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This formation is best seen at Oeningen, in the valley of the Rhine, between Constance and Schaffhausen, a locality celebrated for having produced in the year 1700 the supposed human skeleton called by Scheuchzer "homo diluvii testis," a fossil afterwards demonstrated by Cuvier to be a reptile, or aquatic salamander, of larger dimensions than even its great living representative, the salamander of Japan.
O pie Pancrati, testis pietatis et equi, Te facit heredem, tu clemens suscipe matrem. "Another leaden coffin, full of bones, but without any inscription, has also been found, longer than those of the founder's, having a semicircular top, and six large rings of 3-1/4 inches diameter attached to the outsides.
After the transplantation of the new glands he will either ligate one side permanently, and allow one testis to carry on the work of rejuvenation while the other can be used for procreation, or he will ligate both sides and say to the man, "I am tying off both testes because you will need to rebuild for at least one year before you should think of becoming a father.
Fetichism Not Covering the Whole Ground of Sexual Selection. It is Based on the Individual Factor in Selection. Crystallization. The Lover and the Artist. The Key to Erotic Symbolism is to be Found in the Emotional Sphere. The Passage to Pathological Extremes. The Psychological Significance of Detumescence. The Testis and the Ovary. Sperm Cell and Germ Cell. Development of the Embryo.
The testis, with the mesonephros, forming the epididymis, closely attached to it, projects into the coelom, and without losing its connexion with the peritoneum changes its position gradually during development, passing backwards and downwards until it comes to lie over the wall of the abdomen just in front of the pubic symphysis of the pelvic girdle.
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.
If the inherited or congenital process of dislocation requires the presence of hormones produced by a normal testis, then we can understand why a defective testis does not descend completely, because it does not produce the hormone which is necessary to stimulate the hereditary mechanism to complete dislocation.
The development, therefore, may be considered to be related to the presence of a hormone derived from the normal testis, but not to a special quantity or quality of hormone associated with maturity or the functional activity of the organ. In Rodents, however, there is a difference in the organs, not only at maturity, but in every rutting season, at any rate in Muridae such as rats and others.
Ante-pituitary dominance in a male reinforces the general masculinity while the post-pituitary depresses it. The post-pituitary in a woman augments her natural trend, ante-pituitary tending to counteract it. In other words, post-pituitary and ovary are conjunctive, ante-pituitary and ovary are disjunctive, post-pituitary and testis are opponents, ante-pituitary and testis are allies.
It is possible that while the parasite prevents the development of testis or ovary in the host, it gives up to the body of the host a hormone from its own ovaries which tends to develop the female secondary characters: for the parasite is itself a Crustacean, and therefore the hormone from its ovaries would not be of too different a nature to act upon the tissues of the host.
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