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



angles to the muscularis niucosse, decussate with an adjoining 

 fasciculus, in order then first to break up, forming a kind of pocket 

 composed of smooth muscular fibres running perpendicularly to 

 the surface and embracing the several tubes. The number of mus- 

 cular fibres constantly diminishes towards the surface. When a 

 few muscular fibres extend as far as the epithelium, they bend in 

 a direction parallel to the surface, and are no longer capable of 

 being followed in the sub-epithelial tissue, or they run between 

 the fibres of fresh fasciculi, which here and there course in a 

 direction parallel to the surface beneath the epithelium. 



The submucous tissue which occupies the folds of the 

 mucous membrane resembles that of the oesophagus, and just 

 as the latter stands in relation with the septa of the muscularis 

 externa, and of the external fibrous layer, so it is here in rela- 

 tion with the peritoneal investment, with the septa of the 

 muscularis mucosse, and with the mucous layer itself. 



The thickness of the submucous tissue in the stomach of the 

 newly born child amounts, in hardened preparations, upon 

 the average, to 0*35 of a millimeter. 



Lymph follicles, either in the form of glandulse lenticulares, 

 or aggregated into Peyer's patches, such as have been described 

 as occurring in the stomach by Frerichs,* Bruch/f- Bischoff,J and 

 Kolliker, I have been unable to discover in any of the animals I 

 have examined. It does indeed happen that certain portions of 

 the mucous membrane of adults is more strongly infiltrated with 

 corpuscles than others, but these spots have no definite limiting 

 membrane. They may project to some extent from the surface, 

 and may thus have given rise to the idea of their being proper 

 lenticular glands. 



In regard to the lymphatics of the stomach, we know from 

 the investigations of Teichmann,|| that in the dog they form a 

 superficial plexus lying beneath the csecal extremities of the 

 tubular glands, and a deeper plexus situated between the 

 muscularis mucosse and the muscularis externa, and conse- 



* Frerichs, loc. cit. 



t Bruch, Zeitschrift fur rationelle Medicin, Bandviii., p. 276. 



} Bischoff, loc. cit., Taf. xiv., fig. 4. 



Gewebelehre, p. 403. 



|| Teichmann, Das Saugader System, etc., a. a. 0. 



