313

Proportions of the head and face.

(a b) is equal to (c d).

[Footnote: See Pl. VII, No. 3. Reference may also be made here to two pen and ink drawings of heads in profile with figured measurements, of which there is no description in the MS. These are given on Pl. XVII, No. 2.—A head, to the left, with part of the torso [W. P. 5a], No. 1 on the same plate is from MS. A 2b and in the original occurs on a page with wholly irrelevant text on matters of natural history. M. RAVAISSON in his edition of the Paris MS. A has reproduced this head and discussed it fully [note on page 12]; he has however somewhat altered the original measurements. The complicated calculations which M. RAVAISSON has given appear to me in no way justified. The sketch, as we see it, can hardly have been intended for any thing more than an experimental attempt to ascertain relative proportions. We do not find that Leonardo made use of circular lines in any other study of the proportions of the human head. At the same time we see that the proportions of this sketch are not in accordance with the rules which he usually observed (see for instance No. 310).]

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

Notebooks of Leonoardo da Vinci
VII: On the Proportions and on the Movements of the Human Figure.
Preliminary observations.
308,
309
Proportions of the head and face.
310,
311,
312,
313,
314,
315,
316,
317,
318
Proportions of the head seen in front.
319,
320,
321,
322,
323
Relative proportion of the hand and foot.
324
Relative proportions of the foot and of the face.
325,
326,
327
Proportions of the leg.
328,
329,
330,
331
On the central point of the whole body.
332
The relative proportions of the torso and of the whole figure.
333
. . .