hallucinations, haunted by sounds: the hysteria of Schumann, the morbid exaltation of Berlioz, communicate themselves to him in the music that besieges his brain. Obliged at last to send for a doctor, we find him, at the end of the book, ordered back to Paris, to the normal life, the normal conditions, with just that chance of escape from death or madness. So suggestively, so instructively, closes the record of a strange, attractive folly--in itself partly a serious ideal (which indeed is Huysmans' own), partly the caricature of that ideal. Des Esseintes, though studied from a real man, who is known to those who know a certain kind of society in Paris, is a type rather than a man: he is the offspring of the Decadent art that he adores, and this book a sort of breviary for its worshippers. It has a place of its own in the literature of the day, for it sums up, not only a talent, but a spiritual epoch. _A Rebours_ is a book that can only be written once, and since that date Huysmans has published a short story, _Un Dilemme_ (1887), which is merely a somewhat lengthy anecdote; two novels, _En Rade_ (1887) and _La-Bas_ (1891), both of which are interesting experiments, but neither of them an entire success; and a volume of art criticism, _Certains_ (1890), notable for a single splendid essay, that on Felicien Rops, the etcher of the fantastically erotic. _En Rade_ is a sort of deliberately exaggerated record--vision rather than record--of the disillusions of a country sojourn, as they affect the disordered nerves of a town _nevrose_. The narrative is punctuated by nightmares, marvellously woven out of nothing, and with no psychological value--the human part of the book being a sort of picturesque pathology at best, the representation of a series of states of nerves, sharpened by the tragic ennui of the country. There is a cat which becomes interesting in its agonies; but the long boredom of the man and woman is only too faithfully shared with the reader. _La-Bas_ is a more artistic creation, on a more solid foundation. It is a study of Satanism, a dexterous interweaving of the history of Gilles de Retz (the traditional Bluebeard) with the contemporary manifestations of the Black Art. 'The execration of impotence, the hate of the mediocre--that is perhaps one of the most indulgent definitions of Diabolism,' says Huysmans, somewhere in the book, and it is on this side that one finds the link of connection with the others of that series of pessimist studies in life. _Un naturalisme spiritualiste_, he defines his own art at this point in its development; and it is in somewhat the 'documentary' manner that he applies himself to the study of these strange problems, half of hysteria, half of a real mystical corruption that does actually exist in our midst. I do not know whether the monstrous tableau of the Black Mass--so marvellously, so revoltingly described in the central episode of the book--is still