¹ Freud's own technical term, the perfectly natural Fehlleistung, has resisted equally natural translation, as have so many of his unobtrusively new terms. Ernest Jones’ neo-Greek parapraxis is a brilliant enough feat so far as precise translation of meaning is concerned, but it will of course never escape the outsider's charge of jargon. No substitute has been found, and the new Freud translation which is in the process of emerging has been compelled to retain “ parapraxis.” But it ought to be more generally realized.that most of Freud's neologisms show no trace of Latin or Greek. If, for instance, the clear and simple Uberich has become a “superego,” this is only because the English language would not easily tolerate an “over-I.”