Figs. 22and 23 Sagittal sections through the auricular lobe of the brain, show- 
ing the internal distribution of the radix mesencephalica V, and the relations of the 
trochlearis nerve to the radix and to the cerebellar commissure. 50. Compare 
with figures 20, 21, 24 to 27. 
Fig. 22 Five sections lateral to that shown in figure 20; dorsal and ventral 
parts of the cerebellar commissure, and lateral and medial divisions of the radix are 
shown. 
Fig. 23 Hight sections lateral to that shown in figure 20. The dorsal and ven- 
tral parts of the cerebellar commissure are united in this section. 
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