art. As well as Breadth of Chiaroscuro, there must be BREADTH OF TONE, the affording a better means than Oil colours (in which the light tints PRINCIPLES OF COLOURING OBJECTS. the atmosphere reduces the colours of all objects to a blue tint, so When the atmosphere is coloured by the light of the sun, the blue is beautiful blue tint, slightly warmed by the golden colour of the difference of tint--the shadows being blue or purple, and the lights a Neri, "neither should appear in a finely coloured picture; the

title:
  Colour as a Means of Art Being an Adaption of the Experience of Professors to the Practice of Amateurs


id: 40896
title: Elementary Color
author: Bradley, Milton
txt: ./txt/40896.txt
cache: ./cache/40896.txt
extension: .txt
mime: text/plain
summary:
  white surface, the result is a color between the red and the orange. proportion of the red and orange color-effect which is produced by any a line of tints of that color, and with a black disk, shades. accepted standards and their disk combinations; and Colored Papers and the six spectrum colors red, orange, yellow, green, blue and violet and _Warm Colors._--Red, orange and yellow, and combinations in which they Young-Helmholtz theory red, green and violet are termed primary colors These effects are imitated on the color wheel by the use of a white disk nature three primary colors, red, yellow and blue; and by the mixture of color, white, black, gray or silver and gold; for example, a blue green sizes of disks on the color wheel in shade, standard and tint of red. "Pure Spectrum Scales" consists in part of the six standard colors, red,


id: 44849
title: Colouration in Animals and Plants
author: Tylor, Alfred
txt: ./txt/44849.txt
cache: ./cache/44849.txt
extension: .txt
mime: text/plain
summary:
  this was due to the fact that in the lower, transparent, animals, colour differences of form, structure, colour, or habit, giving to the Natural science has shown us how the existing colouration of an animal uniform in colour, while the leopard is spotted, and the tiger striped. From a colouration point of view, we might readily divide the animal power of discriminating colours is possessed by the lower animals. that, on the one hand, a dark spot is often formed by the colouring cases of true decorative colouring in our sense of the term, for all by a spot, often of a different colour from the rest of the wing as in and this is especially the case with white or light coloured species. marked with colour, and we know of no case in which a pattern runs animals the colouring would still follow structural lines, and there


