iii8 



INDEX 



Ventroniedian sulcus in gibbon, 4!~, 418 

 in gorilla, 676 



in human, 795, 800, 804, 806, 808, 849 

 in lemur, 34, 36, 38 

 in marmoset, 162 

 in orang, 498 



in Pitliccus rhesus, 359, 362 

 in tarsius, 100 

 Vcntromesial accessory olive in lemur, 48, 49 

 Vermal ridgepole in chimpanzee, 571 

 in man. 974 

 in orang, 497 

 in Pithecus rhesus, 358 

 Vermis cerebelli, 248, 2^2, 266, 267 

 in chimpanzee, 595 

 definition of, 318 



in dog-headed baboon, 298, 319-325 

 function of, 53, 252, 266, 268, 320, 6-1 

 in gibbon, 416 

 in gorilla, 652, 671, 677 



comparison of, with lateral lobes of cerebellum, 



672 

 no progressive advance in, 6~i, 6-5 

 in lemur, 51, 52, 53, 5~, 60, 64 

 in man, 814, 822, 9-2 

 in marmoset, 161, 163, 169, 170 

 in mycctcs, 207, 219, 221, 247 

 in orang, 498, 521 

 in Pithecus rhesus, 358, 376, 380 

 relation of, to cerebellar hemispheres, 265 

 to inferior olivary nucleus, 253 

 to vestibular nuclei, 262 

 in tarsius, 98 

 Vermis, superior, in chimpanzee, 570, 571 

 in gibbon, 413, 4r4, 435 

 in gorilla, 652 

 in man, 794 ' 



in orang, 493 

 Vertex, arch of, in Piltdoun skull. 886 



absent in Neanderthal man, 897 

 Vestibular area in chimpanzee, 585, 610-615,618- 

 622, 712 

 comparison of, with arboreal primates, gorilla, 

 man, relation of, to locomotion, 585 

 coefTicients of, in higher anthropoids, 713 

 comparison of, in intermediate primates, with 



th.it of lower group, 465 

 components of, 50 

 definition of, 362 

 in dog-headed baboon, 339. 343. 344 



Pages I 474 are in Volume I, 



Vestibular area in gibbon, 420, 464 



relation of, to locomotion and balancing, 464 

 in gorilla, 656, 686, 693, 6tj4 

 in intermediate primates, 464 



coefficients of, 465 

 in lemur, 50, 78 

 in mycetes, 238, 239 

 in orang, 534, 537, 538, 540, 541 

 in Pithecus rhesus, 373, 375, 393-403 



large size of, 374, 375 

 relation of, to balancing, 362 

 in tarsius, 103, 1 38-1 51 

 Vestibular complex. See also Vestibular area, 

 in lemur, 78 



in man, 811, 813, 841, 852, 854, 857 

 Vestibular eminence in orang, 499 



compared with chimpanzee, gorilla, man, 499 

 in Pithecus rhesus, 362 

 Vestibular mechanism, phyletic constancy in, 585, 



712, 714 

 Vestibular nuclei in chimpanzee, 574, 583 



comparison of, between great anthropoids and 



intermediate and lower primates, "13. -14 

 coefficients of, 262, 263 

 in dog-headed baboon, 315-317. 322, 343 

 function of, 219, 260, 261, 262, 316, 317, 3-3, 583 

 in gibbon, 431, 713 

 in gorilla, 667 

 high specialization of, in gibbon, 713 



in mycetes, 264 



in tarsius, 1 15 

 in lemur, 73, 78, 80, 81 

 in man, 811, 842, 851 

 in marmoset and mycetes, 169, 170, 186-188, 219, 



261, 263, 264 

 in orang, 513 



in Pithecus rhesus, 372, 374, 393 

 relation of, to internal ear, 262, 317, 373 



to vermis cerebellum, 262 

 in tarsius, 1 13-117, 145 

 Vibrissae, relation of, to nucleus of Rolando, 307 

 V ision, adjustments in, 472 

 in ape-man of Java, 878 



binocular, development of, 280, 527, 601-603, 

 "23, -24 



relation of, to internuclear connection, 280, 

 471-473. 603. 681, 723, 725 

 in chimpanzee, 601, 602, 722, 723 



stereoscopic fusion of, 602, 603 

 comparison of, in lower primates, 280 



and man, 282, 283 

 pages 475 1 1 20 in Volume II. 



