Complex sentence: See is translated in 1897 into the first English medical text book on homosexuality, co-authored with John Addington Symonds, described the sexual relations of homosexual men and boys, something that Ellis did not consider to be a disease, immoral, or a crime.
Split into simpler sentences: See is translated in 1897, becoming the first English medical text book on homosexuality, co-authored with John Addington Symonds. It describes the sexual relations of homosexual men and boys, something that Ellis did not consider to be a disease, immoral, or a crime.