Graphic illustrations of abortion and the diseases of menstruation / Consisting of Twelve Plates from Drawings Engraved on Stone, and Coloured by Mr. J. Perry, and Two Copper-plates from the Philosophical Transactions, Coloured by the Same Artist. the Whole Representing Forty-five Specimens of Aborted Ova and Adventitious Productions of the Uterus, With Preliminary Observations, Explanations of the Figures and Remarks, Anatomical and Physiological.

by A. B. Granville

Fig. 10. Ovum pyriforme externe opacum.

(Eleven weeks after menstruation.)

None of the transparent involucra were visible in this Ovum, when, after excruciating and prolonged sufferings, it was expelled in the intact state here represented. The external or placental envelope invests the entire Ovum, and explains the cause of the abortion. The artist has seized with much felicity the uneven and almost cribriform surface of the fleshy envelope, exhibiting numerous orifices, through which its adherence to the uterine vascular lining, resulting from the act of fecondation, was effected.