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Updated: May 2, 2025
There was also a point striking deep in the debate on Professor Loeb's experiments with sea urchins; how far had he succeeded in reproducing the species without the male spermatozoa? Not very far, it seemed, when all was said.
When a portion of this was teased up and examined under the microscope moving spermatozoa were seen, but they were not in swarms as in a normal testis, but scattered among numerous cells. On the left side was a much smaller testis, in the tissue of which I with difficulty detected a few slowly moving spermatozoa.
When in 1690 Leuwenhoek discovered spermatozoa by the aid of the microscope, the idea was evolved that each male cell contained a complete microscopic man, the homunculus; and then it was announced that not Eve, but Adam had contained all humanity within himself.
Sexual excitement in the woman causes certain congestion of the genital organs; and at the time of the orgasm there is a reflex movement which corresponds to erection, and which consists of a peristaltic movement of the tubes and uterus; to the uterus also is ascribed an act of suction by which the spermatozoa are drawn up into its interior.
There is little doubt of the possibility of spermatozoa deposited on the genitalia making progress to the seat of fertilization, as their power of motility and tenacity of life have been well demonstrated.
When killed the capon was found to be very fat: there were masses of fat around the intestines and under the peritoneum, which made it impossible to make out details such as ureter and vas deferens properly. I found a white nodule about half an inch in diameter attached to mesentery. The liquid pressed from this was swarming with spermatozoa in active motion.
After the husband had contributed the male sexual cells, or spermatozoa, in this wonderful process above outlined, it might seem that there is little he can do, except to wait, while nature carries on the process.
Leuwenhoek's discovery of the spermatozoa furnished a welcome confirmation for this doctrine, that all individuals have existed since the beginning of the world, at least as preformed germs. The immortality of man, conformably to his superior dignity, differs from the continued existence of all monads, in that after his death he retains memory and the consciousness of his moral personality.
Conception is least apt to take place from the tenth day after one period until the third day before the next; but there is practically no time during a woman's sexual life when she may not be impregnated; in this connection it must be remembered that the spermatozoa stay alive in her for more than a week.
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