NERVES OF THE DOGFISH 



321 



united with the preceding rootlet. It ends in the spinal V tract. 

 It seems to come from the profundus ganglion rather than from 

 the gasserian. The fourth and fifth rootlets may possibly con- 



Fig. 21 A projection upon the sagittal plane of the roots and ganglia of the 

 V-VII-VIII nerve complex, together with the oculomotor nerve and the ciliary 

 sympathetic nerve plexus. Represented as seen from the left side. X20. 



tain sensory fibers, but motor elements predominate. From a 

 study of cross, sagittal, and horizontal sections the impression 

 is gained that the portio minor is overwhelmingly motor in com- 

 position, and that the greater part of the profundus fibers enter 



