III.

The Constituents of Semen. Function of the Prostate. The Properties of
Semen. Aphrodisiacs. Alcohol, Opium, etc. Anaphrodisiacs. The Stimulant
Influence of Semen in Coitus. The Internal Effects of Testicular
Secretions. The Influence of Ovarian Secretion.

IV.

The Aptitude for Detumescence. Is There an Erotic Temperament? The
Available Standards of Comparison. Characteristics of the Castrated.
Characteristics of Puberty. Characteristics of the State of Detumescence.
Shortness of Stature. Development of the Secondary Sexual Characters. Deep
Voice. Bright Eyes. Glandular Activity. Everted Lips. Pigmentation.
Profuse Hair. Dubious Significance of Many of These Characters.


THE PSYCHIC STATE IN PREGNANCY.

The Relationship of Maternal and Sexual Emotion. Conception and Loss of
Virginity. The Anciently Accepted Signs of This Condition. The Pervading
Effects of Pregnancy on the Organism. Pigmentation. The Blood and
Circulation. The Thyroid. Changes in the Nervous System. The Vomiting of
Pregnancy. The Longings of Pregnant Women. Mental Impressions. Evidence
for and Against Their Validity. The Question Still Open. Imperfection of
Our Knowledge. The Significance of Pregnancy.


APPENDIX.