43 



uninjected, by its transverse nuclear markings. The fila- 

 ments here correspond each to a single one of the bundle of 



Tig. 2. 



Pig. 3. 



three represented in Fig. l,and exhibit the same subdivisions 

 now accorded as characteristic of the finer nerve fibres in 

 their ultimate distribution, when they are deprived of the 

 adventitious membranous sheath and white substance of 

 Schwann. 



No difficulty will be encountered in distinguishing these 

 bundles of fine nerve-fibres as drawn in Fig. 1, from the 

 arteriole and capillary with which it is barely possible they 

 may be confounded. The transverse nuclear markings of 

 the arteriole are at once characteristic, and although capilla- 

 ries are also characterized by a more or less longitudinal 

 arrangement of their nuclear markings, yet by comparison of 

 Fig. 1 with Fig, 3, it will be seen that they are still different 

 from those of the nerve fibres, being distinguished by an 

 alternate arrangement of the nuclei on the sides of the vessel, 

 while the germinal matter in the nerve-fibre occupies its 

 entire thickness, bellying it out, as it were, while the imme- 



