XXVI LIST OF ILLUSTRATIONS. 



FIG- PAGE 



246. Scheme of the Branches of Vagus and Accessorius, 702 



247 . Distribution of the Cutaneous Nerves of the Upper Extremity (Henle} , . 714 



248. Distribution of the Cutaneous Nerves of the Lower Extremity (Henle} , . 715 



249. Diagrammatic Representation of the Course of a Thoracic Branch of 



the Sympathetic 718 



250. Transverse Section of the Spinal Cord at the Level of the Eighth Dor- 



sal Nerve (Schwalbe) , 724 



251. Scheme of the Nerve Distribution of the Spinal Cord, 725 



252. System of Conducting Tracts in the Spinal Cord, at the Level of the 



Third Dorsal Vertebra (Flechsig) , 726 



253. Diagrammatic Representation of the Principal Tracts of the Spinal 



Cord, 727 



^254. Diagrammatic Representation of the Structure of the Brain, 743 



"255. Course of the Paths for Voluntary Movement, 745 



256. Course of the Motor and Sensory Paths through a Transverse Section 



of the Spinal Cord, 746 



257. Course of the Sensory Fibers from the Posterior Roots through the 



Spinal Cord upward to the Cerebrum, 747 



258. Cerebrum of Dog, Rabbit, Pigeon, Frog, and Carp, 782 



259. The Psycho-optic and Psycho-auditory Centers and the Sensory 



Sphere of the Dog's Brain (H. Munk},. 786 



260. The Cerebrum with the Principal Convolutions and Sulci (A. Ecker) 



in its Longitudinal Relation to the Skull, 793 



261. Secondary Degeneration of the Motor Tracts in the Cerebral Peduncle, 



the Pons and the Pyramid (Charcot) , 795 



262. View of the Median Surface of the Human Brain, 796 



263. Cerebrum of Man, 803 



264. Frontal Section through the Cerebrum, 805 



265. Lymphatic Structure of the Cornea, 815 



266. Meridional Section through the Corneoscleral Junction, 816 



267. Diagrammatic Representation of the Blood-vessels of the Eye (Th. 



Leber) , 8 1 8 



268. Layers of the R.etina, 820 



269. Transverse Section of a Mammalian Retina (Ramon y Cajal), 820 



270. Fibers of the Lens, 82 1 



271. Horizontal Section through the Optic Nerve, at its Entrance into the 



Eyeball through the Coats of the Eye, 822 



272. Action of Lenses on Light, 824 



273. Refraction of Light, 825 



274. Construction of the Refracted Ray, 825 



275. Optical Cardinal Points, 826 



276. Construction of the Direction of the Refracted Ray 827 



277. Construction of the Image, 827 



278. Refracted Ray in Several Media, 828 



279. Visual Angle and Retinal Image, 829 



280. Ophthalmometer (v. Helmholtz), 830 



281. Anterior Quadrant of a Horizontal Section of the Eyeball, 832 



282. Diagrammatic Representation of Accommodation for Near and Far 



Objects, 833 



283. The Images of Purkinje-Sanson, 834 



284. Schemer's Experiment, 835 



285 and 286. Refractive Condition of the Normal Eye, at Rest and in Ac- 

 commodation, 836 



287 and 288. Refractive Condition of the Short-sighted and the Far-sighted 



Eye, 836 



289. Power of Accommodation, 838 



290. Cylindrical Glasses for Astigmatism, 841 



291. The Entoptic Shadows, 845 



292. Apparatus for Illuminating the Back of the Eye 847 



293. Scheme of the Indirect Method, . . . 848 



294. Action of a Divergent Lens, 848 



295. Action of a Divergent Lens, 848 



296. The Optic-nerve Entrance, with the Surrounding Structures, of a 



Normal Eyeground (Ed. Jaeger) , ' 849 



297. Mechanism of the Orthoscope, 850 



