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Considering the various stems of plants, which multiply themselves by runners or by buds on the roots, the assertion is in no need of further proof. The same holds good for all cases of artificial multiplication by cuttings, or by other vegetative methods. But even if we limit ourselves to the leaves of a single tree, or the branches of a shrub, or the flowers on a plant, the same rule prevails.
One of the most dangerous effects of melancholy is, the gloomy pleasure it gives to every thing that serves to indulge it: darkness and solitude are its delight and nourishment, and the person possessed of it, naturally shuns and hates whatever might alleviate it; the sight of his best friends now became irksome to him; he not only loathed, but grew incapable of all business; he shut himself in his closet, shunned conversation, was scarce prevailed on to take the necessary supports of nature, and seemed as if his soul was buried in the tomb of his son, and only a kind of vegetative life remained within him.
The process of spore formation just described, it will be seen, is entirely non-sexual, being simply a vegetative process, analogous to the budding of higher plants, and the fission of some of the lower plants and animals.
Sometimes the episode goes further back than childhood, and one must assume an inherited conditioning of the vegetative and endocrine systems. An animal leaping upon an ancestor in a forest during the night might account for the panic fear some people experience when alone in the dark, that nothing of their childhood history may account for.
Without the vegetative system, the great complex of viscera in the abdomen and chest, blood and its vessels, endocrines, muscles and nerves, the brain would remain but an intricate cold storage plant of memories, associations of past experiences. It would need no change and initiate no effort.
And as we must look at the curious and complex laws governing the facility with which trees can be grafted on each other as incidental on unknown differences in their vegetative systems, so I believe that the still more complex laws governing the facility of first crosses, are incidental on unknown differences, chiefly in their reproductive systems.
But although nature had to give up to him this care which she reserves exclusively to herself in those creatures which have only a vegetative life, still it was necessary that the satisfaction of so essential a want, in which even the existence of the individual and of the species is interested, should not be absolutely left to the discretion of man, and his doubtful foresight.
Yet they have directly opposed effects upon the economy because they act upon antagonistic portions of the involuntary or vegetative nervous system, the system which is independent of the will. Before proceeding further, it is worth while sketching this division of the nervous system.
The relative ratios of tonus in these smaller internal secretion balances are of the utmost significance as causes of differences in the vegetative apparatus, which are the basis of differences in structure, power, and character between individuals.
Hence the splendor of the vegetative soul is undoubtedly brighter than that of the sphere, which comes from its shadow. The latter becomes rigid and assumes a covering, thickness and corporeality so that it can be perceived by sight.
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