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Updated: June 1, 2025
The nucleus of the tube-cell has meanwhile passed into the tube, as does also the generative nucleus which divides to form two male- or sperm-cells. The male-cells are carried to their destination in the tip of the pollen-tube. Pistil and embryo-sac. The ovary contains one or more ovules borne on a placenta, which is generally some part of the ovary-wall.
There was subsequently at attack of inflammatory fever, followed by tumefaction of the abdomen, convulsions, and death on the ninth day. The fetus had been contained in the peritoneal coat of the ovary until the fourth month, when one of the feet passed through the cyst and caused the fatal result.
Signs of acute peritonitis were seen postmortem, the abdominal cavity was full of blood, and the ovary much lacerated.
The presence or absence of endosperm, its relative amount when present, and the position of the embryo within it, are valuable characters for the distinction of orders and groups of orders. Meanwhile the ovary wall has developed to form the fruit or pericarp, the structure of which is closely associated with the manner of distribution of the seed.
What is sexual about them is firstly, that they are normally fully developed only in the female, rudimentary in the male; secondly, that their periodical development and functional activity depends on the changes which take place in the ovary and uterus. Many investigators have endeavoured to discover the nature of the nexus between the latter organs and the milk glands.
The leaves are green and smooth as yet, with many a fantastic bloom, and many an ovary that has just begun to swell, rising amidst the verdure. Each flower spike which has been crossed carries its neat label, registering the father's name and the date of union. Mr. Maynard takes the two first virgin blooms to hand: Cypripedium Sanderianum, and Cypripedium Godefroyæ, as it chances.
Again in this period of increasing speed in the expenditure of energy we find the thyroid, the adrenals, and the hypophysis also in rapid growth. Without the normal development of the ovary, the thyroid, and the hypophysis, neither the male nor the female can develop the secondary sexual characters, nor do they develop sexual desire nor show seasonal cycles of activity, nor can they procreate.
Another question often asked concerning the bird is, "Would the egg be laid if it were not fertilized?" It might be or it might not. In all forms of life the sensitive reproductive system responds with peculiar readiness to its environment. In birds if it does not receive the stimulus that comes from mating, the ova may not develop at all, but remain small and attached to the ovary.
Now, if in the castrated male is transplanted an ovary, the positive characteristics of the female are evoked, such as enlarged mammary glands, and a tendency to secretion of milk. Experiments have also been reported in which a uterus was also placed in such an animal, with a means of entry, and pregnancy followed.
On dissection both Fallopian tubes were found distended, and the left ovary, which bore signs of conception, was twice as large as the right. Campbell quotes another such case in a woman of thirty-eight who for twenty years had practised her vocation as a Cyprian, and who unexpectedly conceived.
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