"Sixteen years ago I was a little sick; took half-a-grain of opium, and lay down upon the bed. Soon, as I began to feel the tranquillising effect of the opium, I saw three men approaching me; the one in front said: 'You smoke too much tobacco.' I replied: 'I know I do.' He then said: 'Why don't you quit it?' I answered by saying: 'I have been thinking about it, but I am afraid I can't.' He extended his right arm, and placing his forefinger very near my face gave it a few very significant shakes, said, in a very impressive manner: 'You will never want to use tobacco any more as long as you live.' He continued by saying: 'You swear sometimes.' I answered: 'Yes.' He said: 'Will you promise to quit?' I intended to say 'Yes,' but just as I was about to utter the word yes, instantly a change came over me, and I felt like I had been held under some unknown influence, which was suddenly withdrawn or exhausted. I had been a constant smoker for more than twenty years. "Since the occurrence of the above incident I have not touched tobacco; have felt ever since like it would poison me, and I now feel like one draw at the pipe would kill me instantly. My desire for tobacco was suddenly and effectually torn out by the roots, but perhaps I shall never know just how it was done. "D. J. PARSONS, M.D. "_Sweet Springs, Missouri._" It would seem in the above case that the suggestibility was heightened by the use of opium, which at the same time developed a monitory hallucination.