INDEX. 



A. 



Action, intellectual, basis of, 183. 

 Agouti, brain of, 257. 

 Agraphia, instances of, 659-664. 



nature of, 657. 



,, seat of lesion in, 6SG. 

 Amoebse, 6. 



,, life activity of, 8. 

 Amnesia, incoordinate, 634. 



,, illustrations of, 619-647. 



mode of investigatioii of. 6$2. 



seat of lesion in, 682, CS'J. 



varieties of, 620. 



,, verbale, nature of, 619. 

 Amphibia, brain of, 119. 

 Anatomists, early, on brain, 513. 

 Ancients, views of, concerning brain, 



511. 



Animal units, 7. 



Anterior Commissure, 128, 133, 271, 454. 

 Apes, intelligence of, 321-331. 



man like, brains of, 295-306. 

 Aphasia, 647. 



instances of, 649-657. 



seat of lesion in, 675, 634, 686. 



varieties of, 687. 

 A p hernia, instances of, 665-672. 



,, nature of. <>4. 



,, seat of lesion hi, 686. 

 Appetites, 222. 

 Area of consciousness, 501. 

 Arrest of development of Cerebral Hemi- 

 sphere, 393. 



Arthropods, nervous system of, 101. 

 Ascending frontal Convolution, 447. 

 Association, doctrine, of, 175. 



,, system of fibres, 452. 



Asymmetry of Hemispheres, 400. 

 ktiophy of one cerebral Hemisphere, 493. 

 unilateral, of Cerebellum, 507. 



Auditory nerve, relations of, 470, J-.;8. 



,, saccules, 85. 



word-centres, diminished ex- 

 citability of, 621, 627. 

 Automatic movements, deferred, 561. 



B. 



Baboon, brain of, 294. 

 Base of brain, 471. 

 Bat, brain of, 265. 

 Beavers, intelligence of, 3! L 

 Beetle, brain of, 103. 

 Bend of the stream, SSii. 

 Bilateral movements, 49(5. 

 Birds, brain of, 134. 



,, cerebellum of, 131. 

 cerebral lobes of, 132. 

 instincts of, 246. 

 medulla of, 130. 

 ,, mental powers of, 24 ', 252. 

 optic lobes of, 131. 

 third ventricle of, 128. 

 Blow-fly, brain of, 104. 

 Boa-Constrictor, brain of, 1 26. 

 Brachiopoda, nervous system of, 72. 

 Brain, base of, 471. 



comparative weight of, in birds 



and mammals, 252. 

 fissures of, 380, 386. 

 tf heaviest human, 368. 

 human, convolutions of, 381-410. 

 ,, human, structure of, 428-47(3. 

 ,. origin of, 64. 

 Brain of Agouti, 257. 

 Amphibia, 119. 

 Baboon, 294. 

 Bat, 265. 

 Beetle, 103. 

 Birds, 134. 

 Blow-fly, 104. 

 Boa-Constrictor, 1'Jti 



