Fecundity, fertility, sterility and allied topics / by J. Matthews Duncan.

  • Duncan, J. Matthews (James Matthews), 1826-1890.
Date:
1871
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Licence: Public Domain Mark

Credit: Fecundity, fertility, sterility and allied topics / by J. Matthews Duncan. Source: Wellcome Collection.

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    exagere du foetus, surtout chez une femme dont le bassin aurait des proportions mediocres. Dans ces circonstances on pourrait poser avec Silbert (d'Aix), la question de Taccoucliement provoque. C'est un point pratique qui merite Tattention/' There is a large field here open for research, not only as to the connection of protracted pregnancy with development of the child, but on the connection of the age of the mother and of the number of the pregnancy with the duration of the process and the development of the resulting progeny—topics on which I have niade some remarks in an earlier part of this volume (see page 65), and to which Frankenhoeuser * has made a valuable contribution, which supports by statistics the view which I maintain. The evidence of highest value which we possess in regard to the subject of the extraordinary prolonga- tion of pregnancy is founded upon cases where preg- nancy resulted from a single, or is counted from a last, coitus. The results of these cases go far to establish the well-founded opinion of Dr. Montgomery, that the cases most deserving of confidence are those in which the usual term was not exceeded by more than three or four weeks. But the cases referred to give us the interval between insemination and parturition, a period which I have elsewhere remarked requires a correction, which physiology has not yet enabled us to decide, for the possible interval between insemination and concep- tion. In a practical and medico-legal point of view, * Jenaische Zeitschrift fur Medicin, etc., 1867, § 185. 2 H