The periodical maturation and extrusion of ova, independently of coitus, in mammalia and man, proved to be the primary condition to their propagation / Translated from the German by Henry Smith.

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The periodical maturation and extrusion of ova, independently of coitus, in mammalia and man, proved to be the primary condition to their propagation / Translated from the German by Henry Smith. Public Domain Mark. Source: Wellcome Collection.