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. 13. Ovum semi-coriaceum.

(Nine weeks after menstruation?)

The external covering has been laid open. It is thick and fleshy. A second or inner covering is observed equally dense in texture and opaque; and a third involucrum, lying over the secreting membranes, (which are seen through a wide slit, bearing at their upper portion the filiform vessels,) is not only thick, like the second involucrum, but is actually seen passing from the transparent into the dense and opaque texture. The artist has portrayed this circumstance most accurately in his engraving. The placental cotyledons are at the posterior part of the figure, mossy, in groups, and some of them covered with their membrana propria. The embryo of this, and of Ovum 15, are not visible.

There can be little doubt but that intro-uterine inflammation, extended to the involucra of the Ovum, has produced, first, its morbid change of structure, and lastly, its early expulsion from the womb.