70 HUBER. [Vol. XVI. 



In D of Fig. Ill is shown a multipolar cell with two nuclei, 

 where the portions of the cell body containing the nuclei are 

 united by a band of protoplasm, giving the appearance of a 

 cell in the later stages of cell division. This condition was 

 seen only a few times, and is very much like that shown by 

 Apolant in Figs. 7 and 8 of his article. Not all the multipolar 

 cells have two nuclei, as may be seen in cell C of the above 

 figure. Mononuclear multipolar cells are, however, rarely seen. 

 Bipolar cells are proportionally not more numerous in the 

 rodents above mentioned than in other Mammalia. They are 

 found near the poles of the ganglia, between the afferent and 

 efferent nerves, and may be mononuclear or possess two nuclei. 

 In order to close the discussion of these cells I may be allowed 

 to anticipate somewhat, and state that I have often found the 

 multipolar cells, with two or more nuclei, surrounded by a peri- 

 cellular plexus ; one such is shown in E of Fig. III. 



I must, therefore, agree with Apolant when he states that the 

 presence of two or more nuclei in the sympathetic cells of the 

 rodents under discussion is not to be looked upon as expressing 

 a degenerative process. In all other respects the structure of 

 these cells, — the presence of chromophile granules, — as also 

 the structure of the ganglia taken as a whole, is identical with 

 the structure of the sympathetic cells and ganglia of other 

 mammals, in which the sympathetic neurons have only one 

 nucleus. 



The Dendrites. — In the sympathetic cell near the center of 

 the ganglion, the dendrites, the number of which varies, may 

 arise from any part of the cell body. In the peripheral cells, 

 as Dogiel (40) has correctly stated, the dendrites are usually 

 given off from that portion of the cell body pointing toward the 

 center of the ganglion. The dendrites branch and rebranch 

 and form between the ganglion cells an intercellular plexus. 

 This plexus is well shown in Fig. 26 — a portion of a section 

 of the solar ganglion of a cat. It may here be seen that the 

 dendrites intertwine in such a way as to leave open spaces, in 

 which the cell body of one, two, or perhaps three sympathetic 

 cells are found. This basket-like arrangement is what Ramon y 

 Cajal has described as pericellular nests. The dendrites do not, 



