Fig. 200a. Tlie brain and associated sense organs, JI(pia)ic]nis maculalvs, dorsal view. 

 (Duncan Dunning, del.) 



iu.VII, buccal branch of facial nerve; ch., cerclielluni ; el., ciliary nerve; c.r., restiform 

 body; di., diencephalon ; hmd., hyomandil»ular division of the facial nerve; i.l., inferior 

 lobe; md.V, mandibular division of the fifth nerve; m.n., median olfactory nucleus; med., 

 medulla; ms., mesencephalon; mx.V, maxillary division of trigeminal nerve; ol.h., olfactory 

 bulb; ol.l., olfactory lobe; oJ.t., olfactory tract; op.l., optic lobe; op.V, ophthalmicus pro- 

 fundus division of the trigeminal nerve; os.V and VIl, ophthalmicus superficialis of tri- 

 geminal and facial nerves; /?., telencephalon; in., terminal nerve; v.s., vascular sac; w-z, 

 occipitospinal nerves ; I, olfactory nerve ; //, optic nerve ; III, oculomotor or third nerve ; 

 IV, trochlearis or fourth cranial nerve; T'7, abducens or sixth cranial nerve; Till, auditory 

 or eighth cranial nerve; IX, glossopharyngeal nerve; A', vagus nerve. 



