1 1 06 



INDEX 



Pontile nuclei, di'linition of, 272 



in <Jog-hc-;Kii-d baboon, 321-327, 342, 345 



I'unction of, 272, 275, 301, 1014 



in gibljon, 421, 436, 450, 451-453, 467, 468 



in gorilla, increased extension of, 672, 676, 690- 



693.695, 719 

 significance of size of, 674, 676, 725 

 in higher anthropoids, coellK-ients ol, 719, 720 

 importance of, 2~3 



index of eoordinalinn and skilled acts, 59, 271, 

 272, 467 

 of evolutional unfolding, 273, 722, 1020 

 of expansion of cerebral cortex, 272, 301, 71H 

 in intermediate primates, cocflicients of, 468 

 relation to skilled manual movement, 467, 468 

 superiority of, over lower primates, 468, 469 

 intimate bearing of, on ncokinesis, 1014 

 in lemur, 56, 57, 58, 59, 60, 61, 64, 73, 79 

 reconstruction of, 77, 78 

 relation of, to metencephalon, 78 

 in lower primates, coefficients of, 273 

 in man, 820, 823, 837, 843-853, 856 

 complexity of, 837 



increase in size of, 811, 820, 83-, 838, 850 

 significance of, 820, 823 

 in marmoset, 172-175, 186-188 

 in mycetes, 223-226, 235-240 

 in orang, 517, 522, 538-542 

 in Pithecus rhesus, 377-384, 397-401 



comparison of, with baboon, 380 

 relation of, to coordinative control of muscles of 

 extremities, 10 14 

 to mammal dillerentiation, 276, 467 

 size of, to number of fibers, 274, 301 

 two buttresses and layers of, 399 

 Pontile tegmentum, in gibbon, 339, 340 

 Porpoises, 10 

 Posterior cerebellar notch in chimpanzee, 571 



in orang, 49" 

 Posterior commissure, 249 



in man, 814, 858 

 Posterior longitudinal fasciculus in dog-headed 

 baboon, 311-316, 327-33". 34". 342 

 in gibbon, 426-432, 439, 441 

 in human, 824, 829 



in lemur, 47-50, 52, 55, 57, 60, 61, 62, 66, 76 

 in marmoset, 167, 169, 170, 171, 173, 174, 176, 178 

 in mycetes, 215-226 

 in orang, 515, 525 

 in Pithecus rhesus, 3-2-386, 403 

 relation of, to regulation of motion, 120 



Pages 1-474 are in Volume.I, 



Posterior longitudinal fasciculus in tarsius, 108, 



109, 111-113, 118-121, 123, 127-130 

 Posterior medullary velum, in human, 824 

 Postinfundibular eminence in man, 833 

 Post-olivary sulcus in human, 796, 849 

 Postsplenial fossa in chimpanzee, 570, 571 

 in gorilla, 651, 652 

 in lemur, 33 

 in orang, 496, 497 

 pertains to primate brains, 972 

 Postural evolution, stages of, 978-983 



bearing of, on differentiation in the hand, 983 

 efi'eet of, on digits, 978-981 



importanei' of dillerentiation of foot in, 982 

 relation of, to arboreal habitat, 978-983 

 to braehiation, 980, 998 

 Postural regulation, amplification of, 13 

 best, 260, 261 



relation of, to coordination, 221 

 to pallio-pontile connections, ^8 

 Posture, adjustments of, in lemur, 44 

 relation of, to cerebellum, .Si'i 

 in tarsius, 87 

 in baboons, 294, 317 

 erect, in ape-man of Java, 877, 881 



complexity of sensory mechanism in, 881 

 relation of, to parietal lobe, 881, 882 

 to cerebral peduncle, 1021 

 to development of foot, 1021 

 first shown in gibbon, 1- 

 in lemurs, 27 

 in man-like apes, 17 

 relation of, to balancing, 264 

 in lemur, relation to pallio-pontile connections, 58 

 in macaqvies, 349 

 in mycetes, relation of hand to, 214 



relation of, to coordination, 224 

 in orang, 486 



regulation of, by cerebellum, 816 

 in tarsius, 87 

 Pottery, introduction of, 766 

 Pre-C'hellean man, implements of, 747, 751 

 life of, 747-749, 751, 752 

 time of, 747, 749, 751, 753 

 period, 931 

 Precipitin tests, bearing of, on evolution, 7, lO 

 Predmost man, brain of, 921, 922 



life and art of, 918-921 

 Predorsal bundle, in dog-headed baboon, 311, 313, 

 316, 326, 327, 329. 330, 333. 340 

 in gibbon, 426-441 

 pages 475-1120 in Volume II. 



