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The Influence of the Age of the Parent at Birth of Child on Eye-Colour, Stature and Intelligence

Published online by Cambridge University Press:  15 May 2009

R. J. Ewart
Affiliation:
Medical Officer of Health, Barking Town, E.
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We have already considered, in previous papers, the influence of parental age, on birth, marriage, sex, susceptibility, and reaction to bacterial invasion, evidence having been produced which lends support to the belief that this factor does modify the organism in its behaviour with respect to the attributes considered. It is therefore reasonable to extend the enquiry, and examine whether these variations are accompanied by modifications in structural attributes. In the present paper the characters studied are, eye-colour, stature and intelligence.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1917

References

Alder, J. E., and McIntosh, J. (1909). Histological examination of a case of Albinism. Biometrika, VII. 237.Google Scholar
Ansell, C. H. (1874). Statistics of Families. London.Google Scholar
Blanchard, N. (1902). On the Inheritance of Coat Colour of Thoroughbred Horses. Biometrika, II. 361.CrossRefGoogle Scholar
Budin, P., and Ribemont, A. (1897). Recherches sur les dimensions de la tête de foetus. Archives de Zoologie. Paris.Google Scholar
Ewart, R. J. (1910). The Influence of Parental Age on Offspring. The Eugenics Review, III. 3, 209.Google Scholar
Ewart, R. J. (1914). The Influence of the Age of the Parent on the Vitality of the Child. A First Study. Journal of Hygiene, XIV. 453480.Google Scholar
Ewart, R. J. (1915). The Influence of the Age of the Grandparent at the Birth of the Parent on the number of children born and their sex. Journal of Hygiene, xv. 127162.Google Scholar
Ewart, R. J. (1916). The Influence of the Age of the Parent at the Birth of Off-spring on the Age at which they are attacked by some of the Zymotic Diseases, with special reference to the Epidemiology of Scarlet Fever. Journal of Hygiene, XV. 208256.CrossRefGoogle Scholar
Fourman, F. (1901). Wovon ist day Gewicht der Neugeborenen abhängig. Inang. Dissert., Bonn, p. 42.Google Scholar
Gini, Corrado (1911). The Contributions of Demography to Eugenics. Problems in Eugenics (Eugenic Education Society, London), II. 107.Google Scholar
Galloway, A. R. (1911). Notes on the Pigmentation of the Human Iris. Biometrika, VII. 267.Google Scholar
Pearson, K., Nettleship, E., and Usher, E. H. (1913). A Monograph of Albinism in Man. Part II. p. 272.Google Scholar
Pearson, K. (1899). Data for the Problem of Evolution in Man. III. On the Magnitude of Certain Coefficients of Correlation in Man, etc. Proc. Roy. Soc. LXVI. 2332.Google Scholar
Pearson, K. (16. VIII. 1900). Mathematical Contributions, etc. VII. On the Correlation of Characters not Quantitatively Measurable. Phil. Trans. A, CXCV. 147.Google Scholar
Pearson, K., and Alice, Lee (29. X. 1900). Mathematical Contributions, etc. VIII. On the Inheritance of Characters not Capable of Exact Quantitative Measurement. Phil. Trans. A, CXCV. 79150.Google Scholar
Pearson, K. (and others) (12. XII. 1901). Mathematical Contributions, etc. IX. On the Principle of Homotyposis and its Relation to Heredity, to the Variability of the Individual and to that of the race. Phil. Trans. A, CXCVII 443459.Google Scholar
Pearson, K. (1901). On the Inheritance of the Mental Characters of Man. Proc. Roy. Soc. LXIX. 153155.Google Scholar
Pearson, K. (1906). On a Novel Method of Regarding the Association of two Variables Classed Solely in Alternate Categories. Dulau.Google Scholar
Pearson, K. (II. 1903). The Law of Ancestral Heredity. Biometrika, II. 211228.Google Scholar
Prinzing, (1906). Handbuch der medizinischen Statistik, pp. 55, 56. Jena: Fischer.Google Scholar
Rapport préliminaire de la Commission statistique de fonctionnaires (1908). No. 10. Paris: Imprimerie Nationale.Google Scholar
Urchida—Gorizo, (1904). On the Correlation between Eye Colour and the Colour of the Hair and Eyes of Man. Biometrika, III. 462.Google Scholar
Vierordt, H. (1906). Anatomische physiologische und physikalische Daten und Tabellen, p. 21. Jena: Fischer.Google Scholar
Westergaard, (1901). Die Lehre von der Mortalität und Morbidität, pp. 305343. Jena: Fischer.Google Scholar