Take again another head, still more full of sentiment, but of a different kind, a little drawing in red chalk which every one will remember who has examined at all carefully the drawings by old masters at the Louvre. It is a face of doubtful sex, set in the shadow of its own hair, the cheek-line in high light against it, with something voluptuous and full in the eye-lids and the lips. Another drawing might pass for the same face in childhood, with parched and feverish lips, but much sweetness in the loose, short- waisted childish dress, with necklace and bulla, and in the daintily bound hair. We might take the thread of suggestion which these two drawings offer, when thus set side by side, and, following it through the drawings at Florence, Venice, and Milan, construct a sort of series, illustrating better than anything else Leonardo's type of womanly beauty. Daughters of Herodias, with their fantastic head-dresses knotted and folded so strangely to leave the [116] dainty oval of the face disengaged, they are not of the Christian family, or of Raphael's. They are the clairvoyants, through whom, as through delicate instruments, one becomes aware of the subtler forces of nature, and the modes of their action, all that is magnetic in it, all those finer conditions wherein material things rise to that subtlety of operation which constitutes them spiritual, where only the final nerve and the keener touch can follow. It is as if in certain significant examples we actually saw those forces at their work on human flesh. Nervous, electric, faint always with some inexplicable faintness, these people seem to be subject to exceptional conditions, to feel powers at work in the common air unfelt by others, to become, as it were, the receptacle of them, and pass them on to us in a chain of secret influences.

But among the more youthful heads there is one at Florence which Love chooses for its own—the head of a young man, which may well be the likeness of Andrea Salaino, beloved of Leonardo for his curled and waving hair—belli capelli ricci e inanellati— and afterwards his favourite pupil and servant. Of all the interests in living men and women which may have filled his life at Milan, this attachment alone is recorded. And in return Salaino identified himself so entirely with Leonardo, that the picture of Saint Anne, in the Louvre, has been attributed to him. It illustrates Leonardo's usual choice of pupils, men [117] of some natural charm of person or intercourse like Salaino, or men of birth and princely habits of life like Francesco Melzi—men with just enough genius to be capable of initiation into his secret, for the sake of which they were ready to efface their own individuality. Among them, retiring often to the villa of the Melzi at Canonica al Vaprio, he worked at his fugitive manuscripts and sketches, working for the present hour, and for a few only, perhaps chiefly for himself. Other artists have been as careless of present or future applause, in self-forgetfulness, or because they set moral or political ends above the ends of art; but in him this solitary culture of beauty seems to have hung upon a kind of self-love, and a carelessness in the work of art of all but art itself. Out of the secret places of a unique temperament he brought strange blossoms and fruits hitherto unknown; and for him, the novel impression conveyed, the exquisite effect woven, counted as an end in itself—a perfect end.

And these pupils of his acquired his manner so thoroughly, that though the number of Leonardo's authentic works is very small indeed, there is a multitude of other men's pictures through which we undoubtedly see him, and come very near to his genius. Sometimes, as in the little picture of the Madonna of the Balances, in which, from the bosom of His mother, Christ weighs the pebbles of the brook against the sins of men, we have a hand, rough enough by [118] contrast, working upon some fine hint or sketch of his. Sometimes, as in the subjects of the Daughter of Herodias and the Head of John the Baptist, the lost originals have been re-echoed and varied upon again and again by Luini and others. At other times the original remains, but has been a mere theme or motive, a type of which the accessories might be modified or changed; and these variations have but brought out the more the purpose, or expression of the original. It is so with the so-called Saint John the Baptist of the Louvre—one of the few naked figures Leonardo painted—whose delicate brown flesh and woman's hair no one would go out into the wilderness to seek, and whose treacherous smile would have us understand something far beyond the outward gesture or circumstance. But the long, reedlike cross in the hand, which suggests Saint John the Baptist, becomes faint in a copy at the Ambrosian Library, and disappears altogether in another version, in the Palazzo Rosso at Genoa. Returning from the latter to the original, we are no longer surprised by Saint John's strange likeness to the Bacchus which hangs near it, and which set Théophile Gautier thinking of Heine's notion of decayed gods, who, to maintain themselves, after the fall of paganism, took employment in the new religion. We recognise one of those symbolical inventions in which the ostensible subject is used, not as matter for definite pictorial realisation, but as the starting-point of a [119] train of sentiment, subtle and vague as a piece of music. No one ever ruled over the mere subject in hand more entirely than Leonardo, or bent it more dexterously to purely artistic ends. And so it comes to pass that though he handles sacred subjects continually, he is the most profane of painters; the given person or subject, Saint John in the Desert, or the Virgin on the knees of Saint Anne, is often merely the pretext for a kind of work which carries one altogether beyond the range of its conventional associations.

About the Last Supper, its decay and restorations, a whole literature has risen up, Goethe's pensive sketch of its sad fortunes being perhaps the best. The death in childbirth of the Duchess Beatrice was followed in Ludovico by one of those paroxysms of religious feeling which in him were constitutional. The low, gloomy Dominican church of Saint Mary of the Graces had been the favourite oratory of Beatrice. She had spent her last days there, full of sinister presentiments; at last it had been almost necessary to remove her from it by force; and now it was here that mass was said a hundred times a day for her repose. On the damp wall of the refectory, oozing with mineral salts, Leonardo painted the Last Supper. Effective anecdotes were told about it, his retouchings and delays. They show him refusing to work except at the moment of invention, scornful of any one who supposed that art could be a work of mere industry and rule, [120] often coming the whole length of Milan to give a single touch. He painted it, not in fresco, where all must be impromptu, but in oils, the new method which he had been one of the first to welcome, because it allowed of so many after-thoughts, so refined a working out of perfection. It turned out that on a plastered wall no process could have been less durable. Within fifty years it had fallen into decay. And now we have to turn back to Leonardo's own studies, above all to one drawing of the central head at the Brera, which, in a union of tenderness and severity in the face-lines, reminds one of the monumental work of Mino da Fiesole, to trace it as it was.

Here was another effort to lift a given subject out of the range of its traditional associations. Strange, after all the mystic developments of the middle age, was the effort to see the Eucharist, not as the pale Host of the altar, but as one taking leave of his friends. Five years afterwards the young Raphael, at Florence, painted it with sweet and solemn effect in the refectory of Saint Onofrio; but still with all the mystical unreality of the school of Perugino. Vasari pretends that the central head was never finished. But finished or unfinished, or owing part of its effect to a mellowing decay, the head of Jesus does but consummate the sentiment of the whole company—ghosts through which you see the wall, faint as the shadows of the [121] leaves upon the wall on autumn afternoons. This figure is but the faintest, the most spectral of them all.

The Last Supper was finished in 1497; in 1498 the French entered Milan, and whether or not the Gascon bowmen used it as a mark for their arrows, the model of Francesco Sforza certainly did not survive. What, in that age, such work was capable of being—of what nobility, amid what racy truthfulness to fact—we may judge from the bronze statue of Bartolomeo Colleoni on horseback, modelled by Leonardo's master, Verrocchio (he died of grief, it was said, because, the mould accidentally failing, he was unable to complete it), still standing in the piazza of Saint John and Saint Paul at Venice. Some traces of the thing may remain in certain of Leonardo's drawings, and perhaps also, by a singular circumstance, in a far-off town of France. For Ludovico became a prisoner, and ended his days at Loches in Touraine. After many years of captivity in the dungeons below, where all seems sick with barbarous feudal memories, he was allowed at last, it is said, to breathe fresher air for awhile in one of the rooms of the great tower still shown, its walls covered with strange painted arabesques, ascribed by tradition to his hand, amused a little, in this way, through the tedious years. In those vast helmets and human faces and pieces of armour, among which, in great letters, the [122] motto Infelix Sum is woven in and out, it is perhaps not too fanciful to see the fruit of a wistful after- dreaming over Leonardo's sundry experiments on the armed figure of the great duke, which had occupied the two so much during the days of their good fortune at Milan.

The remaining years of Leonardo's life are more or less years of wandering. From his brilliant life at court he had saved nothing, and he returned to Florence a poor man. Perhaps necessity kept his spirit excited: the next four years are one prolonged rapture or ecstasy of invention. He painted now the pictures of the Louvre, his most authentic works, which came there straight from the cabinet of Francis the First, at Fontainebleau. One picture of his, the Saint Anne—not the Saint Anne of the Louvre, but a simple cartoon, now in London—revived for a moment a sort of appreciation more common in an earlier time, when good pictures had still seemed miraculous. For two days a crowd of people of all qualities passed in naïve excitement through the chamber where it hung, and gave Leonardo a taste of the "triumph" of Cimabue. But his work was less with the saints than with the living women of Florence. For he lived still in the polished society that he loved, and in the houses of Florence, left perhaps a little subject to light thoughts by the death of Savonarola—the latest gossip (1869) is of an [123] undraped Monna Lisa, found in some out-of-the-way corner of the late Orleans collection—he saw Ginevra di Benci, and Lisa, the young third wife of Francesco del Giocondo. As we have seen him using incidents of sacred story, not for their own sake, or as mere subjects for pictorial realisation, but as a cryptic language for fancies all his own, so now he found a vent for his thought in taking one of these languid women, and raising her, as Leda or Pomona, as Modesty or Vanity, to the seventh heaven of symbolical expression.

La Gioconda is, in the truest sense, Leonardo's masterpiece, the revealing instance of his mode of thought and work. In suggestiveness, only the Melancholia of Dürer is comparable to it; and no crude symbolism disturbs the effect of its subdued and graceful mystery. We all know the face and hands of the figure, set in its marble chair, in that circle of fantastic rocks, as in some faint light under sea. Perhaps of all ancient pictures time has chilled it least.* As often happens with works in which invention seems to reach its limit, there is an element in it given to, not invented by, the master. In that inestimable folio of drawings, once in the possession of Vasari, were certain designs by Verrocchio, faces of such impressive beauty that Leonardo in his boyhood copied them [124] many times. It is hard not to connect with these designs of the elder, by-past master, as with its germinal principle, the unfathomable smile, always with a touch of something sinister in it, which plays over all Leonardo's work. Besides, the picture is a portrait. From childhood we see this image defining itself on the fabric of his dreams; and but for express historical testimony, we might fancy that this was but his ideal lady, embodied and beheld at last. What was the relationship of a living Florentine to this creature of his thought? By what strange affinities had the dream and the person grown up thus apart, and yet so closely together? Present from the first incorporeally in Leonardo's brain, dimly traced in the designs of Verrocchio, she is found present at last in Il Giocondo's house. That there is much of mere portraiture in the picture is attested by the legend that by artificial means, the presence of mimes and flute-players, that subtle expression was protracted on the face. Again, was it in four years and by renewed labour never really completed, or in four months and as by stroke of magic, that the image was projected?

The presence that rose thus so strangely beside the waters, is expressive of what in the ways of a thousand years men had come to desire. Hers is the head upon which all "the ends of the world are come," and the eyelids are a little [125] weary. It is a beauty wrought out from within upon the flesh, the deposit, little cell by cell, of strange thoughts and fantastic reveries and exquisite passions. Set it for a moment beside one of those white Greek goddesses or beautiful women of antiquity, and how would they be troubled by this beauty, into which the soul with all its maladies has passed! All the thoughts and experience of the world have etched and moulded there, in that which they have of power to refine and make expressive the outward form, the animalism of Greece, the lust of Rome, the mysticism of the middle age with its spiritual ambition and imaginative loves, the return of the Pagan world, the sins of the Borgias. She is older than the rocks among which she sits; like the vampire, she has been dead many times, and learned the secrets of the grave; and has been a diver in deep seas, and keeps their fallen day about her; and trafficked for strange webs with Eastern merchants; and, as Leda, was the mother of Helen of Troy, and, as Saint Anne, the mother of Mary; and all this has been to her but as the sound of lyres and flutes, and lives only in the delicacy with which it has moulded the changing lineaments, and tinged the eyelids and the hands. The fancy of a perpetual life, sweeping together ten thousand experiences, is an old one; and modern philosophy has conceived the idea of humanity as wrought upon by, and summing up in itself, all modes of thought and life. Certainly [126] Lady Lisa might stand as the embodiment of the old fancy, the symbol of the modern idea.

During these years at Florence Leonardo's history is the history of his art; for himself, he is lost in the bright cloud of it. The outward history begins again in 1502, with a wild journey through central Italy, which he makes as the chief engineer of Caesar Borgia. The biographer, putting together the stray jottings of his manuscripts, may follow him through every day of it, up the strange tower of Siena, elastic like a bent bow, down to the seashore at Piombino, each place appearing as fitfully as in a fever dream.