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As he had said, "according to the immortal atavism of man." With her ordinary work-a-day intelligence, she felt that the stars could not possibly be concerned in our miserable existence.
Suffice to say, that occasional crosses between species do occur, and not even rarely, that they are easily recognized as such and cannot be confused with cases of atavism, and that therefore they give proof to the assumption that in the same way crosses ordinarily occur also between varieties of the same species, if cultivated at small distances apart, say 40-50 meters or even more.
Besides the Sisymbrium some six other genera afford similar structures. Erucastrum pollichii has been already alluded to in a former lecture when dealing with the same problem from another point of view. As previously stated, it is one of the most manifest and most easily accessible examples of a latent character becoming active through systematic atavism.
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.
And while speaking of the mosques he said that he had had an ancestor who had fought in the crusades. Perhaps it was from him he had inherited his love and comprehension of Byzantine art he did not say so, but it might be so; one of the mysteries of atavism! Who shall say where they end? 'You would have liked to have fought in the crusades? 'Yes, I think that I should have made a good knight.
Selection thus ceasing to operate, a population arises which has not been exposed to the contagion, and of which a considerable proportion, under the common law of atavism, comes to be very much in the condition of a people invaded for the first time by the disease. To these, as we might expect, vaccination would prove a less safeguard than to their progenitors three or four generations before.
Were they openings to allow the spirit of the departed to revisit the body it had abandoned? or, to suggest a far more worldly and revolting motive, were they merely holes through which to pick out the brains of the dead. May not this be a case of atavism, or the transmission of a custom from one generation to another, for the origin of which we must go back to the most remote ages?
That degree of unselfishness once attained, further improvement would be checked by the mutual opposition of diverging moral tendencies and spontaneous variations in all directions. Added to which, we have the principle of reversion and atavism, tending powerfully to restore and reproduce that more degraded anterior condition whence the later and better state painfully emerged.
Then we sulked and made up. After that we ate the puppy. Raw? Yes. We had not yet discovered fire. Our evolution into cooking animals lay in the tight-rolled scroll of the future. Red-Eye was an atavism. He was the great discordant element in our horde. He was more primitive than any of us.
Then the characters of the atavistic branches should be minutely compared with those of the presumed ancestor; they may be quite identical with them or slightly divergent, as has been asserted in some instances. The atavism may be complete in one case, but more or less incomplete in others.
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