EXPLANATION OF PLATES XXI AND XXIl^contimed. 



Fig. 8. — From a horizontal sectiou through the corium of the scalp of the 



dog, whose lymphatics had been injected with Berlin blue ; showing 



the interfascicular lymph-spaces of the connective tissue of theoorium. 



I, in longitudinal ; i, in transverse and oblique view. Magnifying 



power about 350. 



Fig. 9. — From a horizontal section through the scalp of the dog; the 

 lymphatics had been injected with Berlin blue. Showing two hair- 

 follicles in transverse section. Magnifying power about 180. 



I, lymph-spaces of the hair-sac; v, lymphatic vessels of the surround- 

 ing connective tissue ; s, sweat-gland tube, also surrounded by lymph- 

 spaces. (See the text.) 



Fig. 10. — From a slightly oblique section through the mucous membrane 

 of the mouth of the rabbit. The lymphatics are injected with Berlin 

 blue. Magnifying power about 60. 



e, epithelium, the individual cells are not indicated ; p, papillary 

 layer and the superficial lymphatics; m, the middle layers of the 

 lymphatics; d, the deep plexuses of the lymphatics. 



Fig. 11. — From a horizontal section of a similar preparation as in Fig. 

 10. Magnifying power about 260. 



e, the epithelium horizontally or obliquely cut, the interstitial 

 cement substance between its cells contains pigment, and the injection 

 has found its way into it from the lymphatics of the mucosa ; I, the 

 lymphatic vessels of the superficial plexuses, i. e. those situated in 

 the papillary layer of the mucosa. 



Fig. 12. — Lymphatics of the mucous membrane of the mouth of the 

 rabbit. Magnifying power about 350. The lymphatics are every, 

 where connected with the interfascicular lymph-spaces, hence the 

 numerous fine processes. 



Fig. 13. — A lobule of a serous gland from the tongue of the rabbit. 

 Magnifying power about 100. 



/, lymphatic vessels in connection with the lymph-clefts between 

 the gland-alveoli ; m, lymjjh-clefts between the muscular fibres, in a 

 longitudinal view ; i, the same in transverse section, the structure of 

 the muscular fibres is not indicated ; d, a. duct in transverse section. 



Fig. 14. — From a similar preparation as the preceding figure. Magnifying 

 power 200. 



d, the duct of a mucous gland, in transverse section ; m, striped 

 muscular fibres ; /, lymphatic vessel in connection with the lymph- 

 spaces around the duct and between the muscular fibres. 



Fig. 15. — From the same preparation. Magnifying power about 300. 

 d, duct ; /, lymphatic vessel. 



^IG. 16. — From the same preparation. Magnifying power about 150. The 

 lymph-spaces between the muscular fibres are injected with Berlin 

 blue. 



i, the bundle of the muscular fibres in transverse section; /, the 

 same in longitudinal section. 



