AVES. 107 



3. Inferior branch of the superior ganglion of the sympathetic, passing with the 



internal carotid artery: it begins by a branch passing upwards from the 

 glosso-pharyngeal nerve ; it receives a branch from the superior branch 2, 

 passing beneath the slender bone of the tympanum ; it is continued onwards 

 and receives a branch from the hard portion of the seventh ; it then divides 

 into two branches, one passes into the orbit to the gland of Harder, after 

 sending a filament to the first trunk of the fifth, the other passes to the 

 palate and nose. 



4. Descending branch from the superior ganglion of the sympathetic accom- 



panying the carotid artery to the bottom of the neck, and communicating 

 several times with its fellow. 



5. Second trunk of the fifth. 



6. Third trunk of the fifth. 



7. Hard portion of the seventh. 



8. Glosso-pharyngeal nerve. 



9. Trunk of the par vagum. 



10. Ninth nerve. 



11. Prolongation of the sympathetic, communicating with a spinal nerve; it passes 



down in a canal with the vertebral artery, and communicates with all the 

 other cervical nerves. The posterior trunk, or division of each cervical 

 nerve, is not joined to the sympathetic, but only the anterior ; and on this, 

 after it has left the spinal ganglion, the sympathetic ganglion is formed, from 

 which a nerve passes, giving some filaments to the muscles on the anterior 

 part of the neck, and then terminating on the skin. The posterior trunk 

 or division terminates on the posterior part of the neck. The division into 

 an anterior and posterior trunk is the same in the crane ; the anterior com- 

 municating with the sympathetic, and being distributed in the same manner 

 as hi the swan, and the posterior trunk on the muscles and skin at the 

 posterior part of the neck. 



p 2 



