[C] This quality may explain the Talmud’s (Berachoth 60a, Nidah 31) assertion that if the female orgasm occurs first, the child is of the masculine sex, while when the male orgasm precedes that of the female, a girl is born. When the male orgasm occurs first, the semen is discharged within the acid vaginal contents. The spermatozoa are, therefore, weakened, and a girl is born. When the woman’s orgasm occurs first, the semen is then ejaculated into the alkaline cervical secretion which was expelled with Kristeller’s plug. Hence, the spermatozoa remain strong and vigorous and a boy is born. The modern theory of sex is that it is determined by the germ-cells as every other unit character. Every spermatozoön and ovum possess originally male and female determiners. But during the maturition the determiners of one sex are cast off, and the gametes are either male or female. Hence, when the ovum is male, only a male spermatozoön will be admitted within its interior, and a boy will be the result. If the ovum is female, only a female spermatozoön will be able to penetrate it, and a girl will be born. [D] Explanatory remarks: When a voluptuary thought originates in the centre of voluptas 11, it is transmitted by fibre 12 to the vasodilatory centre 4 in the medulla oblongata, hence by fibre 14 in the spinal cord to the centre of erection 16 in the lumbar part of the cord; hence through the nervi erigentes 17 to the genitals at the periphery 10, where it responds by an erection. The excitation of the erection is then, if strong enough, transmitted through the centripetal or sensory nerve 9 to the centre of ejaculation 7; hence again through the centrifugal ejaculatory nerve 8 to the periphery, where ejaculation takes place. When an excitation originates at the periphery 10, as in sleep, it is transmitted through the sensory nerve 18 to the centre of erection 16, and through nerve 15 to the vasodilatory centre 4; hence back to the periphery by the nerves 14 and 17, after the inhibitory nerve 13 has been paralyzed. The excitation of the erection is then transmitted, as previously described, through nerve 9 to centre 7 and nerve 8 to the periphery where ejaculation takes place. In either case the excitation of the ejaculation is then carried through the sensory nerve 5 to the centre of libido 3 and is there experienced as a pleasurable feeling. When the centre of erection 16 is directly irritated, for example, by electricity, after the spinal cord has been severed, the stimulus is directly transmitted through nerve 17 to the periphery 10 to respond with erection. The same road is taken by the excitation of the centre of erection 16 during sleep. In spermatorrhoea the stimulus at the centre of voluptas 11 is directly transmitted through nerve 6 to the centre of ejaculation 7, hence through nerve 8 to the periphery 10, and ejaculation takes place without erection.