_VI._
_'Prospettiva de' colri' (Perspective of Colour)_
_and_
_'Prospettiva aerea' (Aerial Perspective)._
_Leonardo distinctly separates these branches of his subject, as may
be seen in the beginning of No._ 295. _Attempts have been made to
cast doubts on the results which Leonardo arrived at by experiment
on the perspective of colour, but not with justice, as may be seen
from the original text of section_ 294.
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