40 



Left half of brain. Portions removable in order to show (vii.) 

 tJie strice longitudinales and corpus callosum (inner and outer 

 aspects). 



(viii.) The relations and contents of the lateral ventricle, as 

 viewed from above. 



(ix.) The course ofthefornix and leading commissural tracts, 

 as seen from within, together with the peduncles of the 

 cerebellum. 



Reducible to (x.) longitudinal section (right half as seen from 

 within). 



THE CALVARIA (removed at v.). Right side. Superficial 

 muscles and blood-vessels. 



Left side. Cranial roof and origin of temporal muscle. 

 Interior. The dura mater and superior longitudinal sinus. 



INTERIOR OF CRANIUM. Dura mater, with enclosed great 

 blood sinuses in relation to the Torcula Herophili (laid open). 



Portions of leading cranial nerves of left side indicated, in 

 relation to their exits. Distribution of middle meningeal 

 artery shown. 



SECTIONAL VIEWS OF HEAD AND NECK. On removal of (xi.) 

 anterior half of left side. The buccal, nasal, pharyngeal, and 

 laryngeal cavities, with the trachea and oesophagus. Shows the 

 septum nasi, and the course of the olfactory and naso-palatine 

 nerves. 



Surface view of neck. The longus colli muscles ; cervical 

 sympathetic, with superior cervical ganglion and the rami 

 communicantes of the cervical nerves. 



On removal of (xii.) posterior half of left side. Seen, in 

 addition to the above-named structures and parts, median 

 longitudinal section of cervical vertebrae ; cervical spinal cord, 

 with roots of cervical spinal and spinal-accessory nerves. 



ANTERIOR HALF OF HEAD AND NECK, LEFT SIDE (removed 

 at xi.). SECTIONAL VIEW. Internal anatomy of nasal chamber, 

 with distribution of olfactory and nasal branches of palatine 

 nerves and of the ethmoidal arteries. 



The muscles of the tongue are indicated in detail, and as 

 slightly separated, to display the course of the lingual artery 

 and hypoglossus nerve. 



Certain muscles of the palate and larynx are represented, 

 as seen after removal of the pharyngeal mucous membrane. 



DORSAL ASPECT. Constrictor pharyngeus muscles, with 

 general distribution of carotid artery and vagus nerve. 



After removal of (xiii.) posterior pharyngeo-o2sophageal wall. 

 The levator palati, stylo-thyroglossus, and crico-arytenoid muscles, 

 with adjacent nerves and arteries, as seen from within. 



POSTERIOR HALF OF HEAD AND NECK, LEFT SIDE (removed 

 at xii.). OUTER ASPECT. Shows especially ansse of cervical 

 nerves and extra-cranial course of vertebral artery. 



