382 



JAMES ROLLIN SLONAKER 



Fig. 18 Ventral view of the base of the brain, the eyes and the nerves to the 

 eyeball and appendages. The Harderian gland of the right eye has been re- 

 moved to show the internal rectus, b, blood-vessels ; ch, chiasma; e, external rec- 

 tus; g, Gasserian ganglion; h, Harderian gland; i, internal rectus; im, inferior 

 maxillary nerve ; in, inferior rectus ; io, inferior oblique ; io b, inferior orbital nerve ; 

 Ig, lacrimal gland; I, lacrimal nerve; o, ophthalmic branch of the fifth nerve; on, 

 optic nerve; op I, optic lobe; p, hypophysis; sf, superior orbital or frontal nerve-; 

 S7n, superior maxillary; 3, 4, 5, and 6, third, fourth, fifth, and sixth cranial nerves. 

 X4. 



I 



