Thus there remain in this group the cases of forgetting and the errors, despite better knowledge, the lapses in speaking, reading, writing, the erroneously carried-out actions, and the so-called chance actions. The explanations of these so definite psychic processes are connected with a series of observations which may in part arouse further interest.

I. By abandoning a part of our psychic capacity as unexplainable through purposive ideas we ignore the realms of determinism in our mental life. Here, as in still other spheres, determinism reaches farther than we suppose. In the year 1900 I read an essay published in the Zeit written by the literary historian R. M. Meyer, in which he maintains, and illustrates by examples, that it is impossible to compose nonsense intentionally and arbitrarily. For some time I have been aware that it is impossible to think of a number, or even of a name, of one’s own free will. If one investigates this seeming voluntary formation, let us say, of a number of many digits uttered in unrestrained mirth, it always proves to be so strictly determined that the determination seems impossible. I will now briefly discuss an example of an “arbitrarily chosen” first name, and then exhaustively analyse an analogous example of a “thoughtlessly uttered” number.

While preparing the history of one of my patients for publication I considered what first name I should give her in the article. There seemed to be a wide choice; of course, certain names were at once excluded by me, in the first place the real name, then the names of members of my family to which I would have objected, also some female names having an especially peculiar pronunciation. But, excluding these, there should have been no need of being puzzled about such a name. It would be thought, and I myself supposed, that a whole multitude of feminine names would be placed at my disposal. Instead of this only one sprang up, no other besides it; it was the name Dora.

I inquired as to its determination: “Who else is called Dora?” I wished to reject the next idea as incredulous; it occurred to me that the nurse of my sister’s children was named Dora. But I possess so much self-control, or practice in analysis, if you like, that I held firmly to the idea and proceeded. Then a slight incident of the previous evening soon flashed through my mind which brought the looked-for determination. On my sister’s dining-room table I noticed a letter bearing the address, “Miss Rosa W.” Astonished, I asked whose name this was, and was informed that the right name of the supposed Dora was really Rosa, and that on accepting the position she had to lay aside her name, because Rosa would also refer to my sister. I said pityingly, “Poor people! They cannot even retain their own names!” I now recall that on hearing this I became quiet for a moment and began to think of all sorts of serious matters which merged into the obscure, but which I could now easily bring into my consciousness. Thus when I sought a name for a person who could not retain her own name no other except “Dora” occurred to me. The exclusiveness here is based, moreover, on firmer internal associations, for in the history of my patient it was a stranger in the house, the governess, who exerted a decisive influence on the course of the treatment.

This slight incident found its unexpected continuation many years later. While discussing in a lecture the long-since published history of the girl called Dora it occurred to me that one of my two women pupils had the very name Dora which I was obliged to utter so often in the different associations of the case. I turned to the young student, whom I knew personally, with the apology that I had really not thought that she bore the same name, and that I was ready to substitute it in my lecture by another name.

I was now confronted with the task of rapidly choosing another name, and reflected that I must not now choose the first name of the other woman student, and so set a poor example to the class, who were already quite conversant with psychoanalysis. I was therefore well pleased when the name “Erna” occurred to me as the substitute for Dora, and Erna I used in the discourse. After the lecture I asked myself whence the name “Erna” could possibly have originated, and had to laugh as I observed that the feared possibility in the choice of the substitutive name had come to pass, in part at least. The other lady’s family name was Lucerna, of which Erna was a part.

In a letter to a friend I informed him that I had finished reading the proof-sheets of The Interpretation of Dreams, and that I did not intend to make any further changes in it, “even if it contained 2,467 mistakes.” I immediately attempted to explain to myself the number, and added this little analysis as a postscript to the letter. It will be best to quote it now as I wrote it when I caught myself in this transaction:—

“I will add hastily another contribution to the Psychopathology of Everyday Life. You will find in the letter the number 2,467 as a jocose and arbitrary estimation of the number of errors that may be found in the dream-book. I meant to write: no matter how large the number might be, and this one presented itself. But there is nothing arbitrary or undetermined in the psychic life. You will therefore rightly suppose that the unconscious hastened to determine the number which was liberated by consciousness. Just previous to this I had read in the paper that General E. M. had been retired as Inspector-General of Ordnance. You must know that I am interested in this man. While I was serving as military medical student he, then a colonel, once came into the hospital and said to the physician: ‘You must make me well in eight days, as I have some work to do for which the Emperor is waiting.’

“At that time I decided to follow this man’s career, and just think, to-day (1899) he is at the end of it—Inspector-General of Ordnance and already retired. I wished to figure out in what time he had covered this road, and assumed that I had seen him in the hospital in 1882. That would make 17 years. I related this to my wife, and she remarked, ‘Then you, too, should be retired.’ And I protested, ‘The Lord forbid!’ After this conversation I seated myself at the table to write to you. The previous train of thought continued, and for good reason. The figuring was incorrect; I had a definite recollection of the circumstances in my mind. I had celebrated my coming of age, my 24th birthday, in the military prison (for being absent without permission). Therefore I must have seen him in 1880, which makes it 19 years ago. You then have the number 24 in 2,467! Now take the number that represents my age, 43, and add 24 years to it and you get 67! That is, to the question whether I wished to retire I had expressed the wish to work 24 years more. Obviously I am annoyed that in the interval during which I followed Colonel M. I have not accomplished much myself, and still there is a sort of triumph in the fact that he is already finished, while I still have all before me. Thus we may justly say that not even the unintentionally thrown-out number 2,467 lacks its determination from the unconscious.”

Since this first example of the interpretation of an apparently arbitrary choice of a number I have repeated a similar test with the same result; but most cases are of such intimate content that they do not lend themselves to report.