These folio references are to the Leonardo manuscript in the Ambrosian Library, Milan, as given after its recent restoration. See Il Codice Atlantico di Leonardo da Vinci…, viii (Florence and New York, 1975). In the previous edition of the Codex Atlanticus (Milan, 1894–1904), the same sheets appear as folios 112 r-a and 249 v-c. Cf.PedrettiC., The Codex Atlanticus of Leonardo da Vinci: A catalogue of its newly restored sheets (2 vols, New York, 1978–79), sub numero.
2.
For a tracing and a discussion of these drawings, see PedrettiC., The literary works of Leonardo da Vinci edited by J. P. Richter: A commentary (Oxford, 1977), ii, 133–4.
3.
Cf.PedrettiRichterCommentary, loc. cit. (without reproduction). The dates of the drawings are those given by Leonardo in his notes; see Richter, op. cit. infra. As far as we know, Pedretti's are the only previous discussions of these drawings. Many other commentators mention them, but in each case, the commentator writes either that the drawings are lost, have not been preserved, were never published, or are yet to be discovered.
4.
The literary works of Leonardo da Vinci, ed. by RichterJ. P., (first edn, London, 1883; second, rev. edn, Oxford, 1939), ii, § 906.
5.
Ibid., § 902.
6.
Ibid., §§ 892–910.
7.
Pedretti, op. cit. (ref. 2), ii, §§ 892–910.
8.
Cf. ibid., 18–19.
9.
Ibid., § 902, Plate CVIII, no. 5. See also the recent exhibition catalogue by RobertsJ. and PedrettiC., The Codex Hammer of Leonardo da Vinci (Palazzo Vecchio, Florence, 1982), fol. 2A (2r), with full bibliography, 126.
