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Updated: May 10, 2025
A mere tendency to produce a rudiment is indeed sometimes thus inherited.
It is stouter in form, of a nearly black colour, with a yellow ring at the base of the abdomen; the wings have dusky stripes, and the head is compressed and dilated laterally, with very small flat horns; which are black with a pale centre, and look exactly like the rudiment of the horns of the two preceding species. None of the females have any trace of the horns, and Mr.
Sometimes a rudiment of a fifth toe appears to be traceable. The teeth of a horse are not less peculiar than its limbs. The living engine, like all others, must be well stoked if it is to do its work; and the horse, if it is to make good its wear and tear, and to exert the enormous amount of force required for its propulsion, must be well and rapidly fed.
Milk glands, then, are somatic sex-characters common to a whole class, instead of being restricted to a family like the antlers in Cervidae. There is not the slightest trace or rudiment of them in other classes of Vertebrates, such as Birds or Reptiles.
There is a quite secondary difference, on which great stress has wrongly been laid, in the fact that in man and the higher apes the original cavity of the allantois quickly degenerates, and the rudiment of it sticks out as a solid projection from the primitive gut.
Now because there are some in the world who are eager to investigate even the primitive form of man, which is seed from the father, from which conception is effected, and because many of these have fallen into the error of thinking that man is in his fullness from his first, which is the rudiment, and is afterwards perfected by growth, it has been disclosed to me what that rudiment or first is in its form.
Right-hand figure, female. a. Rudiment of cephalic horn. b. Judging from other insects, these may aid the male in clinging to the female. The old belief that rudiments have been created to complete the scheme of nature is here so far from holding good, that we have a complete inversion of the ordinary state of things in the family.
From these considerations it is evident that the love of the sex is not the origin of love truly conjugial; but that it is its first rudiment in respect to time, yet not in respect to end; for what is first in respect to end, is first in the mind and its intention, because it is regarded as primary; but to this first there is no approaching unless successively through mediums, and these are not first in themselves, but only conducive to what is first in itself.
And, most important of all, Professor Marsh has discovered a series of mammalian remains, occurring in successive geological epochs, which are held to represent beyond cavil the actual line of descent of the modern horse; tracing the lineage of our one-toed species back through two and three toed forms, to an ancestor in the eocene or early tertiary that had four functional toes and the rudiment of a fifth.
Or the corresponding ganglion of the mollusca and crustacea may be regarded as the rudiment of a brain; the superior organ thus appearing as only a farther development of the inferior.
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