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Updated: May 8, 2025
The speaker dropped her voice, as she found herself moralising; and Lady Gray perceived that an atmosphere of tender speculation had risen around their conversation. She turned her face away, and looked over that part of the inheritable world which met her gaze.
Wallace should categorically deny that their effects were inheritable. On the other hand, the temptation to adopt Professor Weismann's view must have been overwhelming to one who had been already inclined to minimize the effects of use and disuse. On the whole, one does not see what Mr. Wallace could do, other than what he has done unless, of course, he changed his title, or had been no longer Mr.
Moreover, I find among physicians the belief that nervous disorders of a less severe kind are inheritable. Men who have prostrated their nervous systems by prolonged overwork or in some other way, have children more or less prone to nervousness.
The legislature plainly had in view the Act of Recognition of the first of Queen Elizabeth, chap. 3rd, and of that of James the First, chap. 1st, both acts strongly declaratory of the inheritable nature of the crown; and in many parts they follow, with a nearly literal precision, the words, and even the form of thanksgiving which is found in these old declaratory statutes.
This was the general condition of those inheritances which were derived from the right of original conquest, as well to all the soldiers as to the leader; and these estates, as it is said, were not even forfeitable, no, not for felony, as if that were in some sort the necessary consequence of an inheritable estate. So far were they from resembling a fief.
But there is no such body of men, led either by pecuniary interest or the interest of a hobby, to ascertain by experiments whether the effects of use and disuse are inheritable. Thus, then, there are amply sufficient reasons why there is a great deal of direct evidence in the one case and but little in the other: such little being that which comes out incidentally.
There is nothing to show that the inheritable portion of the full original thickness was not gained by natural selection rather than by the directly inherited effect of use; and the latter, being cumulative and indiscriminative in its action, would apparently have made the sole very much thicker and harder than it is.
The position taken must be this: Though mucous membrane in a highly-evolved individual organism, thus shows the powerful effect of the medium on its surface; yet we must not suppose that the medium had the effect of producing such a cell-structure on the surfaces of primitive forms, undifferentiated though they were; or, if we suppose that such an effect was produced on them, we must not suppose that it was inheritable.
The whole organisation seems to have become plastic, and departs in a slight degree from that of the parental type. Any variation which is not inherited is unimportant for us. But the number and diversity of inheritable deviations of structure, both those of slight and those of considerable physiological importance, are endless. Dr.
It does not make for the welfare of the children, or for the sanctity of marriage, that such wretched travesties of it should continue. Moreover, for eugenic reasons, we must urge the freeing of wives from husbands who have transmissible diseases, inheritable defects, or chronic alcoholism.
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