In some parts of the world this is further aided by artificial means. Thus it is stated by Riedel (as quoted by Ploss and Bartels) that in the Gorong Archipelago the bridegroom, before the first coitus, anoints the bride's pudenda with an ointment containing opium, musk, etc. I have been told of an English bride who was instructed by her mother to use a candle for the same purpose.
Parthenologia, pp. 302, et seq.
The connection of this mucous flow with sexual emotion was discussed early in the eighteenth century by Schurig in his Gynæcologia, pp. 8-11; it is frequently passed over by more modern writers.