SECTION OF THE THYMTJS BODY. 179 



mono nucleated cells, (c) Still larger multinucleated cells. 



(d) Larger though varying in size spherical bodies, Hassall's 

 corpuscles. (These are composed of epithelioid cells, arranged con- 

 centrically, and are unlike any other structure found in the normal 

 tissues of the body. They resemble very closely the smaller " brood 

 nests " of epithelial cancer. ) (e) Small thin- walled venules. 



