Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 10, 2025
The whole central marrow is merely a simple cylindrical cord which runs the length of the body, and ends equally simply at both extremities a plain medullary tube. All that we can discover is a small vesicular bulb at the foremost part of the tube, a degenerate rudiment of a primitive brain.
We have in both cases the reduplication of parts, the effects of long-continued use, and so forth. The frequent presence of rudiments, both in languages and in species, is still more remarkable. The letter m in the word am, means I; so that in the expression I am, a superfluous and useless rudiment has been retained.
As regards the wrist of man, a curious prediction that a certain bone found in some of the lower animals, the os centrale, would be found in man has been made and verified, it being discovered as a very small rudiment in the human embryo. The tail, so common a feature in the lower animals, but absent from the higher apes and from man, has not vanished without leaving its traces.
The first attempts to sing "may be compared to the imperfect endeavour in a child to babble." The young males continue practising, or as the bird-catchers say, "recording," for ten or eleven months. Their first essays shew hardly a rudiment of the future song; but as they grow older we can perceive what they are aiming at; and at last they are said "to sing their song round."
Here we are not concerned with the vestige of a part which does not belong to the species in an efficient state, but with a part efficient in the one sex, and represented in the other by a mere rudiment. Nevertheless, the occurrence of such rudiments is as difficult to explain, on the belief of the separate creation of each species, as in the foregoing cases.
In fact, the squid has, instead of any such shell, a horny "pen," the cuttlefish has the so-called "cuttle-bone," and the octopus has no shell, or, at most, a mere rudiment of one.
He affected to be, and really thought he was, humble. Whereupon Adrian, as by accident, imparted to him the fact that men were animals, and he an animal with the rest of them. "I an animal!" cries Richard in scorn, and for weeks he was as troubled by this rudiment of self-knowledge as Tom by his letters. Sir Austin had him instructed in the wonders of anatomy, to restore his self-respect.
The air, once "filled with pleasant noise of waters," was silent as death. It took me the whole day to reach the patch, which I found indeed a forest but not a rudiment of brook or runnel had I crossed! Yet through the glowing noon I seemed haunted by an aural mirage, hearing so plainly the voice of many waters that I could hardly believe the opposing testimony of my eyes.
Thus, in the case before us, it is unquestionable that the first rudiment of the eye is found in the pigment-spot of the lower organisms; this spot may indeed have been produced physically, by the mere action of light, and there are a great number of intermediaries between the simple spot of pigment and a complicated eye like that of the vertebrates.
Just as to-day the intricate structure of the brain proceeds step by step from the same rudiment in every human individual the same five cerebral vesicles as in all the other Craniotes; so the human soul has been gradually developed in the course of millions of years from a long series of craniote-souls.
Word Of The Day
Others Looking