286 H. W. NORRIS 
instance that on one side it contains approximately fifteen fibers, 
and on the other side about thirty fibers. In both cases the 
corresponding ramus jugularis VII contained many more general 
cutaneous fibers. The conclusion follows: either the contributed 
fibers increase in number through division or there is some addi- 
tional source for them other than the ramus communicans. In 
the specimen above mentioned on the side where the ramus com- 
municans contains only fifteen fibers the ramus jugularis VII 
receives a general cutaneous anastomosis from the ramulus ma- 
laris of the ramus mandibularis V (fig. 13, md.2), but on the other 
side no such anastomosis occurs. In one specimen the ramus 
communicans is wanting on one side, yet general cutaneous fibers 
in characteristic abundance occur in the ramus jugularis VII, 
without any anastomosing with the ramus mandibularis V. 
In specimens where there is just the right degree of staining 
attained, so that the motor, general cutaneous, communis and 
lateral line components are differentiated by their differences in 
color intensity, there is seen in the ramus jugularis VII, along 
with the very dark motor fibers, two lighter colored bands, one of 
which may be traced into the ramus communicans and the other 
into the main trunk of the facial nerve. At the brain wall this 
lighter colored band occupies a position dorsal to the motor por- 
tion of the nerve (figs. 30-33, VJJgc.). As has been stated the 
motor portion of the seventh nerve emerges from the brain in 
(usually) three rootlets (figs. 28-31). There is a large rootlet 
passing out ventral to the spinal V tract; a smaller one coming 
out through the same tract; and a third which passes out in the 
auditory (or communis) rootlets. The two smaller rootlets com- 
bine to form (apparently) a part of the lighter mass of fibers. 
At the point where the second rootlet (V7/Im.2) emerges from the 
brain (or in some cases near it but sharply distinct from it) a 
band of fibers from this lighter area enters the spinal V tract 
(figs. 28-31, V7Igc.). In some instances it is impossible to differ- 
entiate between the motor and general cutaneous fibers. Trac- 
ing the tract in question externally from the brain wall, as it 
passes anteriorly and peripherally it shifts medially and ventrally 
