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, where this passage is printed, _Barto_ has beenwrongly given for Braccio. In
this problem the eye is conceived of as fixed andimmovable; this is plain from
line 11.
OF THE MISTAKES MADE BY THOSE WHO PRACTISE WITHOUT KNOWLEDGE. --The
secondcontains the way in which colours vary as they recede from the
eye.
Thelimitations of two conterminous bodies are interchangeably thesurface
of each. Leonardos mistake in writing _t denota_ (line 6) for _f denota_
hasbeen rectified.
And remember that the eye _f_ and the eye_t_ must always be
kept on the same level.
This is evidence that images enter into the eye.
Hence
this should be 1509 by our reckoning. In the circles are
written,giallo--yellow, biacho--white, rosso--red. General introductions to the
book on Painting (9-13).
Differences of perception by one eye and by both eyes
(26-29).
21) stands between this and thepreceding one, No.
Compare the
definitions in 85, 2-5, 6-27.
By opera we must here understand libro dipittura
and particularly the treatise on Perspective.
_Luce_ occurs here in the sense
ofpupil of the eye as in no 51: C.
It is certainly notDemetrius Phalereus that
is meant and it can hardly be DemetriusPoliorcetes. c d_ is lower and farther
offfrom _n_, therefore it will look smaller. That which has no limitations, has
no form.
The same passage occurs as a simple Memorandum in the MS.
Aluminous
body of an oval form will appear rounder in proportion asit is farther from the
eye.
But all colours whenplaced in a full light, never vary from their true and
essentialhue. The Production of pyramid of Vision (58-60).
1, The superficies
is a limitation of the body. The plan of the book on Painting (14--17). are a
fair copy of some notes on physics.
Perspective is the best guide to the art of
Painting. The boundaries of bodies are the least of all things. Hence this
should be 1509 by our reckoning.
4, and the limitationof one body is that which
begins another. OF THE 10 ATTRIBUTES OF THE EYE, ALL CONCERNED IN PAINTING. Let
no man who is not a Mathematician read the elements of my work. The relations
of the distance points to the vanishing point (55-56). OF THE MISTAKES MADE BY
THOSE WHO PRACTISE WITHOUT KNOWLEDGE. These lines referexclusively to the third
diagram.
In the second and third prefaces, Leonardo characterises hisrivals and
opponents more closely.
Let _e d_ be the grains of millet withinthese lines. In
so small a space it can be reproduced and rearranged in its wholeexpanse.
_Luce_ occurs here in the sense ofpupil of the eye as in no 51: C. i) occurs in
the original between lines 3 and 4.
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