—Duke-Elder S.—System of Ophthalmology Vol． 12：Neuro-Ophthalmology／—Blodi, F. C. et al.—Ste． eoscopic Manual of the Ocular Fundus in Local ＆ Systemic Disease Vol．2

　It is impossible to deny that neurology is one of　the most fascinating subjects in the whole of me—dicine, and when it is remembered that neurooph—thalmology with its visual, pupillary, ciliary, motor，　sensory and secretory systems permeates every　portion of the central nervous system, and that　30％　of our total sensory impulses are derived　from the retinae, this aspect of neurology must be　of particular importance．