Issue 10, pp. 753-832, October 1861, SMSJ

L861.J Develop toftk Follicles of the Ovaries, £c. 8151>. They project1with their free surface , which is covered*withthe venous epithelium (the Bpleriic fibres of earlierauthors) into the cavities of the cavernous network ; themeshes, consisting of areolar tissue, go between the epithelialcells with the Malpighian bodies, ami become narrowerwithin them. On each Malpighian corpuscle, beneath thevenous epithelium, runs a small arterial vessel which becomeslost on its surface (in a tuft-like manner) in ;i great number ofcapillary twigs, many of which allow but a r.ingle blood corpuficleto pass. The capillary wsr-ols pass from the surfaceinto the interior of the Malpighian corpuscles, and becomelarger within, owing to the concurrence of many twigs. Aftertheir union in a central vein, this passes out into the surroundingcavernous network to embouchure into a larger vein.etiinee, hut rarely, Bmaller isolated veins also pass fromthese bodies in addition to the central vein. The larger centralvessels are evidently veins, not only from their emptyinginto larger veins, hut also from their walls being thinner thanthose of arteries, and from their having the characteristicepithelial cells of splenic veins on their inner surface. Thespace between the- meshes of the cavernous network in thesplenic corp: filled with white blood-corpuscles, whichonly appear to differ from those in the body generally by theirbeing smaller, and having a BOmewhat clearer outline. Thismay be from the deficiency of fluid. On ligaturing theinic artery of a t\'j:, and killing it some days afterwards, itwill he found that \\ic central vein of each splenic corpusclemay he seen with the naked eye as a red point on a whiteground, and the corpuscles appear enlarged. Moreover, thecentral vein may he seen very clearly in the spleen in c,wherein >oine time previous to death the sympathetic nerveaddressed to the spleen has been divided.— Ibid.•],, J'), /, loprru at of tin Follicli 8 of //>> Ovarii a and of tinOvum in tl- mammalia. By Otto Spiegelberg.The following ations were conducted n the humanenduy... a- well a- on the embryonic and newly-born rabbits,The author was unable t'«» recognise thetKon: Ges : der Wiss. zu Gottiu i,Juli, No. 20; aa quoted inVirchow'fl Arohiv. Band rx. I!. 210.