Chap, xiv.] NERVE-FIBRES. 103 



the capsule, into the cortical lymph sinuses, from 

 these into the medullary sinuses, and from these into 

 the efferent lymphatics. Owing to the presence of 

 the reticulum in the lymph -sinuses the current of the 

 lymph will flow very slowly and with difficulty, as if 

 through a spongy filter. Hence a large number of 

 formed corpuscles, pigment, inflammatory or other 

 elements, passing into the gland by the afferent vessels 

 are easily arrested and deposited in the sinuses, and 

 are there readily swallowed by the amoeboid corpuscles 

 lying in the meshes. 



Passing a stream of water through the gland, the 

 contents of the meshes of the reticulum of the sinuses 

 i.e., the lymph corpuscles are of course the first things 

 washed out (von Recklinghausen), and on continuing 

 the stream some of the lymph corpuscles of the 

 follicles and cylinders are also washed out. Hence it 

 is probable also that by the normal stream of lymph 

 passing through the gland, lymph corpuscles are 

 drained, as it were, from the follicles and cylinders 

 into the sinuses. The amoeboid movement of the lymph 

 corpuscles, especially of the large and ripe ones, will 

 greatly facilitate their passage from the follicles and 

 cylinders into the lymph sinuses. 



CHAPTER XIV. 



NERVE-FIBRES. 



136. THE nerve-fibres conduct impulses to or from 

 the tissues and organs on the one hand, and the nerve- 

 centres on the other, and accordingly we have to con- 

 sider in each nerve-fibre the peripheral and central 

 termination and the conducting part. The latter, i.e., 



