LYMPHATIC GLAXDS. 



357 



contents of the afferent vessels now pass. The efferent 

 vessels begin in the medullary part of the gland, and are 

 continuous with the lymph-path here as the afferent vessels 

 were with the cortical portion ; the epithelium of one is 

 continuous with that of the other. 



Blood-vessels are freely distributed to the trabecular 

 tissue and to the gland-pulp (fig. 98). 



Properties of Lymph and Chyle. 



The fluid, or lymph, contained in the lymphatic vessels 

 Fig. 98* 



<t\ 



is, under ordinary circumstances, clear, transparent, and 



* Fig. 98. A Small Portion of Medullary Substance from a Mesen- 

 teric Gland of the Ox (magnified 300 diameters), d, d, trabeculse ; a, 

 part of a cord of glandular substances from which all but a few of 

 the lymph-corpuscles have been washed out to show its supporting 

 meshwork of retiform tissue and its capillary blood-vessels (which have 

 been injected, and are dark in the figure) ; &, 5, lymph-sinus, of which 

 the retiform tissue is represented only at c, c (after Kolliker). 



