Skull, eye, optic nerves (cranial nerve II), optic chiasm, trochlear nerve (cranial nerve IV), corpora quadragemina, trigeminal ganglion (cranial nerve V), brainstem and cerebellum, carotid artery, shown in isolation, in 2 numbered illustrations. 1 illustration of skull divided in sagital section, brain removed; brainstem, cerebellum, eye, optic nerve and trigeminal ganglion shown in situ. Medial view. 1 illustration of the eyes, optic nerve, optic chiasm, geniculate bodies, and corpora quadrigemina, shown in isolation, inferior view.