332 THE LYMPHATIC SYSTEM, BY F. V. RECKLINGHAUSEN. 



not complete perforations, but are distinguished from the denser 

 tissue in consequence of their much greater transparency, and 

 also by the circumstance that they contain the pigment, and this 

 in the most marked manner in the ox ; with still higher powers 

 (see fig. 61), we see that they are traversed by fine fibres which 

 are frequently arranged in a stellate manner, and often con- 

 tain nuclei or cells to which granular masses of pigment cleave. 



Fig. 61. Section of the medullary substance of a lymphatic gland 

 from the Ox. a, follicular cords ; b, trabeculce ; c, lymph path. Mag- 

 nified 120 diameters. 



These fibrils unite to form thicker fasciculi of connective tissue, 

 the trabeculce, which are not unfrequently flattened ; they lie 

 always in the centre of the above-mentioned spaces; and con- 

 stitute the main trunk from the sides of which the fine fibrils 

 of the reticulum are frequently given off nearly at right angles; 

 the latter are then attached on the other side to the cords of 

 the compact substance (medullary cords of Kolliker; 'medullary 

 tubes of His ; lymph tubes of Frey). 



These medullary cords (fig. 61) have the same structure 

 as the tissue of the lymphatic follicles (see above), consisting 



