. La cyclopaedia d'anatomie et physiologie. Anatomie ; physiologie ; Zoologie. Ovule. 57 Fig. 41.. Rapport de l'ova et ovaires dans Mammalia. A. (à partir de la Coste, réduit par Longet.) Les droits de l'ovaire, quatre diamètres élargie, partiellement disséqué à ooo, pour montrer les follicules de De Graaf dans le stroma ovarien : l'une de ces, plus avancée", a eu son double tunique, o v, coupé en et reflétée ; la membrane granulaire, m g, a également été partiellement ouvert, montrant la partie épaissie ou granulaire, disque dg, dans lequel l'ovule est ancré à proximité de la plus partie en saillie. À o V, un autre follicule de Graaf a être

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. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. OVUM. 57 Fig. 41.. Relation of the ova and ovaries in Mammalia. A. (From Coste, as reduced by Longet.) Human ovary, enlarged four diameters, partially dissected at ooo, to show the Graafian follicles in the ovarian stroma: one of these, more advanced", has had its double tunic, o v, cut into and reflected; the granular membrane, m g, has also been partially opened, showing the thickened portion or granular disc, dg, in which the ovum is imbedded near the most projecting part. At o V, another Graafian follicle has been burst, and the ovum in its granular disc is seen expelled from it. u. Transverse section of human ovary, to show the general arrangement of the developed Graafian follicles towards the surface; twice the natural size. c. Diagrammatic representation, in section, of two^Graafian follicles, in different stages of advance- ment in the ovary of a mammifer, enlarged about ten diameters, p. Peritoneal covering of the ovary, st, ovarian stroma; ov, the two layers of the ovisac; mg, membrana granulosa, near which is the discus granulosus, with the ovum imbedded. stroma ; and it has been observed, that these are present from a very early period in the ovaries, as first noticed by Carus, and since by myself and others in the child at birth. The more developed of these ovi-capsules are enclosed by a strong theca or membrane, consisting of two layers ; the external thinner and firmer, of a fibrous and vascular struc- ture, the internal thicker and softer, of a fibro-cellular structure and also of consider- able vascularity. The capsules are filled with a fluid nearly transparent, which coagulates under the action of heat ; and inside the theca, or lining it and covering the fluid, there is a layer of nucleated cells united together in the form of a soft, easily-lacerated membrane, somewhat like an epithelial lining of the cap- sule. It is in this cellular layer (tunica gra- nu/osa of Vo

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