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And even this latency is not a complete one, as little scales remind us of the leaves, and traces of chlorophyll still exist in the tissues. Numerous other cases will present themselves to every practical botanist.
Hitherto we have dealt with negative characters and tried to prove that the conception of latency of the opposite positive characteristics is a more natural explanation of the phenomenon than the idea of a complete loss. We have now to consider the positive varieties, and to show that it is quite improbable that here the species have struck out for themselves a wholly new character.
I will not amplify; but reversion to long-lost, or feral, characteristics, the phenomena of old age, the fact of the reproductive system being generally the last to arrive at maturity few further developments occurring in any organism after this has been attained the sterility of many animals in confinement, the development in both males and females under certain circumstances of the characteristics of the opposite sex, the latency of memory, the unconsciousness with which we grow, and indeed perform all familiar actions, these points, though hitherto, most of them, so apparently inexplicable that no one even attempted to explain them, became at once intelligible, if the contentions of "Life and Habit" were admitted.
Every person who touches us even in the slightest degree, is drawn by the law of attraction because we need him to bring out some latency in ourselves, and because HE needs us to help develop some latency in him. "Oh, but that can't be," you exclaim, "because So-and-So brings out only the evil in me. He makes me feel so hateful and mean." Let us see, dearie.
From this we can infer, that in the crossing of varieties, no unpaired remainder is left, all units combining in pairs exactly as in ordinary fertilization. Setting aside the contrast between activity and latency in this single pair, the procedure in the inter-crossing of varieties is the same as in ordinary normal fertilization.
Of course it was not possible to ascertain from which variety the plant had really originated, but the reproduction of any one clearly defined varietal mark is in itself proof enough of their origin, and of the latency of the dark brown flower-color in this special case. A still better proof is afforded by a new type of green dahlia.
Its second phase, of close development, drew toward an end. Subtle underlying forces began to stir in their portentous latency. The rapiers which thus far had merely touched, shivering lightly against each other, measuring each its opponent's strength, feeling out his skill, fell apart, then re-engaged in sharp and deadly play.
Throughout the latency period the child learns to love other persons who assist it in its helplessness and gratify its wants; all this follows the model and is a continuation of the child's infantile relations to his wet nurse.
They remain stored up in latency and are ready to spring into activity as soon as the depths of the mind are probed. Necessarily this experience is more generally interesting than pleasant, but it serves to give one a sense of the connectedness of life's incident and to show a certain sequential necessity in the course of events.
Such a return to activity was formerly called atavism. But as we have seen, when dealing with the phenomena of latency at large, sundry cases of latency are to be distinguished, in order to get a clear insight into these difficult processes. So it is with atavism, too. If any plant reverts to a known ancestor, we have a positive and simple case.
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