566 THE INTESTINAL CANAL, BY E. KLEIN AND E. VERSON. 



whilst towards their upper part, especially above the muscu- 

 laris mucosse, the lateral boundaries disappear. 



When examined with the microscope, these bodies present a 

 remarkable similarity in structure to the so-called medullary 

 cords of the lymphatic glands, and have recently even been 



Fig. 108. 



mrr 



Fig. 108. Longitudinal section of the small intestine of a Rabbit, z z, 

 villi; j, crypts ; P, a Peyer's patch ; K, cap of a follicle ; S, submucosa ; 

 m m, muscularis mucosse ; R, circular muscular layer ; L, longitudinal 

 muscular layer ; p, peritoneum. 



regarded, in accordance with the views of Ziegler and Briicke, as 

 really belonging to the system of lymphatic glands. However 

 delicate a section may be that is made through a follicle, only an 

 irregular accumulation of cells can be recognised ; but if these be 

 removed by pencilling with a camel-hair brush, or, still better, 



