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fol. 3v unpublished 'Chap 6th. Of Truth of Light' (equivalent 3.343f)
inaccessible to reflected light . are of course as dark as real shadow
Part 1st .
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10
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fol. 4r unpublished 'Chap 6th. Of Truth of Light' (equivalent 3.343f)
that its mass is broken up. and it ^ {usually} becomes also - <merged in> what artist
call Middle tint. . But those parts of it* which are accidentally in
Shadow<s>. is usually. by its position . <untouched> inaccessible even
to the reflected light. and always more inaccessible than the dark
5 side. It is therefore . in near objects . and in sunlight . so dark in
comparison with the high lights - that their relative degrees of
intensity can be scarcely expressed with real truth - except by the
jet black of chalk on white paper .
The effect of objects then . arranges itself into three distinct
10 masses - the high light . the middle tint . and the shadow. it
being always remembered that the middle tint embraces . both
parts exposed <to> obliquely to the ^ {direct} light - <and> touched by accidental
shadows - and parts turned away from the {direct} light - exposed
to accidental ^ {reflected} light<s>. and that the shadow - whether it occur
15 as it continually does - in pieces on the dark side - or on luminous
parts of other objects . is that part of anything which receives
neither direct . nor reflected light.*
All this has been rather definition of terms than affirmation of
facts - at least that facts are such as are evident at a thought.
20 But I must now beg the reader to confirm what I am farther to say
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MW