a H. BERKELBACH VAN DER SPRENKEL 
part of the lateralis enters, dorsally consisting of fine fibers and 
ventrally of very coarse fibers. 
The finer fibers proceed to the dorsal gray [fig. 11 (2)], which 
is covered by the medial crista cerebellaris and is known under 
the name, lobus nervi lateralis anterioris (see above). Under 
this crista cerebellaris a considerable layer of fibers of the same 
character is found, consisting of descending fibers of this nerve, 
which extend throughout a large extent of that lobe. Thus, 
while the posterior lateral nerve ascends beneath the lateral 
crista of the bulb, the anterior lateral nerve descends beneath 
the medial crista. More caudally, as the other components of 
the V + VII complex successively enter the brain, the lateralis 
sends a great quantity of fibers between the sensory VII and the 
gray substance in which a great number of fine lateralis axones 
end. 
These fibers are not all of the same caliber. We may distin- 
guish coarse fibers lying on the sensory VII and finer fibers 
dorsally of them. Among the latter also some coarser fibers 
- occur. The former, the finer fibers, proceed in two fairly large 
bundles in a mesial and ventral direction, then turn and continue 
their course frontad [fig. 5, fig. 11 (8)]. They can be traced, 
running beneath the medial crista, to the level where the posterior 
lateralis nerve ends. They probably terminate here in the 
adjacent gray substance, but may also cross the raphé and end 
on the other side of the brain. ‘Tello also has mentioned crossing 
fibers of this group. 
Apart from these ascending fibers, there is a more dorsal group 
of fine fibers [fig. 11 (4)], which turn in a frontal direction at about 
the same level as those last mentioned and spread within the 
gray substance of the lobus lateralis anterior, proceeding about 
as far frontally as the first mentioned fibers. 
At the same level on which these fibers take a frontal turn 
other fibers take a caudal course.- They have the same color as 
the preceding fibers but are somewhat stronger. They descend 
in part as a well defined round bundle [fig. 11 (5)], in part as 
diffuse fibers [fig. 11 (6), figs. 6, 7] and take their course in the 
lobus nervi lateralis anterioris beneath the medial crista described 
above. 
