If this patient had possessed the auditory type of imagination from the start, it is evident that the injury, whatever it was, to his centres for optical imagination, would have affected his practical life much less profoundly. "_The auditory type_," says M. A. Binet,[61] "_appears to be rarer than the visual._ Persons of this type imagine what they think of in the language of sound. In order to remember a lesson they impress upon their mind, not the look of the page, but the sound of the words. They reason, as well as remember, by ear. In performing a mental addition they repeat verbally the names of the figures, and add, as it were, the sounds, without any thought of the graphic signs. Imagination also takes the auditory form. 'When I write a scene,' said Legouvé to Scribe, 'I _hear_; but you _see_. In each phrase which I write, the voice of the personage who speaks strikes my ear. _Vous, qui êtes le théâtre même_, your actors walk, gesticulate before your eyes; I am a _listener_, you a _spectator_.'--'Nothing more true,' said Scribe; 'do you know where I am when I write a piece? In the middle of the parterre.' It is clear that the _pure audile_, seeking to develop only a single one of his faculties, may, like the pure visualizer, perform astounding feats of memory--Mozart, for example, noting from memory the _Miserere_ of the Sistine Chapel after two hearings; the deaf Beethoven, composing and inwardly repeating his enormous symphonies. On the other hand, the man of auditory type, like the visual, is exposed to serious dangers; for if he lose his auditory images, he is without resource and breaks down completely. "It is possible that persons with hallucinations of hearing, and individuals afflicted with the mania that they are victims of persecution, may all belong to the auditory type; and that the predominance of a certain kind of imagination may predispose to a certain order of hallucinations, and perhaps of delirium. * * * * *