The letters of Sigmund Freud and Ernest Jones, beginning in 1908 shortly after the two men met and ending in 1939, the year of Freud's; death, may in a sense be regarded as the biography of psychoanlysis during these years as reflected in the thoughts and exchanges of tahe coarrfespondents not intended for public; consumption. Moare enthralling, for this reason, and what no formal biography of Freud, Jones, or Psychoanlysis would conciously disclose, the letters reveal the intimate are relationship of these two hardies of the pioneers of psychoanalysis, its crfeataor and its chief protagonist.