50 AMPHIBIA. 



2. A branch of the first trunk of the fifth, joined by one from the third, to form 



ciliary nerves. 



3. Fourth, or pathetic nerve, arising from the roof of the ventricle just behind the 



optic lobes, and passing to terminate in the superior oblique muscle of the 

 eye. 



4. First trunk of the fifth ; it passes forward, gives a branch to join one from the 



third nerve to form the ciliary nerves, passes underneath the attollent and 

 superior oblique muscles of the eye, gives filaments to the upper eye-lid, and 

 then enters the nose, where it becomes intimately united with a portion of 

 the olfactory nerve, and terminates on the Schneiderian membrane. 



5. Second trunk of the fifth ; it gives filaments to a muscle of the lower jaw, then 



passes on the floor of the orbit, gives filaments to the large lachrymal gland 

 and the lower eye-lid, and divides into branches to terminate on the surface 

 of the palate and upper jaw beneath the horny covering. 



6. Third trunk of the fifth ; it gives branches to the muscles of the lower jaw, and 



then divides into branches, which terminate on the surface of the lower jaw 

 beneath the horny covering. 



7. A branch of the sixth nerve, given to the muscles which encircle the optic 



nerve, and are spread on the convex portion of the sclerotic coat. 



8. Hard portion of the seventh nerve. 



9. Auditory nerve. 



10. Glosso-pharyngeal nerve. 



11. Trunk of the par vagum. 



12. Accessory nerve arising from the posterior surface of the spinal cord without 



joining any of the posterior bundles of the cervical nerves. 



13. Ninth nerve. 



14. First cervical nerve. 



