Now any theory we adopt must explain all this, as well as the particular forms of amnesia and continuities of memory. The explanation which I believe to be the correct one is this: neither B. I. nor B. IV. is strictly the original self, nor are they somnambulistic personalities, but modifications of the original self. The original Miss B. became disintegrated and as a complete psychical composition departed this life in 1893. B. I. and B. IV. are each different disintegrated parts of the complete Miss Beauchamp. In the [first] disintegration of the primary consciousness a certain portion - B. IV. - split itself off and became dormant. The remainder persisted as a modified personality - B. I. Sufficient remained to retain the memories of the past, which from this time became organised with all future experiences and made a continuous memory and personality.

The split-off dormant portion was awakened six years later as the result of an intense excitation of its constituent memories by the shock in the library, and in the awakening wrenched away from B. I. a portion of her mental associations, which thus became common to both. As in 1893, a certain number of groups of psychical associations that belonged to B. I. now remained split off and dormant. Those that remained awake became organised into another personality as B. IV....

Thus the dominant part of B. IV.'s consciousness, being awake up to 1893, remembers her whole life until that date; but being asleep from 1893 to 1899, she has no knowledge of the events of this period. Waking up again suddenly in 1899, she goes back to the day when she went to sleep....

In 1897 B. III., the subliminal consciousness, became developed and acquired an independent existence, and became known as Sally; so that Sally represents the subliminal consciousness, and B. I. and B. IV. simply certain disintegrated elements in the primary supernatant consciousness. The result is that neither B. I. nor B. IV. is the whole original Miss Beauchamp, but - if my studies have led me to the right interpretation - the original self is a combination of the two. If this be true, it should be possible to combine them and obtain the original self....

1 See " A Contribution to the Study of Hysteria and Hypnosis, Ac," in the Proceedings of the Society for Psychical Research, vol. xiv. p. 95.

There remains B. II.; who is B. II. ? Now it is possible to hypnotise B. I. and also B. IV. [and] it transpired that B. I. and B. IV. hypnotised became the same person, or B. II.... B. II. knows the thoughts of B. I. and equally knows the thoughts of B. IV., but B. I. and B. IV. know nothing of B. II.

Now, if the original complete Miss Beauchamp is a total combination of the whole of B. I. and of B. IV., then if we could put I. and II. together, we ought to get Miss Beauchamp. This I was able to do by suggestion given to the hypnotic self, B. II., and to obtain the original self for a number of hours at a time. I suggested to B. II. that when awake as B. I. she would know all about B. IV., and as B. IV. would know all about B. I. and feel and think as B. I. did. I then waked her up successively as B. I. and as B. IV. In each case she knew all about the times to which I had special reference when I gave the suggestions. As B. I. she told me what she had been doing as B. IV., and as B. IV. what she had been doing as B. I.... So that in her sensations, and acquirements, and memory, she, when thus put together, to all appearances was the original Miss Beauchamp.

This new personality is plainly a composite of B. I. and B. IV.; not only in memory, but in character, tastes, and general make-up. Sally calls her "that new thing," and has very little, if any, control over her. She herself does not know which she is - I. or IV. - but says she is both. When she is present, Sally tends to sink out of sight and go back - as Sally puts it - "to where I came from".

This final synthesis - the construction of what appears to be the original self - seems to me akin to a proof of the correctness of the diagnosis.