Pl. I.

Portrait of Leonardo, by himself, reproduced from the original drawing in red chalk in the Royal Library, Turin--see No. 1368, Note

Pl. II.

Three Diagrams, illustrating the theories of Linear Perspective and of Light and Shade: No. 1 from the Ashburnham MS. I No. 1--see text No. 61. Nos. 2 and 3 from MS. C., Institut de France, Paris--see text No. 141

Pl. III.

Two Diagrams, illustrating the theory of Light and Shade; from the Ashburnham MS. I: No. 1--see text Nos. 148 and 275--; No. 2--see text No. 149

Pl. IV.

Five Diagrams, illustrating the theory of Light and Shade: No. 1 from MS. E, Institut de France, Paris--see text No. 162--; Nos. 2 and 3 from the Ashburnham MS. I--see text Nos. 169 and 173--; Nos. 4 and 5 from the Codex Atlanticus, Ambrosian Library, Milan--see text Nos. 179 and 187

Pl. V.

Diagram, illustrating the theory of Light and Shade and Sketches of Figures illustrating the Movements of the Human Figure; from the Royal Library, Windsor Castle--see text Nos. 183 and 597

Pl. VI.

Four Diagrams, illustrating the theory of Light and Shade: No. 1 from the Codex Atlanticus, Milan--see text No. 191--; Nos. 2 and 3 from MS. C, Institut de France, Paris--see text Nos. 215 and 216--; No. 4 from the Ashburnham MS. I--see text No. 224

Pl. VII.

Five Drawings, illustrating the theory of the Proportions of the Human Figure, from the Royal Library, Windsor Castle; No. 1--see text No. 310--; No. 2--see text Nos. 310 and 339--; No. 3--see text No. 313--; No. 4--see text Nos. 321 and 327--; No. 5--see No 595

Pl. VIII.

Two Drawings, illustrating the theory of the Proportions of the Human Figure; No. 1 from MS. A, Institut de France, Paris--see text No. 312--; No. 2 from the Royal Library, Windsor Castle--see text No. 332

Pl. IX.

Drawing, illustrating the theory of the Proportions of the Human Figure; from the Accademia at Venice--see text No. 315

p. xxvi

Pl. X.

Drawing in silverpoint on bluish-toned paper, illustrating the theory of Proportions of the Human Figure; from the Royal Library, Windsor Castle--see text No. 316

Pl. XI.

Drawing, illustrating the theory of Proportions of the Human Figure; from the Royal Library, Windsor Castle--see text No. 318

Pl. XII.

Drawing, illustrating the theory of Proportions in, the Human Figure; from the Royal Library, Turin--see text No. 319

Pl. XIII.

Two Drawings illustrating the theory of the Proportions of the Human Figure; from the Royal Library Windsor Castle--see text No. 328

Pl. XIV.

Two drawings, illustrating the theory of Proportions of the Human Figure, from the Royal Library, Windsor Castle; No. 1--see text Nos. 326, 330--; No 2.--see text No. 334

Pl. XV.

Sketches, illustrating the theory of the Proportions of the Human Figure; from the Royal Library, Windsor Castle--see text Nos. 331 and 345

Pl. XVI.

Two Drawings, illustrating the theory of the Proportions of the Human Figure; from the Royal Library, Windsor Castle: No. 1, see text No. 335; No. 2, see text Nos. 339 and 342

Pl. XVII.

Two drawings, illustrating the theory of Proportions in the Human Figure; No. 1 from MS. A, Institut de France, Paris--see text No. 313 note--; No. 2 from the Royal Library, Windsor Castle,--see text Nos. 348 and 336

Pl. XVIII.

Drawing, illustrating the Proportions of the Human Figure, from the Accademia, Venice --see text No. 343

Pl. XIX.

Two Drawings, illustrating the theory of the Proportions of the Human Figure from the Royal Library, Windsor Castle; No. 1--see text No. 347--; No. 2--see text No. 351

Pl. XX.

Drawing, illustrating the theory of the Proportions of the Human Figure; from the Royal Library, Windsor Castle--see text No. 349

Pl. XXI.

Drawing in red chalk, illustrating the theory of the Movements of the Human Figure--see text No. 356--, and sketch in pen and ink of warriors fighting--see p. 340;--from the Royal Library, Windsor Castle

Pl. XXII.

Four Drawings, illustrating the theory of the Movements of the Human Figure: Nos. 1 and 2 from the Royal Library, Windsor Castle--see text Nos. 357 and 358--; Nos. 3 and 4 from Manuscript A, Institut de France, Paris--see text Nos. 359 and 369

Pl. XXIII.

Four Drawings, illustrating the theory of the Movements of the Human Figure: No. 1 from the Royal Library, Windsor Castle--see text No. 375--; No. 2, in red chalk, from MS. II.², South Kensington Museum, London --see text Nos. 376 and 1395--; No. 3, in red chalk, from Manuscript II.², Institut de France, Paris--see text No. 377--; No. 4 from the Royal Library, Windsor Castle--see text No. 379

Pl. XXIV.

Three Drawings, illustrating the theory of the Movements of the Human Figure: No. 1 from the Royal Library, Windsor Castle--see text No. 387--; No. 2 from the Codex Atlanticus, Milan--see text No. 388--; No. 3 from the Leicester Manuscript, Holkham Hall--see text No. 386

Pl. XXV.

Drawing, illustrating the representation of the hair falling down in curls; from the Royal Library, Windsor Castle--see text No. 389

p. xxvii

Pl. XXVI.

Charcoal Drawing of a Female Figure, from the Royal Library, Windsor Castle--see text No. 391 and p. 342

Pl. XXVII.

Five Drawings, illustrating the Botany for Painters; from the Manuscripts M (1) and G (2 to 5), Institut de France, Paris: No. 1--see text Nos. 395 and 396--; No. 2--see text Nos. 402 and 412--; No. 3--see text No. 413--; No. 4--see text No. 414--; No. 5--see text No. 417

Pl. XXVIII.

Five Drawings illustrating the Elements of Landscape Painting; from the Manuscripts M, G, E and I¹ in the Institut de France, Paris--No. 1 (MS. M)--see text No. 420--; No. 2 (MS. G)--see text Nos. 424 and 433--; No. 3 (MS. E) see text Nos. 440 and 442--; No. 4 (MS. G)--see text No. 45--; No. 5 (MS. I¹)--see text Nos. 188 and 452--;--and two drawings illustrating the theory of the Arrangement of Folds in Draperies: No. 6 from the Ashburnham Manuscript I--see text No. 390--; No. 7 from the Royal Library, Windsor Castle--see text No. 392

Pl. XXIX.

Drawing, in red chalk, representing a Landscape; from the Royal Library, Windsor Castle--see text No. 476

Pl. XXX.

Drawing of a Bust and minor Sketches; from the Royal Library, Windsor Castle--see text Nos. 486 and 487

Pl. XXXI.

Four Drawings illustrating the Practice of Painting: No. 1 from the Codex Atlanticus Milan--see text Nos. 490 and 548--; No. 2 from the Ashburnham Manuscript I--see text No. 512;--No. 3 from Manuscript A, Institut de France, Paris--see text No. 526;--No. 4 from the Ashburnham Manuscript I--see text Nos. 573 and 574

Pl. XXXII.

Drawing of a male Head, illustrating the Practice of Painting; from the Royal Library, Windsor Castle--see text Nos. 137, 575

Pl. XXXIII.

Study of Female Hands, drawn with the silverpoint on yellowish tinted paper, heightened with white; from the Royal Library, Windsor Castle--see text No. 583

Drawing of two Men on horseback fighting a Dragon; from the Collection of Baron Edmond de Rothschild, Paris; woodcut page

293

Drawing of Male Figures in various groups, from the Louvre Collections (reduced in size); woodcut page

297

Pl. XXXIV.

Representation of a Tempest, drawn with the pen and partly washed with Indian ink, from the Royal library, Windsor Castlesee text Nos. 606 and 608

Pl. XXXV.

Three Drawings, from the Royal Library, Windsor Castle: No. 1 Sketches referring to the theory of the Proportions of the Human Figure--see text No. 348--; Nos. 2 and 3 referring to the representation of the Deluge--see text Nos. 608 and 609

Pl. XXXVI.

Representation of Natural Phenomena; from the Royal Library, Windsor Castle--see text p. 307, note, and No. 477

Pl. XXXVII.

Representation of Natural Phenomena; from the Royal Library, Windsor Castle--see text p. 307, note, and No. 477

Pl. XXXVIII.

Three Drawings: No. 1 Representation of Natural Phenomena, from the Codex Atlanticus, Milan--see text No 610--; No. 2 Sketch of a Male Figure from the Ashburnham MS. I--see text No. 579--; No. 3 Sketch of Male Figures, from the Royal Library, Windsor Castle--see p. 340

p. xxviii

Pl. XXXIX.

Charcoal Drawing, representing a Deluge, from the Royal Library, Windsor Castle,--see p. 309, note

Pl. XL.

Three Drawings from the Royal Library, Windsor Castle: No. 1 Representations of Natural Phenomena, drawn with the pen and washed with Indian ink--see text Nos. 473, 608-610--; No. 2 Sketches of Male Heads in red chalk, illustrating the practice of Figure Painting--see text No. 573--;No. 3 Sketch for a Madonna picture, drawn with the silverpoint on bluish-tinted paper--see text page 343, note

Pl. XLI.

Five Drawings illustrating the theory of Painting: No. 1 from the Ashburnham Manuscript I--see text Nos. 142 and 344--; No. 2 from the Codex Atlanticus, Milan--see text No. 200--; Nos. 3 and 4 from MS. F, Institut de France, Paris--see text No. 244;--No. 5 from MS. E, Institut de France, Paris--see text Nos. 197 and 1190

Pl. XLII.

A Female Head, preparatory Drawing in silverpoint, on brown-toned paper for the Angel in the picture "La Vierge aux Rochers"; from the Royal Library, Turin--see p. 344

Pl. XLIII.

Preparatory Study of Drapery for the same figure, done with the brush and Indian ink on greenish paper, the lights heightened with white; from the Royal Library, Windsor Castle--see pp. 344, 345 note

Pl. XLIV.

Bust of a Boy, Study, in red chalk, for the figure of the Infant Christ in the same picture; from the Royal Library, Windsor Castle --see p. 345 note

The Wall-Painting of the Last Supper, at Milan, woodcut page

334

Pl. XLV.

Preparatory Sketch for the painting of the Last Supper; from the Royal Library, Windsor Castle--see p. 335

Pl. XLVI.

Preparatory Sketch for the painting of the Last Supper drawn in red chalk; from the Accademia, Venice--see text No. 668

Pl. XLVII.

Study for the Head of St. Matthew in the painting of the Last Supper, drawn in red chalk; from the Royal Library, Windsor Castle--see p. 333

Pl. XLVIII.

Study, in black chalk, for the Head of St. Philip in the same picture; from the Royal Library, Windsor Castle--see p. 333

Pl. XLIX.

Study, in charcoal, for St. Peter's right Arm in the same picture; from the Royal Library, Windsor Castle--see p. 333

Pl. L.

Study, in red chalk, for the Head of Judas in the same picture; from the Royal Library, Windsor Castle--see p. 333

Raphael's Sketch after Leonardo's Cartoon of the Battle of Anghiari from the University Galleries, Oxford--see p. 336 foll. on page

337

Study of two Heads of fighting Warriors, for the painting of the Battle of Anghiari, drawn in black chalk; from the Museum at Buda-Pesth--see p. 340 on page

338

Study for a fighting Warrior, for the same painting, drawn in red chalk; from the Museum at Buda-Pesth,--see p. 340 on page

339

Pl. LI.

Drawing of the Head of a Criminal (the original in red chalk); from the Royal Library, Windsor Castle--see p. 333

Study of the Head of St. John in the painting of "La Vierge aux Rochers" in the Louvre, Paris--see p. 344, 345, note on page

342

The picture of "La Vierge aux Rochers" in the Louvre, Paris, woodcut on page

344

p. xxix

Pl. LII.

Two Drawings: No. 1 Group of Figures, in silverpoint on reddish-toned paper, from the Royal Library, Windsor Castle--see Nos. 665, 666 note and 594 note; No. 2, Sketch of Horsemen fighting, Study for the cartoon of the Battle of Anghiari; from the British Museum, London--see p. 336

Pl. LIII.

Study for the Cartoon of the Battle of Anghiari; drawing from the Accademia, Venice--see p. 336

Pl. LIV.

Study for the cartoon of the Battle of Anghiari; drawing from the Accademia, Venice--see p. 336

Pl. LV.

Study for the Cartoon of the Battle of Anghiari, drawing from the Accademia, Venice--see p. 337

Pl. LVI.

Study in black chalk for the Cartoon of the battle of Anghiari, in the Royal Library, Windsor Castle--see p. 338

Pl. LVII.

Cesare da Sesto's Copy of part of the Cartoon of the Battle of Anghiari; charcoal Drawing from the Royal Library, Windsor Castle--see p. 337

Pl. LVIII.

Studies for Allegorical Compositions; from the Royal Library, Windsor Castle--see text No. 672, note

Pl. LIX.

Drawing of an Allegorical Composition; from the Library of Christ Church College, Oxford--see text No. 676

Pl. LX.

Four Drawings of Allegorical Representations: No. 1 from the Library of Christ Church College, Oxford--see text No. 676--; No. 2-4 from Manuscript M, Institut de France, Paris--see text Nos. 699-701

Pl. LXI.

Allegorical Composition, from the Library of Christ Church College, Oxford--see text No. 677

Pl. LXII.

Two Drawings: No. r Portrait of Bernardo di Bandino, when hanged; in the possession of Mons. Thibaudeau, London--see text No. 664--; No. 2: Emblems, from the Royal Library, Windsor Castle--see text No. 681

Pl. LXIII.

Studies of Emblems; from the Royal Library, Windsor Castle--see text No. 684

Pl. LXIV.

Emblematic Representation; from the Royal Library, Windsor Castle--see text No. 688