What led Herr Parish, an honourable and clearheaded critic, into this maze of incorrect and contradictory assertions? It is interesting to try to trace the causes of such _non-veridical illusions_, to find the _points de repère_ of these literary hallucinations. One may suggest that when Herr Parish 'recast the chapters' of his German edition, as he says in his preface to the English version, he accidentally left in a passage based on an earlier paper by Mr. Gurney,[7] not observing that it was no longer accurate or appropriate. After this odd passage, Herr Parish argues that a 'veridical' hallucination is regarded by the English authors as 'coincidental,' even when external circumstances have made that very hallucination a probable occurrence by producing 'tension of the corresponding nerve element groups.' That is to say, a person is in a condition--a nervous condition-- likely, _a priori_, to beget an hallucination. An hallucination _is_ begotten, quite naturally; and so, if it happens to coincide with an event, the coincidence should not count--it is purely fortuitous.[8] Here is an example. A lady, facing an old sideboard, saw a friend, with no coat on, and in a waistcoat with a back of shiny material. Within an hour she was taken to where her friend lay dying, without a coat, and in a waistcoat with a shiny back.[9] Here is the scientific explanation of Herr Parish: 'The shimmer of a reflecting surface [the sideboard?] formed the occasion for the hallucinatory emergence of a subconsciously perceived _shiny black waistcoat_ [quotation incorrect, of course], and an individual subconsciously associated with that impression.[10] I ask any lady whether she, consciously or subconsciously, associates the men she knows with the backs of their waistcoats. Herr Parish's would be a brilliantly satisfactory explanation if it were only true to the printed words that lay under his eyes when he wrote. There was no 'shiny black waistcoat' in the case, but a waistcoat with a shiny _back_. Gentlemen, and especially old gentlemen who go about in bath-chairs (like the man in this story), don't habitually take off their coats and show the backs of their waistcoats to ladies of nineteen in England. And, if Herr Parish had cared to read his case, he would have found it expressly stated that the lady 'had never seen the man without his coat' (and so could not associate him with an impression of a shiny back to his waistcoat) till _after_ the hallucination, when she saw him coatless on his death-bed. In this instance Herr Parish had an hallucinatory memory, all wrong, of the page under his eyes. The case is got rid of, then, by aid of the 'fanciful addenda,' to which Herr Parish justly objects. He first gives the facts incorrectly, and then explains an occurrence which, as reported by him, did not occur, and was not asserted to occur.