_Das Ich und das Es_ was published in 1923 by the Internationaler
Psycho-analytischer Verlag, Vienna. I was able to discuss the
translation of this very obscure book with the Author, and became
responsible for it, so that it bears my name. The actual version which
follows, however, though drafted by me, has been worked over by three
people. Dr. Ernest Jones as Editor has given it his usual care; Fräulein
Anna Freud has corrected misapprehensions and also referred to the
Author several doubts that arose; but if the translation attains any
exactness in rendering the Author’s thoughts and intentions, this is
almost wholly due to Mr. James Strachey’s sedulous and discriminating
exertions in aid of clear elucidation of the text.