i'2 THI: xKHvors SVSTKM AND ITS COXSKRVATION 



constitute tin- shortest and most direct of all the paths 

 which convey afferent impulses to the central stations. 

 This fact is dwelt upon entertainingly in "The Autocrat 



Fig. 14. View, from below, of the connection of the principal 

 nerves with tin- lirain: /', The right olfactory tract; //, the left 

 optic nerve; //', the right optic tract (the left tract is seen passing 

 hack into / and < , the internal and external corpora genicillata); ///, 

 the left oculomotor nerve; IV. (lie trochlear; I". I', the large roots 

 of the tril'acial nerves; + +, the lesser roots (the + of the right 

 side is placed on t he ( lasserian ganglion );/, t he oplit halinic; . ; , the 

 superior maxillary; and ..'. the inferior maxillary divisions; 17. tin- 

 left ahducens nerve; 177. VIII, the facial and auditory nerves; IX 

 XI, the glossopharyngeal, pneumogastric, and spinal accessory 

 nerve-; A'//, the risihl hypo^lo-sal nerve; C\. the left siilioc<-ipital 

 or tirst cervical nerve i I )e Nancn-dei. 



of the Breakfast Table." 1 ( 'oiisiderahly farther Lack 



we find the conspicuous optic nerves, the second cranial 



pair, reaching the base of the brain and appearing to cross 



1 Riverside Kdition, p. 7~>. 



