“Diane de Lys,” which immediately followed “La Dame aux Camélias,” is, so far as I can recall it, a picture pure and simple, a pretty story, as we say, sufficiently romantic and rather long-winded; but with “Le Demi-Monde” began his rich argumentative series, concluding only the other day with “Denise” and “Francillon,” the series in which every theme is a proposition to be established and every proposition a form of duty to be faced. The only variation that I can recollect in the list is the disinterested portraiture of “Le Père Prodigue,” with its remarkable presentation, in the figure of Albertine de la Borde, of vice domesticated and thrifty, keeping early hours and books in double-entry, and its remarkable illustration, I may further add, of all that was the reverse of infallible in the author’s power to distinguish between amiable infirmities and ugly ones. The idea on which “Le Père Prodigue” rests belongs more distinctively to the world of comedy than almost any other situation exhibited in the series; but what are we to say of the selection, for comic effect, of a fable of which the principal feature is a son’s not unfounded suspicion of the attitude of his own father to his own wife? The father is the image of a nature profusely frivolous, but we scent something more frivolous still in the way his frivolity is disposed of. At the time the play was produced the spectator thought himself warranted in recognising in this picture the personal character (certainly not the personal genius) of the elder Dumas. If the spectator _was_ so warranted, that only helps, I think, to make “Le Père Prodigue” a stumbling-block for the critic—make it, I mean, an exhibition of the author off his guard and a fact to be taken into account in an estimate of his moral reach; a moral reach, for the rest, at all events, never impugned by any obliquity in facing that conception of the duty imposed which it is the main source of the writer’s interest in the figured circumstances that they may be held to impose it, and which he was apt to set forth more dogmatically, or at least more excitedly, in an occasional and polemical pamphlet. These pamphlets, I may parenthetically say, strike me as definitely compromising to his character as artist. What shines in them most is the appetite for a discussion, or rather the appetite for a conclusion, and the passion for a simplified and vindictive justice. But I have never found it easy to forgive a writer who, in possession of a form capable of all sorts of splendid application, puts on this resource the slight of using substitutes for it at will, as if it is good but for parts of the cause. If it is good for anything it is good for the whole demonstration, and if it is not good for the whole demonstration it is good for nothing—nothing that _he_ is concerned with. If the picture of life doesn’t cover the ground what in the world _can_ cover it? The fault can only be the painter’s.