384 



THE BRAIN OF THE TIGER SALAMANDER 



Fig. 106.^ — Detail of the neuropil of the gray substance of the dorsal sector of the anterior 

 olfactory nucleus in the plane of figure 105 and from the same specimen ('34, fig. 2). Golgi 

 method. X 100. Only the axonic component of the neuropil is here impregnated. The positions 

 of the unimpregnated cell bodies are indicated by the dotted outlines. 



Fig. 107. — This is a detail of the neuropil of the gray substance of the rostral part of the 

 corpus striatum of the adult frog, Rana pipiens ('34, fig. 3). Golgi method. X 142. The 



tr.ol.v.l. 



section pictured is obliquely longitudinal, inclined about 45° from the horizontal plane, witli 

 the ventricular border more ventral. The rostral end is above. The impregnation is similar to 

 that shown in figure 106. One small neuron of the striatal gray is impregnated. 



Figure 108. — Neuropil of the anterior olfactory nucleus and corpus striatum, as seen in an 

 obliquely horizontal section of the adult brain. The right side is more dorsal ('42, fig. 15). 

 Golgi method. X 50. The section pa.sses through the right hemisphere near the ventral surface, 

 including the ventral sector of the anterior olfactory nucleus and the ventral border of the 

 gray of the corpus striatum {c.s., here unimpregnated). Laterally of this gray is the striatal 

 neuropil {c.s.n.), in which only the axonic component is impregnated (cf. fig. 99). Rostrally of 

 the striatal gray is the extreme ventral border of the neuropil of the caudate nucleus, the struc- 

 ture of which is .shown in figure 109. 



