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72

Graphic colouring. X [[note]] Not copied [[/note]] 
"The graphic branches of Painting are inseparable from Colouring; and those who think that Drawing consists in [[underline]] outline [[underline]] only, are grossly mistaken; for light, shade & colour, which constitute the whole filling up of pictural [[strikethrough]] effects [[/strikethrough]] objects, figures & effects, have appropriate [[underline]] forms [[underline]], drawing, composition, grace & expression; and the necessity of studying these, in all their relations, is indispensible to excellence" 
[[underline]] Field [[underline]]

Charcoal of Willow   X
Charcoal for Sketching, may be had in any quantity and of good quality, from any Gunpowder Manufactory, & sawed into slender pieces.

Danger of Blackness. X [[note]] Not copied[[/note]] 
"The horror Rubens expressed at [[underline]] White in Shadows [[underline]], ought powerfully to prevail against [[underline]] Black in Colours [[underline]]— Black is to be guarded against in another respect, that as colours or hues in pictures vanish or decay, blackness (often) takes their place; and for this some allowance of freshness and force of colour should be made in painting."
[[underline]] Field [[underline]] .

Classification of Colours.  X
"The [[underline]] primary Colours [[underline]] are such as yield others by being compounded, but are not themselves capable of being [[underline]] produced [[underline]] by composition of other Colours. They are [[underline]] three [[underline]] only, [[double underline]] Yellow [[double underline]], [[double underline]] Red [[double underline]] & [[double underline]] Blue [[double underline]]; called entire Colours"
 
"The [[underline]] Secondary [[underline]] Colours are such only [[strikethrough]] are such only [[/strikethrough]] as can be composed of, or resolved into, [[underline]] two primaries [[underline]] — and are three [[strikethrough]] only [[/strikethrough], namely, [[underline]] Orange [[underline]] , composed of red & yellow; [[underline]] green [[underline]], composed of yellow & blue; and [[underline]] purple [[underline]], composed of blue & red."
"The [[underline]] Tertiary Colours [[underline]] are such only as can be composed of, & resolved into [[underline]] two secondary [[underline]], or [[underline]] three primaries [[underline]]; and these are also [[underline]] three [[underline]] — namely, [[underline]] Citrine [[underline]], composed of green & orange; or of a predominant yellow with blue & red; [[underline]] Russet [[underline]] , composed of orange & purple, of a predominant Red with blue & yellow; and [[underline]] Olive [[underline]] , composed of purple & green, or of a predominating blue with yellow and red."