We become acquainted with ghosts after various manners, according to our psychic condition. There is the spontaneous and accidental ghost who is seldom caught in the act; there is the able-bodied materialised ghost whom we catch in the act occasionally, and preserve our mental balance by clinging to his watch-chain and seals; they may be distinguished as the timeless ghost and the ghost who occasionally does time. Over and above these two generic specimens there is the ghost that throws, who is separable from the ghost that _hurls_, as our French friends put it. To hurl is to utter objectionable and unreasonable yells, preferably in the dead of night and in lonely places. This ghost is much sought after by specialists. It would be tedious to name all the varieties, but I can guarantee the unequipped that all known specimens have been carefully labelled, except possibly the odorous ghost, the ghost, that is to say, who manifests exclusively to the olfactory organ. This is an exceedingly withdrawn inappreciable kind, but it is familiar to Jean Kostka, who is a connoisseur in the smell supernatural, and has a trained psychic nose. He can distinguish between the spiritual perfume which characterises, let us say, St Stanislaus and the _odorem suavitatis_ of Lucifer. He is also an authority on conditions, and gives a ravishing description of the voluptuous enervation diffused over all his limbs when he had a private memorandum from Isis by means of raps during the reception of a master in a blue lodge. On this occasion he tells us that he was inspired to pronounce one of his most wicked and dangerous Masonic discourses. Dear M. Kostka! Dynamite would lose its destroying power in his harmless hands. At another function--but this was in a red lodge--he was overwhelmed by the presence of Lucifer, who elected and commissioned him to fight in his cause. It was a moment of unwonted intelligence--these are his own words--and he agreed, so incompetence chose its minister, and Frater Diabolus again showed himself a short-sighted rogue, because has not his emissary converted and passed over to the makers of pilgrimages? M. Kostka also at this time was so wicked as to be guilty of a pact, but he reserved two points, "the person of Christ and His mother." The reservation of these sacraments is not specialised as to its kind, but, _mon Dieu_, how distraught was Lucifer to be so palpably tricked by a _trente-troisieme_! Both these matters were, however, personal to the seer, and the lodges, whether red or blue, seem to have been quite unconscious that they had been entertaining divinity and demon unawares. M. Kostka has, in fact, been distinguished from the common herd of Masons by many favours of Lucifer, and he has naturally been ungrateful, for which I admire M. Kostka.