overmuch science; how Goethe, who, in the Elective Affinities and the first part of Faust, does transmute ideas into images, who wrought many such transmutations, did not invariably find the spell-word, and in the second part of Faust presents us with a mass of science which has almost no artistic character at all. But Leonardo will never work till the happy moment comes--that moment of bien-etre, which to imaginative men is a moment of invention. On this moment he waits; other moments are but a preparation, or after-taste of it. Few men distinguish between them as jealously as he did. Hence so many flaws even in the choicest work. But for Leonardo the distinction is absolute, and, in the moment of bien-etre, the alchemy complete: the idea is stricken into colour and imagery: a cloudy mysticism is refined to a subdued and graceful mystery, and painting pleases the eye while it satisfies the soul.

*How princely, how characteristic of Leonardo, the answer, Quanto piu, un'arte porta seco fatica di corpo, tanto piu e vile!

This curious beauty is seen above all in his drawings, and in these chiefly in the abstract grace of the bounding lines. Let us take some of these drawings, and pause over them awhile; and, first, one of those at Florence--the heads of a woman and a little child, set side by side, but each in its own separate frame. First of all, there is much pathos in the reappearance in the fuller curves of the face of the child, of the sharper, more chastened lines of the worn and older face, which leaves no doubt that the heads are those of a little child and its mother. A feeling for maternity is indeed always characteristic of Leonardo; and this feeling is further indicated here by the half-humorous pathos of the diminutive, rounded shoulders of the child. You may note a like pathetic power in drawings of a young man seated in a stooping posture, his face in his hands, as in sorrow; of a slave sitting in an uneasy inclined posture, in some brief interval of rest; of a small Madonna and Child, peeping sideways in half-reassured terror, as a mighty griffin with batlike wings, one of Leonardo's finest inventions, descends suddenly from the air to snatch up a lion wandering near them. But note in these, as that which especially belongs to art, the contour of the young man's hair, the poise of the slave's arm above his head, and the curves of the head of the child, following the little skull within, thin and fine as some seashell worn by the wind.

Take again another head, still more full of sentiment, but of a different kind, a little drawing in red chalk which every one remembers 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 eyelids and the lips. Another drawing might pass for the same face in childhood, with parched and feverish lips, but with 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 dainty oval of the face disengaged, they are not of the Christian family, or of Raffaelle'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 finer nerve and the keener touch can follow: it is as if in certain revealing instances we actually saw them at their work on human flesh. Nervous, electric, faint always with some inexplicable faintness, they seem to be subject to exceptional conditions, to feel powers at work in the common air unfelt by others, to become, as it were, receptacles 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 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 brooks against the sins of men, we have a hand, rough enough by 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, in the Palazzo Rosso at Genoa. Returning from the last to the original, we are no longer surprised by Saint John's strange likeness to the Bacchus which hangs near it, which set Theophile 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 train of sentiment as subtle and vague as a piece of music. No one ever ruled over his subject 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 quite out of 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 far 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 shrine 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. A hundred anecdotes were told about it, his retouchings and delays. They show him refusing to work except at the moment of invention, scornful of whoever thought that art was a work of mere industry and rule, 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 afterthoughts, 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.

It was another effort to lift a given subject out of the range of its conventional associations. Strange, after all the misrepresentations of the middle age, was the effort to see it, not as the pale Host of the altar, but as one taking leave of his friends. Five years afterwards the young Raffaelle, 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, this central head does but consummate the sentiment of the whole company--ghosts through which you see the wall, faint as the shadows of the leaves upon the wall, on autumn afternoons; this figure is but the faintest, most spectral of them all. It is the image of what the history it symbolises has more and more become for the world, paler and paler as it recedes into the distance. Criticism came with its appeal from mystical unrealities to originals, and restored no lifelike reality but these transparent shadows, spirits which have not flesh and bones.

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 himself 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 also, perhaps, by a singular circumstance, in a far-off town of France. For Ludovico became a prisoner, and ended his days at Loches in Touraine;--allowed at last, it is said, to breathe fresher air for awhile in one of the rooms of a high tower there, after many years of captivity in the dungeons below, where all seems sick with barbarous feudal memories, and where his prison is 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:--vast helmets and faces and pieces of armour, among which, in great letters, the motto Infelix Sum is woven in and out, and in which, perhaps, it is not too fanciful to see the fruit of a wistful after-dreaming over all those experiments with Leonardo on the armed figure of the great duke, that had occupied the two so often during the days of his 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 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