But the modern explorer of the nature of man, replies:

“You are wrong, my friend. Your self is very far from being the simple, stable unity that you imagine it to be. In reality it is most complex and most unstable, easily breaking up, and sometimes breaking up so completely that it may even be replaced by an entirely new self. You do not believe this? I can prove it to you from the facts not only of scientific experiment, but also of everyday observation.”

Naturally, in support of this statement, stress would be laid on instances resembling the strange case of BCA, just narrated. And although cases at all similar to the BCA affair are extremely uncommon there are a number on record evidencing in other ways so-called “total dissociation of personality.” For example:

A prosperous Philadelphia plumber, a man of exemplary habits and seemingly in good health, left his home one day to take a short walk. From that moment he disappeared as completely as though the earth had opened and swallowed him. There was no reason why he should abscond or commit suicide, and the general belief was that he had met with foul play. Rewards were offered, and detectives employed, but no trace of him could be found. His wife, giving him up for dead, sold his business and removed with their children to Chicago.

Nearly two years later, the workmen in a tin-shop in a Southern city were startled one morning by the conduct of one of their number, who, dropping his tools and pressing his hand to his head in a bewildered way, sprang to his feet, and cried:

“My God! Where am I? How did I get here? This isn’t my shop!”

The foreman, thinking he was drunk, or had gone insane, ran forward to pacify him.

“Steady, Smith, steady!” he exclaimed. “You’ll be all right in a minute.”

The other only stared at him wildly.