“ ‘Not for the world,’ he cried with a gesture of horror. ‘It is more painful to me than I can express. If I were to see my father in one of these dreadful seizures I am convinced that I should never survive it. My own nervous system is an exceptionally sensitive one. With your permission, I will remain in the waiting-room while you go into my father’s case.’

“To this, of course, I assented, and the young man withdrew. The patient and I then plunged into a discussion of his case, of which I took exhaustive notes. He was not remarkable for intelligence, and his answers were frequently obscure, which I attributed to his limited acquaintance with our language. Suddenly, however, as I sat writing, he ceased to give any answer at all to my inquiries, and on my turning towards him I was shocked to see that he was sitting bolt upright in his chair, staring at me with a perfectly blank and rigid face. He was again in the grip of his mysterious malady.