Figs. 26 and 27 Cross-sections through the auricular lobe of the brain, show- 
ing the internal distribution of the radix mesencephalica V, its relation to the cere- 
, bellar commissure and the trochlear nerve. 50. 
Fig. 26 The trochlearis is seen leaving the cerebellar commissure and passing 
ventro-medially toward its place of internal origin. 
Fig. 27 The dorsal and ventral parts of the radix are here seen to be continu- 
ous; fibers of the lemniscus system associate with the radix fibers; the trochlearis 
as in the preceding. Compare with figures 20 to 25. 
268 
