El pozo de la soledad
Ellis may have developed psychological concepts of autoerotism and narcissism, both of which were later developed further by Sigmund Freud. Ellis's influence may have reached Radclyffe Hall, who would have been about 17 years old at the time "Sexual Inversion" was published. She later referred to herself as a sexual invert and wrote of female "sexual inverts" in "Miss Ogilvy Finds Herself" and "The Well of Loneliness". When Ellis bowed out as the star witness in the trial of "The Well of Loneliness" on 14 May 1928, Norman Haire was set to replace him but no witnesses were called.