With respect to Zola's share in the Dreyfus case everybody will recognise, I think, how difficult it is to narrate the doings of any one individual in such an intricate _mêlée_ without constant reference to the other combatants and explanation of the many points at issue. Nevertheless, though I fully recognise that the deliverance of Captain Dreyfus was not effected by Zola only, that many other able and whole-hearted men co-operated in that great achievement, I have endeavoured to disentangle Zola's share in the battle from that of the others, saying of them only what has seemed to me strictly necessary to explain his actions. I mention this in order that none may think me unjust towards Zola's fellow-fighters. And though in some introductory pages I have endeavoured to indicate the primary causes of the Affair, such as I think them to have been, in the hope that the reader may be better able to understand the fury of the fray, I have not plunged into a discussion of the Affair itself. Besides, M. Dreyfus's case is now once more before the Cour de Cassation, and reserve on a variety of matters has therefore become advisable. Further, for some years already, a far abler pen than mine, wielded by one of far greater authority, M. Joseph Reinach, has been retracing the many episodes of the Affair, and one may take it, I think, that "L'Histoire de l'Affaire Dreyfus" will not end without casting light even on matters which may still seem obscure. In one of my chapters I mention an episode in Zola's private life, which is already known to so many people that it would have been ridiculous on my part to have attempted to conceal it, even if it had been right to do so. I will not enlarge on the subject here, for it is discussed in its proper place, I will merely reiterate my conviction that if a biographer may well be kind to the virtues and a little blind to the errors of a man he has loved it is nevertheless his duty to his readers to omit nothing that may be essential for a right understanding of the man's life.