Consanguineous Marriages: Their Effect Upon Offspring (Classic Reprint) 9781397321411

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Автор: Withington Charles F.
Название: Consanguineous Marriages: Their Effect Upon Offspring (Classic Reprint)
ISBN: 9781397321411
Издательство: Forgotten Books
Классификация: ISBN-10: 1397321415
Обложка/Формат: Paperback
Страницы: 38
Вес: 0.06 кг.
Дата издания: 12.02.2019
Язык: English
Размер: 22.86 x 15.24 x 0.20 cm
Поставляется из: США
Описание: Excerpt from Consanguineous Marriages: Their Effect Upon Offspring

Now this statement is very explicit, to the effect that be sides the ordinary laws of inheritance which may affect offspring for good or for bad, there is in marriages of rela tions a specific degenerative inﬂuence, due to the mere fact of non-renewal of the blood. If this be true, it follows that the operation of this inﬂuence Will be equally potent and baneful when the persons united are healthy as when they are diseased. And there should be discoverable among the offspring of such unions a conspicuous deterioration, out of all proportion to those other hereditary inﬂuences whose potency is so well established. Indeed it is difficult to see why, if this supposition be true, we should not find some evidence of degeneration present as the rule in all the per sons born from marriages of relations, inasmuch as in all these cases by the hypothesis this specific cause of degenera tion is present. Whether this is the fact, has been made the subject of inquiry by many investigators, but with results so utterly diverse as to leave the student more bewildered than ever, and to suggest that in no field of investigation has the statistical method more pronounced limitations than in this. In a paper like the present we can only allude in the brief est manner to some of the most important collection of cases illustrating the opposite views on this question.

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Consanguineous Marriages: Their Effect Upon Offspring (Classic Reprint), Withington Charles F.