432" 'Journal of Comparative Neurology and Psychology. 



Fig. 8. Two neurones from the dorsal cornu of the spinal cord of fry of Ameiurus nebulosus, 

 about 3 cm. long. The section is taken at about the level of the second spinal nerve (cf. Fig. i). Golgi 

 method. X 195. 



The dotted line indicates the median plane (dorsal fissure). The neurite enters the formatio reticu- 

 laris of the same side. 



Fig. 9. A large neurone of the spinal V nucleus of Ameiurus nebulosus about 3 cm. long. Golgi 

 method. X 75. 



The section is taken at about the same plane as Fig. 3. Several small intrinsic neurones of the 

 spinal V nucleus and one large neurone of the formatio reticularis are also impregnated. Termini of the 

 spinal V tract and dorso-lateral fasciculus in the spinal V nucleus are shown. 



