Carpenter's principles of human physiology . ovarian struc-tures, the corpora lutea. * Parkes, Med. Times and Gaz., 1858, p. Kirkes, Med. Times and Gaz., 1857, p. 35; 1859, p. 30. See also Merkel in Cyclop, of Pract. Medicine, Amer. edit., vol. viii. 1878, p. Physiologie Humaine, 1876, p. 179.§ See Balfour in the Joum. of Anat., vol. xi. 1877, p. 698.|| For a good account of the development of the supra-renal capsules see A. v. Brunn, inSchultzes Archiv, Band viii. 1872, p. 618. *I Jendrassik, Sitzungsbericht d. Wien Akad., 1856, Band xxii. p. 75.** The presence of a ce
Carpenter's principles of human physiology . ovarian struc-tures, the corpora lutea. * Parkes, Med. Times and Gaz., 1858, p. Kirkes, Med. Times and Gaz., 1857, p. 35; 1859, p. 30. See also Merkel in Cyclop, of Pract. Medicine, Amer. edit., vol. viii. 1878, p. Physiologie Humaine, 1876, p. 179.§ See Balfour in the Joum. of Anat., vol. xi. 1877, p. 698.|| For a good account of the development of the supra-renal capsules see A. v. Brunn, inSchultzes Archiv, Band viii. 1872, p. 618. *I Jendrassik, Sitzungsbericht d. Wien Akad., 1856, Band xxii. p. 75.** The presence of a central cavity is denied by Dahms. 214 OF ABSORPTION AND SANGUIFICATION. hollow (Figs. 98, 99). Each lobule is bounded externally by an indis-tinctly-fibrous membrane (Fig. 98, a), which sends prolongations (b)into its substance, that divide it into acini or gland-granules. Isolatedgland-granules of the same kind are frequently to be met with on themain canal (Fig. 98, c).* The several follicles consist of a cortical and a Fig. 98. Fig. Fig. 98.—Portion of Thymus of Calf, un-folded.—a, Main canal; 6, glandular lobules;c, isolated gland-granules seated on the maincanal. Fia. 99. — Section of Human Thymus,showing a cavity in the wide portion, andnumerous orifices leading to its lobular cavities. medullary portion, with a fine plexus of capillaries between them. Themedullary parts of two neighbouring follicles are often united, so that thisportion of the gland may perhaps be continuous throughout. Each follicle iscomposed of a reticulum of nucleated cells, and of cells. The reticular cellsof the cortical portion have a disk-shaped nucleus nearly filling the cell, andgive off long, fine-branching processes. The reticular cells of the medullaryportion have one or two nuclei, present cell-bodies two or three times largerthan the nucleus, and give off coarse, short processes. The medullary portionis also sometimes traversed by connective tissue trabecule. The free cellsare o
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