SECT. 164.] THE PANCREAS. 357 



dren, rather than of adults. In children, particularly, the ramifications of the 

 hepatic artery copiously distributed in the serous covering, on the vessels 

 and elsewhere, have a fine appearance. The capillary network of the lobules 

 can bo readily injecteiL-with fine size, and a series of excellent injections, by 

 various masters of the art, is to be met with everywhere. 



Literature. — F. Kiernan, in Phil. Transact., 1833. E. II. Weber, Pro- 

 grammata Collccta Fasc, ii., Lips., 1851 ; also in MiiLLER's Archiv., 1843, 

 p. 318, and in the Berichte der K. Sachs. Ges. d. Wissensch. zu Leipzig, 1850. 

 p. 151. A. Krukenberg, in Muller's Archie., 1843. J. Muller, in his great 

 Work on the Glands, in his Physiology and in his Archives, 1843, P-338. 

 Theile, art. Leber, in R. "Wagner's llandxo. der Phys., ii., p. 308, 1844. C. L. 

 J. Backer, De Structurd Subtiliori Ilepatis Sani et Morbosi. Diss. Inaug. 

 Trajecti ad Rhenum, 1845. Natalis Guillot, Ann. d. So. Nat., 1848, p. 129. 

 A. Retzius, in MiiLL. Arch., 1849, P- J 54- C. Wedl, in Sitzungsber. d. Wiener 

 Akad., 1850, Dec, p. 480, c. Tab. N. Weja, in MiiLL. Arch., 1851, p. 79. 

 Lereboullet, Sur la Structure Intime du Foie, Paris, 1853 ; also in Compt. 

 Bend., 185a, Jan. A.Cramer, in Tijdschr. d. Nederl. Maatsch., 1853, Febr. 

 Gerlach, in Ecker, Icones, Tab. vii. Reichert, in the Jahrsbericht of 1855, 

 p. 77. Remak, Unters. z. Entw., p. 118. Rainey, in the Micros. Journ., i., 

 p. 231. Kolliker, in Wurtzb. Verh., vii. L. S. Beale, in Phil. Trans., 1856, and 

 On Some Points in the Anatomy of the Liver, London, 1856, and Archives of 

 Medicine, Lond., 1857, i., p. 21 — 34. Virchow, in his Archives, xi., p. 574. 

 Bergmann, in Gbtt. Anz., 1857, No. 101, 102. Nuhn, Ueber die Bildwng der 

 Leber, in Heidelb. Verh., ii., p. 39. E. v. Bibra, Chemische Fragmente iiber 

 Leber unci Galle, Braunschweig, 1849. The intimate structure of the Liver in 

 the lower animals is treated of by H. Karsten, in Nova Acta Acad. Cur., vol. 

 xxi., I., p. 295. T. F. G. Schlemm, De Hepate et Bile Crustaceorum et Molluscorum 

 quorundam, Diss. Berol., 1844. Williams, in Guy's Hosp. Rep., 1846. H. 

 Meckel, in Muller's Arch., 1846, p. 1. Fr. Will, Ueber die Absonderung der 

 Galle, Erlangen, 1849. H. Jones, in Phil. Transact, 1846, 1849, and 1853. 



VI. Op the Pancreas. 



§ 164. The pancreas is a compound racemose gland, which 

 agrees so very closely with the salivary glands, that a short de- 

 scription of its characters will suffice. As in all such glands, we 

 may very plainly distinguish larger, smaller, and still smaller 

 lobules. The ultimate lobules are composed of microscopical 

 glandular vesicles of moderate size (o - o2'" to o , 04" / ), and mostly 

 roundish in form. Here, as elsewhere, these vesicles have a mem- 

 /</ ri na propria and a pavement epithelium. The cells of this epi- 

 thelium contain a substance precipitable by acetic acid, and again 

 soluble in excess of the re-agent ; this is probably identical with 

 the protein substance of the pancreatic juice. The cells are fre- 

 quently remarkable for a multitude of fat granules, so that the 

 glandular vesicles appear quite dark, and as if completely filled 

 with cells. The excretory ducts are, as usual, connected with the 



