No. I.] SYMPATHETIC GANGLIA OF VERTEBRATES. 69 



ihrerseits die Veranlassung zu einem starkeren Wachsthum 

 der Zelle abgiebt. Ich vindicire also dem Process keine func- 

 tionelle, sondern lediglich eine biologische Bedeutung fiir die 

 Zelle." My own observations on sympathetic ganglion cells 

 with more than one nucleus were made on ganglia of the guinea 

 pig stained in methylene blue, a method which, in the hands of 

 Apolant, gave only unsatisfactory results ; they may, therefore, 



Fig. III. — Sympathetic neurons of guinea pig. (For description see text.) 



receive this brief mention. The majority of my preparations 

 were from the solar ganglion. The larger number of the sympa- 

 thetic neurons in this ganglion are multipolar, with two and 

 sometimes three nuclei. Such cells are reproduced in A and B 

 of Fig. Ill ; as may be seen from this figure, these cells differ 

 from sympathetic cells found in other Mammalia only in having 

 more than one nucleus. The number of dendrites varies ; 

 only one neuraxis is made out {a, in figure), if the cells are well 

 stained. 



