artificial injection of
  constituents of
  as a stimulant
Sexual anaesthesia
Sexual conjugation
Sexual desire during pregnancy
Sexual organs
Sexual selection in relation to erotic symbolism
  in relation to external sexual organs
  the probable cause of the hymen
Shadow as a fetich
Shoe,
  sexual significance of
Shoe-fetichism frequency of
  normal basis of
  illustrated by Restif de la Bretonne
  prevalence of among Chinese, etc.
  former prevalence in Europe
  congenital basis of
  acquired element in
  favored by precocity
  relation to masochism
  illustrative cases of
  dynamic element in
Sickness of pregnancy
Skin,
  sexual significance of
  condition of during coitus
  in relation to erotic temperament
  sexual pigmentation of
Slipper as a sexual symbol
Smile,
  origin of the
Sodomy,
  the term
Spain,
  sexual attractiveness of foot in
Spermatozoa reach ova,
  how the
Spermin
Sphygmanometer experiments during sexual excitement
Stature and erotic temperament
Stimulants
Stuff-fetichisms
Strychnine,
  aphrodisiac effects of
Suggestion in relation to longings of pregnancy
Symbols,
  nature of
  of sex in language

Temperament,
  alleged erotic
Testicular juices,
  effects of
Testes
Thyroid,
  condition during sexual excitement
  during pregnancy
Ticklishness in relation to stuff-fetichisms
Tumescence in relation to detumescence

Unnatural offence,
  the term
Urethra,
  variability of female
  an erogenous zone
Urethrorrhoea ex libidine
Urinary stream,
  in relation to nymphae
  an alleged index to virginity
Urine in religious rites
  possesses magical virtues
  in legends
  in medicine
  during coitus
Urolagnia
Uterus

Vagina
Vaginismus
Vasomotor conditions during coitus
Vaudonism
Virginity,
  ancient diagnosis of
Virile reflex
Voice,
  in relation to erotic temperament
  in relation to virginity
Vomiting of pregnancy
Vulva
Vulva-fetichism

Waist,
  origin of admiration for small

Yohimbin as an aphrodisiac

Zooerastia
Zoophilia erotica
Zoophilia non-erotic