LIST OF ILLUSTRATIONS. 



xxi 



of the subjacent corona radiata respectively (Francois-Franck and 

 Pitres) ....... 7U 



326. Effects upon the volume of the kidney and arterial pressure of exciting 



the motor area of the cerebral cortex of a dog (Francois-Franck and 

 Pitres) ... .... 715 



327. Myographic curves obtained as the result of strong excitation of the 



cortex cerebri and of the subjacent corona radiata (Francois-Franck 



and Pitres) . . . . . . . .718 



328. Curve of the contraction of a muscle during and after cortical excitation, 



showing the tetanic and epileptoid after-effect (Francois-Franck and 

 Pitres) ......... 720 



329. Curves showing the effects of cortical excitation productive of epilepsy 



upon the blood pressure, the pulse rate, and the size of the pupil 

 (Francois-Franck and Pitres) . . . . . .721 



330. Brain of monkev, marked out into the so-called " sensory areas : ' 



(H. Munk) 725 



331. Diagram showing the chief results obtained by Fritsch and Hitzig (in 



1870), on stimulation of the cerebral cortex of the dog . . . 732 



332. Diagram showing the results obtained by Ferrier on stimulation of the 



cerebral cortex of the dog ...... 733 



333. Diagram showing the results obtained by Ferrier from stimulation of 



the cerebral cortex of the cat ...... 734 



334. Diagram showing the results obtained by Ferrier on stimulation of the 



brain of the rabbit ....... 734 



335. Diagram showing the results obtained by Ferrier on excitation of the 



cerebral cortex of the monkey ...... 735 



336. Diagrams of the motor zone of the monkey's brain, showing the five 



areas into which it is divisible ...... 736 



337. Diagrams from Beevor and Horsley, showing effect of stimulation 



within the hallux area ....... 737 



338. Diagrams of the lateral and mesial surfaces of the monkey's brain, 



showing the effects obtained from stimulation of the excitable 

 areas . . . . . . . . .741 



339. The chief motor areas in the brain of the orang-utan (Beevor and 



Horsley) ......... 746 



340. Diagrams indicating the probable localisation of the chief motor and 



sensory areas of the cerebral cortex of man .... 747 



341. Diagram of arrangement of apparatus for determining the comparative 



latency periods of two parts of the cerebral cortex . . . 750 



342. Curves showing the comparative periods of latency for the ocular 



muscles, on stimulation of the frontal and occipital cortex respect- 

 ively ......... 750 



343. Brain of a monkey from which one occipital lobe had been entirely 



removed, but the angular gyrus left intact (Schafer and Sanger Brown) 752 



344. Brain of a monkey from which both occipital lobes had been cut away 



(Schafer and Sanger Brown) ..... 753 



345. Diagram of connection between the several parts of the retina and 



occipital lobes in the dog, according to H. Munk . . • 754 



346. Diagram showing the probable relations between the parts of the retina' 



and the visual area of the cortex in the monkey, according to Schiifer 756 



347. Corresponding points of the two retina 1 and of the two halves of the 



visual cortex . . . . . ■ • .757 



348. Brain of a monkey, showing complete removal of the superior temporal 



gyrus on both sides (Schafer and Sanger Brown) . . • 762 



