The Notebooks of Leonardo Da Vinci

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Page 331 of 1565.
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_m n o_ are equal. The narrowest width of the leg seen in front goes
8 times from the sole of the foot to the joint of the knee, and is
the same width as the arm, seen in front at the wrist, and as the
longest measure of the ear, and as the three chief divisions into
which we divide the face; and this measurement goes 4 times from the
wrist joint of the hand to the point of the elbow. [14] The foot is
as long as the space from the knee between _a_ and _b_; and the
patella of the knee is as long as the leg between _r_ and _s_.

[18] The least thickness of the leg in profile goes 6 times from the
sole of the foot to the knee joint and is the same width as the
space between the outer corner of the eye and the opening of the
ear, and as the thickest part of the arm seen in profile and between
the inner corner of the eye and the insertion of the hair.

_a b c_ [_d_] are all relatively of equal length, _c d_ goes twice
from the sole of the foot to the centre of the knee and the same
from the knee to the hip.

[28]_a b c_ are equal; _a_ to _b_ is 2 feet--that is to say
measuring from the heel to the tip of the great toe.

[Footnote: See Pl. XV. The text of lines 2-17 is to the left of the
front view of the leg, to which it refers. Lines 18-27 are in the
middle column and refer to the leg seen in profile and turned to the
left, on the right hand side of the writing. Lines 20-30 are above,
to the left and apply to the sketch below them.

Some farther remarks on the proportion of the leg will be found in
No. 336, lines 6, 7.]

On the central point of the whole body.

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