[III.]
The Secondary Sexual Skin Centres. Orificial Contacts. Cunnilingus and Fellatio. The Kiss. The Nipples. The Sympathy of the Breasts with the Primary Sexual Centres. This Connection Operative both through the Nerves and through the Blood. The Influence of Lactation on the Sexual Centres. Suckling and Sexual Emotion. The Significance of the Association between Suckling and Sexual Emotion. The Association as a Cause of Sexual Perversity.
[IV.]
The Bath. Antagonism of Primitive Christianity to the Cult of the Skin. Its Cult of Personal Filth. The Reasons which Justified this Attitude. The World-wide Tendency to Association between Extreme Cleanliness and Sexual Licentiousness. The Immorality Associated with Public Baths in Europe down to Modern Times.
[V.]
Summary. Fundamental Importance of Touch. The Skin the Mother of All the Other Senses.
[SMELL.]
[I.]
The Primitiveness of Smell. The Anatomical Seat of the Olfactory Centres. Predominance of Smell among the Lower Mammals. Its Diminished Importance in Man. The Attention Paid to Odors by Savages.