222 Cc. JUDSON HERRICK 
ventral lateral quadrants of the cerebral hemisphere. Upon 
reaching the amygdala its fibers turn ventralward to arborize 
freely among the neurons of the dorsolateral part of this nucleus. 
1b. p. . ate SFE. _\-Z. Im. med. 
ray We ht com. hip. 
p. hip. tr. amg. hab. 
d. amg. hab. 
ASUS d. f lat. t. 
dol. p.tr. frtait 
Gas d. f. medt. 
nuc. po. 
Fig. 6 Through the middle of the anterior commissure complex. At this 
level there are represented in this commissural complex the decussation of the 
medial forebrain bundles, the decussation of the lateral forebrain bundles, the 
commissura hippocampi, and between the last two a mixed system of unmyeli- 
nated fibers containing the commissure of the two amygdalae and habenular 
fibers (cf. fig. 17 and p. 227). Unmyelinated fibers of the dorsal olfactory projec- 
tion tract are present in the lateral part of the amygdala. A few myelinated 
fibers of the habenular tract of the amygdala (tractus amygdalo-habenularis) are 
seen on the right. 
Fig. 7 Through the caudal end of the anterior commissure ridge, containing 
unmyelinated fibers of the hippocampal commissure. The fibers of the dorsal 
olfactory projection tract are leaving the ventral border of the amygdala. The 
amygdalo-habenular tract is directed upward toward the stria medullaris. The 
section passes through the extreme caudal end of the corpus striatum, repre- 
sented by a few neurons embedded in the lateral forebrain bundle. 
