xxx LIST OF ILLUSTRATIONS 



FIG. PAGE 



236. Illustrating successive color induction 542 



237. Excitation of the different components of the visual organ by light rays of dif- 

 ferent wave lengths ... 544 



238. Excitation of the different components in eyes of Konig and Dieterici by dif- 

 ferent wave lengths 545 



239. Illustrating simultaneous contrast 548 



240. The extra-ocular muscles and their axes of rotation (from Fox's "Diseases of 



the Eye") .550 



241. Rotation of the eye about the separate axes .551 



242. The field of vision projected on a distant plane perpendicular to the line of 



vision 552 



243. Illustrating Schemer's- experiment 553 



244. Illustrating optical delusion in judgment of distances 554 



245. Illustrating optical delusion in judgment of distances 554 



246. Illustrating optical delusion in judgment of distances 554 



247. The rivalry of the two retinae 555 



248. Illustrating the simultaneous formation of images of an oblique line in the two 



eyes ... 556 



249. Showing the positions of these images on the retinae 557 



250. Stere.oscopic vision r '." . . . " . 557 



251. Brewster's stereoscope ... . . . . . . . . . . 558 



252 Ganglion cell of a leech showing intracellular networks 560 



253. Pericellular network of Golgi, nucleus dentatus of the dog . ... . .561 



254. Semidiagrammatic section of the spinal cord 562 



255. Schema of connections in the cord 563 



256. Reflex contractions of the frog's leg, illustrating summation in the nerve cells 



of the cord . . . ; 571 



257. The relative resistance of several different nerve centers to asphyxiation . . 573 



258. Schema of an axon reflex through peripheral ganglion cells 584 



259. Schema of a reflex through several peripherarganglion cells 584 



260. Illustrating a possible explanation of an axon reflex 585 



261. Cross section at different levels of the spinal cord 589 



262. Secondary descending degeneration in the cord 590 



263. Illustrating method of stimulating the cord electrically 590 



264. Sections through the cervical and lumbar parts of the cord 591 



265. Diagram of the course of the sensory conducting pathways (from StriimpeH's 



"A Text-book of Medicine") 592 



266. Diagram of the upper and lower motor conducting pathways (from Barker's 



"Nervous System") 594 



267. Median section through the brain, showing divisions 600 



268. Transverse section of the medulla oblongata 602 



269. Position of the nuclei of the cranial nerves 603 



270. Brain of a dog with the cerebellum removed ........ 606 



271. Diagram showing paths connecting the cerebellum and pons with the cerebrum 



(from Barker's "Nervous System") 610 



272. Frontal section through the anterior quadrigeminal body of a human foetus . 615 

 273. Schematic representation of the nucleus of the oculo motor nerves . . .616 



274. The brain of Squalius cephalus, a bony fish 618 



275. The brain of Scyllium canicula, a dog-shark 619 



276. The brain of a frog 620 



277. The brain of Hatteria punctata, a lizard (from Wiedersheim's "Anatomic der 



Wirbeltiere") .... .621 



