I do not know if you are aware of the fact that slips of the tongue can be provoked, called forth by suggestion, as it were. An anecdote will serve to illustrate this. Once when a novice on the stage was entrusted with the important part in _The Maid of Orleans_ of announcing to the King: “The Constable sends back his sword,” the principal player, during the rehearsal, played the joke of several times repeating to the timid beginner, instead of the text, the following: “The _Komfortabel_ sends back his steed.”[11] At the performance the unfortunate actor actually made his début with this perverse announcement, though he had been amply warned against so doing, or perhaps just because he had been. All these little characteristics of errors are not much illuminated by the theory of diverted attention. But that does not necessarily prove the theory wrong. There may be something missing, a link, by the addition of which the theory might be made completely satisfactory. But many of the errors themselves can be considered from another aspect. Let us select slips of the tongue, as the type of error best suited to our purpose. We might equally well choose slips of the pen or of reading. Now we must first remind ourselves that, so far, we have only enquired when and under what conditions the wrong word is said, and have received an answer on that point only. Interest may be directed elsewhere, though, and the question raised why just this particular slip is made and no other: one can consider the nature of the mistake. You will see that so long as this question remains unanswered, and the _effect_ of the mistake is not explained, the phenomenon remains a pure accident on the psychological side, even if a physiological explanation has been found for it. When it happens that I make a mistake in a word I could obviously do this in an infinite number of ways, in place of the right word substitute any one of a thousand others, or make innumerable distortions of the right word. Now, is there anything which forces upon me in a specific instance just this one special slip, out of all those which are possible, or does that remain accidental and arbitrary, and can nothing rational be found in answer to this question?