66 THE CONNECTIVE TISSUES, BY A. ROLLETT. 



conjunct! va, the tissue of the conjunctiva itself, and the nasal 

 portion of the pharynx in man this retiform tissue has been 

 accurately described by Billroth,* Eckhard,-)- Heidenhain ,J His 

 Frey, || Henle,1T Stieda,** and Luschka.-f~f- The meshes of the 

 network are in all these instances filled with cells resembling 

 those of the lymph in various stages of development. The 

 network and the lymphoid cellular elements have been collec- 

 tively designated adenoid tissue by His, and cytogenous con- 

 nective tissue by Kolliker. The trabeculae of the reticulum 

 may be observed also to traverse the larger cavities of these 

 glandular structures. 



In the fresh condition, the reticulum is soft and easily torn. 

 It can only be exhibited in its integrity by carefully brushing 

 fine sections of the hardened tissue with a camel-hair pencil 

 (His), by which means the adhering lymphoid cells can be 

 removed. A delicate network remains behind, composed of 

 nucleated cells which enclose rounded or polygonal areolse. 

 The trabeculae of this network proceed from a substance sur- 

 rounding, and somewhat thicker than the nucleus, which may 

 be regarded as the body of one of the stellate cells from which 

 the trabeculse are derived. The trabeculse to which such a 

 cell may be referred as a nodal point, or common point of 

 union, are either simple, and join with similar processes given 

 off from neighbouring cells, or first give off a series of still finer 

 trabeculse, which then communicate with each other. 



* Miiller's Archiv, 1857, p. 88, \. Beitragezur Pathologischen Histologie, 

 "Essays on Pathological Histology." Berlin, 1858, p. 126. Virchows 

 Archiv, Band xx., p. 409; and Band xxiii., p. 457. Zeitschrift filr wissen- 

 schaftliche Zoologie, Band xi., p. 325. 



f De glandularum Lymphaticarum Structura. Berlin, 1858. 



J Reichert and Du Bois' Archiv, 1859, p. 460. 



Zeitschrift filr wissenschaftliche Zoologie, Band x., p. 333, v. Band xi., 

 p. 416. 



|| Untersuchungen ilber die Lymphdrilsen des Menschen und der Sailge- 

 thiere, " Researches on the Lymphatic Glands of Man and Mammals." 

 Leipzig, 1861. Zeitschrift fur wissenschaftliche Zoologie, Band xii., p. 336, 

 and Band xiii., pp. 1 and 28. 



^[ Handbuch der Systematische Anatomie des Menschen, Band ii., p. 702. 



** Archiv filr Mikroskopische Anatomie, Band iii., p. 360. 



ft Archiv filr Mikroskopische Anatomie, Band iv., p. 1. 





