A sufficient example is the case of the Rev. Thomas C. Hanna, for knowledge of which the scientific world is indebted to Dr. Boris Sidis.[P] Following a fall from his carriage, Mr. Hanna, a Connecticut clergyman, lost all consciousness of his identity, had no memory for the events of his life prior to the accident, recognized none of his friends, could not read or write, nor so much as walk or talk,--was, in fact, like a child new born. On the other hand, as soon as the rudiments of education were acquired by him once more, he showed himself the possessor of a vigorous, independent, self-reliant personality, lacking all knowledge of the original personality, but still able to adapt himself readily to his environment and make headway in the world. Ultimately, through methods which are distinctively modern, Dr. Sidis was able to recall the vanished self, and, fusing the secondary self with it, restore the clergyman to his former sphere of usefulness. This, of course, is an extreme example. The usual procedure is for the secondary personality to retain some of the characteristics of the original self--as the ability to read, write, etc.--and give itself a name. In this way Ansel Bourne, the Rhode Island itinerant preacher, became metamorphosed into A. J. Brown, and, without any recollection of his former career or relationships, drifted to Pennsylvania and began an entirely new existence as a shopkeeper in a small country town. Similarly with Dr. R. Osgood Mason's patient, Alma Z., in whom the secondary personality assumed the odd name of "Twoey," spoke, as Dr. Mason phrased it, "in a peculiar child-like and Indianlike dialect," and announced that her mission was to cure the broken down physical organism of the original self, which remained completely in abeyance so long as "Twoey" was in evidence. Here, as is apparent, we have a case almost identical with that of Lurancy Vennum, the sole difference being that "Twoey"--who, by the way, is credited with having exercised seemingly supernormal powers--did not pose as a returned visitant from the world of spirits.