id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
20915	Field, George	Field's Chromatography or Treatise on Colours and Pigments as Used by Artists			.txt	text/plain	60868	4618	74	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,	./cache/20915.txt	./txt/20915.txt