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MANUAL OF HISTOLOGY. 



cylinders for the most delicate nerve fibres, as we have already briefly 

 stated (p. 315). But probably the end filaments of all these tree-like 

 processes eventually acquire the same constitution. 



The fact that both species of processes, namely, the branched proto- 

 plasm arid the axis cylinder, may be observed to be marked with fine 

 lines, indicating fibrillation (Schultze), has been already alluded to (p. 

 316, fig. 308). 



The cells also situated close to the central canal, and those as far back 



Fig. 558. Multipolar ganglion cells from the anterior tornu of the spinal 

 cord of the ox. a, axis cylinder process ; 6, finest filaments springing 

 from the ramifying protoplaspi processes. 



as the base of the posterior cornu, present the same remarkable structure 

 recognised by Deiters. The destiny of these " protoplasm processes." 

 however, is by no means settled as yet. According to Gerlacli they first 

 break up into a delicate, dense network of nervous nature, from which 

 the nerve fibres then spring, or (if we prefer the converse) into which 

 they sink after previous ramification. 



Going further backwards still, regularly into the posterior cornu (fig. 



