A textbook of obstetrics . Fig. 54.—Formation of polar bodies in ova of Asterias glacialis: ps, Polarspinale ; pb, first polar body; pb,/J second polar body; n, nucleus returning tocondition of rest (Hertwig . may begin before menstruation, may cease before the menopause,or possibly may continue after it. A young girl has been im-pregnated as early as the ninth year. In the child-marriages of.

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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics