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These little animals, during a very considerable part of their existence, multiply themselves by means of a kind of internal budding, the buds being developed into essentially asexual animals, which are neither male nor female; they become converted into young 'Aphides', which repeat the process, and their offspring after them, and so on again; you may go on for nine or ten, or even twenty or more successions; and there is no very good reason to say how soon it might terminate, or how long it might not go on if the proper conditions of warmth and nourishment were kept up.
The multiplication of plants by bulbs and layers clearly comes under this head, nor will any essential difference be felt between one kind of asexual generation and another; if, then, the offspring formed by bulbs and layers is in one sense part of the original plant, so also, it would appear, is all offspring developed by asexual generation in its manifold phrases.
And for the sake of clearness what I am concerned to show is that a woman is not necessarily asexual or cold because she will not use an appeal to sexuality in order to get what she wants. She may have all the "temperament" in the world, but she has also self-respect, and she revolts from the idea of exploiting for advantage what should be sacramental.
Sectional variation may be looked at as a special type of bud-variation, and from this point of view we may simplify our inquiry and limit ourselves to the inheritance of three types, the striped plants, the red plants and the red asexual variants of the striped individuals. In each case the heredity should be observed not only for one, but at least for two successive generations.
The immense superiority of sexual reproduction over asexual reproduction is due to the fact that it multiplies so greatly the elements of heredity in each new organism, for under sexual reproduction every new organism has two parents, four grandparents, and so on, each of which perhaps contributes something to its heredity.
This is an asexual process, and from it results the repetition or reproduction of the form of the original being from which the bulb proceeds. Among animals the same thing takes place.
She whirled, cold and unfeeling, with the asexual hauteur of a rude virtue, fleeing from his springing and contortions, presenting her back to him with a gesture of scorn, while his fatiguing duty consisted in placing himself ever before her eyes, obstructing her path, coming out to meet her so that she should see and admire him.
This second brood brings forth in like manner a third generation, asexual, as before; and the same process is repeated without intermission as long as the warm weather lasts. In each case, the young simply bud out from the ovaries of the mothers, exactly as new crops of leaves bud out from the rose-branch on which they grow.
Let us suppose Hyaenas to have preceded Dogs, and to have produced the latter in this way. Then the Hyena will represent A, and the Dog, B. The first difficulty that presents itself is that the Hyena must be asexual, or the process will be wholly without analogy in the world of Agamogenesis.
Some flowers and garden-plants afford further instances. By far the greatest majority of improved asexual varieties, however, are not the result of pure intra-specific selection. They are due largely to the choice of the best existing elementary species, and to some extent to crosses between them, or between distinct systematic species.
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