The Need for Eugenic ReformAppleton, 1926 - Всего страниц: 529 |
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Стр. 16
... offspring will on the average show the recessive trait ; this being one of the first facts which attracted Mendel's attention in his garden - pea experiments . On the other hand , if both parent houses contained pairs of two blue bricks ...
... offspring will on the average show the recessive trait ; this being one of the first facts which attracted Mendel's attention in his garden - pea experiments . On the other hand , if both parent houses contained pairs of two blue bricks ...
Стр. 19
... offspring often regress somewhat more than half - way towards the mean of the whole popu- lation . And here Galton gave us the first enunciation of the laws of natural inheritance , laws of immense import- ance in making it possible to ...
... offspring often regress somewhat more than half - way towards the mean of the whole popu- lation . And here Galton gave us the first enunciation of the laws of natural inheritance , laws of immense import- ance in making it possible to ...
Стр. 20
... offspring , but also investigated those existing between persons otherwise related ; inquiries which have been much amplified in recent years by Professor Karl Pearson and his school . To take a single example , if the men selected for ...
... offspring , but also investigated those existing between persons otherwise related ; inquiries which have been much amplified in recent years by Professor Karl Pearson and his school . To take a single example , if the men selected for ...
Стр. 24
... offspring , the qualities of their ancestry being known . Galton indicated that looking only to any selected group of individuals there always exists at every generation a tendency to regress towards the mean , a tendency which is ...
... offspring , the qualities of their ancestry being known . Galton indicated that looking only to any selected group of individuals there always exists at every generation a tendency to regress towards the mean , a tendency which is ...
Стр. 25
... offspring are nearer to the mean than were the mean qualities of their parents , the Mendelian theory of inheritance forming a necessary part of the explanation . CHAPTER III HEREDITY AND ENVIRONMENT WHETHER heredity or environment is.
... offspring are nearer to the mean than were the mean qualities of their parents , the Mendelian theory of inheritance forming a necessary part of the explanation . CHAPTER III HEREDITY AND ENVIRONMENT WHETHER heredity or environment is.
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acquired differences advantages alcohol amongst animals appearance argument assortive mating average become believe beneficial benefits birth birth control birth-rate bricks cause certainly civilization classes conclusion connexion consequently consider consideration contraceptive correlation crime criminal cuckoo dependent descendants doubt dysgenic endowed environment environmental eugenic reform eugenist evil evolution evolutionary existing fact factor family limitation favour feeble-in-mind fertility future genes genius germ plasm harmful hereditary heredity homozygous human improve inborn qualities individuals inferior infertility influences inheritance of acquired innate qualities insanity Karl Pearson Lamarckian large number less fit lessen marriage mate selection mental defect methods moral nation natural inheritance natural selection offspring parenthood parents persons physical population possible posterity probably produce promote question R. A. Fisher race racial effects racial poison rate of multiplication reason recessive genes regard relative result segregation sexual selection social sterilization strata stratum superior surroundings syphilis tend tion types venereal diseases wages whilst whole
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Стр. 4 - It is interesting to contemplate a tangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, and dependent upon each other in so complex a manner, have all been produced by laws acting around us.
Стр. 182 - Feeble-minded persons;* that is to say, persons in whose case there exists from birth or from an early age mental defectiveness not amounting to imbecility, yet so pronounced that they require care, supervision, and control for their own protection or for the protection of others, or, in the case of children, that they by reason of such defectiveness appear to be permanently incapable of receiving proper benefit from the instruction in ordinary schools...
Стр. vii - Our doubts are traitors, And make us lose the good we oft might win, By fearing to attempt.
Стр. 4 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.
Стр. 305 - Britain, on the average three were perfectly fit and healthy; two were upon a definitely infirm plane of health and strength, whether from some disability or some failure in development; three were incapable of undergoing more than a very moderate degree of physical exertion and could almost (in view of their age) be described with justice as physical wrecks; and the remaining man as a chronic invalid with a precarious hold upon life.
Стр. 53 - The hedge-sparrow fed the cuckoo so long, That it had its head bit off by its young.
Стр. 305 - These four inferences may be summarized by saying that medical examinations showed that, of every nine men of military age in Great Britain, on the average three were perfectly fit and healthy; two were upon a definitely infirm plane of health and strength, whether from some disability or...
Стр. 298 - ... are so physically or mentally defective ' or diseased as to be unable to derive reasonable benefit from ' the education which the State provides.
Стр. 220 - A devil, a born devil, on whose nature Nurture can never stick ; on whom my pains, Humanely taken, all, all lost, quite lost ; And as, with age, his body uglier grows, So his mind cankers.
Стр. 45 - The operation of the preventive check — wars — the silent though certain destruction of life in large towns and manufactories, and the close habitations and insufficient food of many of the poor, prevent population from outrunning the means of subsistence...