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space c e (as is proved in the 4th of my "Perspective") [Footnote
: Nel quarto della mia prospettiva. If this reference is to the
9
diagrams accompanying the text--as is usual with Leonardo--and not
to some particular work, the largest of the diagrams here given must
be meant. It is the lowest and actually the fifth, but he would have
called it the fourth, for the text here given is preceded on the
same page of the manuscript by a passage on whirlpools, with the
diagram belonging to it also reproduced here. The words della mia
prospettiva may therefore indicate that the diagram to the
preceding chapter treating on a heterogeneal subject is to be
excluded. It is a further difficulty that this diagram belongs
properly to lines 9-10 and not to the preceding sentence. The
reflection of the sun in water is also discussed in the Theoretical
part of the Book on Painting; see Vol. I, No. 206, 207.] and it will
cover more of the water in proportion as the reflected image is
remote from the eye [10].
[
Footnote: In the original sketch, inside the circle in the first
diagram, is written Sole (sun), and to the right of it luna
moon). Thus either of these heavenly bodies may be supposed to fill
(
that space. Within the lower circle is written simulacro (image).
In the two next diagrams at the spot here marked L the word Luna
is written, and in the last sole is written in the top circle at
a.]
The image of the sun will be more brightly shown in small waves than
715
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