Art. II. I 



Herrick, Gustatory Paths hi Fishes. 



impregnated indicates the positions of these two chief centers 

 of secondary connection for gustatory root fibers. 



"5" J 



GOLGI method. 



Transverse section through the vagal lobes of Ameinriis jiebiilostis. 

 X6o. 



On the left side is shown a gustatory neurone of the dorsal secondary group 

 {s.g.71.), whose neurite enters the secondary gustatory tract {s.g.t.). The prepar- 

 ation shows one of the intrinsic neurones of the vagal lobe {in.), also several cells 

 of the nucleus ambiguus. On the right side are seen some of the simpler termin- 

 tions of the communis root of the vagus. 



The dorsal portion of the superficial roots of the vagus and 

 glossopharyngeus is the most important member of the com- 

 plex. Its fibers arborize intimately intertwined with the thick 

 thorny dendrites of the dorsal secondary neurones (Figs. 30, 

 31, 32). These are very highly differentiated cells whose neu- 

 rites arise from the cell body and constitute the secondary gus- 

 tatory tract, or central gustatory path. Their dendrites are 



