Ellis returned to England in April 1879. He had decided to take up the study of sex and felt his first step must be to qualify as a physician. He studied at
St Thomas's Hospital Medical School, now part of
King's College London, but never had a regular medical practice. His training was aided by a small
legacy and also income earned from editing works in the
Mermaid Series of lesser known Elizabethan and Jacobean drama. He joined
The Fellowship of the New Life in 1883, meeting other social reformers
Eleanor Marx,
Edward Carpenter and
George Bernard Shaw. The 1897 English translation of Ellis's book
Sexual Inversion, co-authored with
John Addington Symonds and originally published in German in 1896, was the first English medical textbook on homosexuality. It describes male homosexual relations. Ellis wrote the first objective study of homosexuality, as he did not characterise it as a disease, immoral, or a crime. The work assumes that same-sex love transcended age
taboos as well as gender taboo. The work also uses the term bisexual throughout. The first edition of the book was bought-out by the executor of Symonds's estate, who forbade any mention of Symonds in the second edition. In 1897 a bookseller was prosecuted for stocking Ellis's book. Although the term
homosexual is attributed to Ellis, he wrote in 1897, "'Homosexual' is a
barbarously hybrid word, and I claim no responsibility for it." In fact, the word
homosexual was coined in 1868 by the Hungarian author
Karl-Maria Kertbeny. Ellis may have developed psychological concepts of
autoeroticism 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.
Eonism Ellis studied what today are called
transgender phenomena. Together with
Magnus Hirschfeld, Havelock Ellis is considered a major figure in the history of
sexology to establish a new category that was separate and distinct from homosexuality. Aware of Hirschfeld's studies of
transvestism, but disagreeing with his terminology, in 1913 Ellis proposed the term
sexo-aesthetic inversion to describe the phenomenon. In 1920 he coined the term
eonism, which he derived from the name of a historical figure, the
Chevalier d'Éon. Ellis explained: Ellis found eonism to be "a remarkably common anomaly", and "next in frequency to homosexuality among
sexual deviations", and categorized it as "among the transitional or intermediate forms of sexuality". As in the Freudian tradition, Ellis postulated that a "too close attachment to the mother" may encourage eonism, but also considered that it "probably invokes some defective
endocrine balance". == Marriage ==