128 Journal of Comparative Neurology and Psychology. 



tively slender, this condition being especial!}- marked in the re- 

 gion of the kidney. The cellular enlargements of the sympa- 

 thetic cord in connection with the nerves now may be called 

 ganglia, and the constricted portions between the nerves, which 

 are becoming distinctly fibrous in structure, may be called com- 

 missures. 



7?la.Xr->r 



Fig. II. — Diagrammatic reconstruction of the sympathetic nervous system of 

 a 21 mm. toad. Reference marks, same as in previous figures. X 24. 



