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The vesicula prostatica, which has been observed in many male mammals, is now universally acknowledged to be the homologue of the female uterus, together with the connected passage. It is impossible to read Leuckart's able description of this organ, and his reasoning, without admitting the justness of his conclusion.
These corresponding parts are called, in the technical language of anatomy, "homologous parts." The ring of the third division is the "homologue" of the ring of the fifth, the appendage of the former is the homologue of the appendage of the latter. And, as each division exhibits corresponding parts in corresponding places, we say that all the divisions are constructed upon the same plan.
Even here in Aberdeen, though the causes at work may have been somewhat different, the effects have been similar; and you see how much more substantial an entity is the Very Reverend the Principal, analogue, if not homologue, of the Principals of King's College, than the Rector, lineal representative of the ancient monarchs of the University, though now, little more than a "king of shreds and patches."
When present, the great nerve invariably passes through it; and this clearly indicates that it is the homologue and rudiment of the supra-condyloid foramen of the lower animals. Prof. Turner estimates, as he informs me, that it occurs in about one per cent. of recent skeletons.
Furthermore, the microscope reveals cyclic changes in its cells comparable to the menstrual phenomena of the uterus. Indeed it is accepted as the homologue or male representative of the uterus. Small and undeveloped during childhood, its growth at puberty parallels that of the other reproductive organs. Its secretion has been shown to be necessary to the vitality of the sperm cells.
Vesicula prostatica, the homologue of the uterus. Vibrissae, represented by long hairs in the eyebrows. Vidua. Vidua axillaris. Villerme, M., on the influence of plenty upon stature. Vinson, Aug., courtship of male spider; on the male of Epeira nigra. Viper, difference of the sexes in the. Virey, on the number of species of man. Virtues, originally social only; gradual appreciation of.
The rectangular figure, with serrated lower edge and inclosed terraced figures, finds, however, a homologue in the heads and bodies of most of the representations of birds which have been described.
Moreover, in the ray, besides the organ just referred to, there is, as Dr. R. McDonnell has shown, another organ near the head, not known to be electrical, but which appears to be the real homologue of the electric battery in the torpedo.
Tons of uranium residues have to be treated in order to obtain a few decigrammes of pure salts of radium. Radium is characterised by a special spectrum, and its atomic weight, as determined by Madame Curie, is 225; it is consequently the higher homologue of barium in one of the groups of Mendeléef.
These corresponding parts are called, in the technical language of anatomy, "homologous parts." The ring of the third division is the "homologue" of the ring of the fifth, the appendage of the former is the homologue of the appendage of the latter. And, as each division exhibits corresponding parts in corresponding places, we say that all the divisions are constructed upon the same plan.
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