III4 



INDEX 



Superior temporal sulcus in baboon, 296, 298, 2(j<) 



in gibbon, 413, 415 



in lemur, 29, 34, 36, 37 



in marmoset, 158 



in mycetcs, 202-207 



in orang, 494 

 Supra-orbital concavity on basal surface of brain of 



gorilla, 646 

 Supra-orbital torus in Neanclertlial man, 89^, 897, 

 904, 906, 907, 908 



in Rhodesian man, 917 

 Sylvian sulcus. See Sylvius, fissure of. 

 Sylvius, aqueduct of, in chimpanzee, 5-4, 595, 599, 

 601, 622 



in gibbon, 420, 439, 44 T, 45 J 

 griseal investment of, 456 



in gorilla, 656, 674, 676, 679, 681 



in lemur, 33, 62, 63, 64, 83 



in man, 798, 799, 8 [9, 820, 824, 829, 831, 84-, 

 854-858 



in marmoset, 17,, i~~, 1-9, ii)o 



in mycetes, 225, 242 



in orang, 499, 523, 526, 543 



in Papio cynocephalus, 321, 32-;, 329, 346, 347 



in Pithecus rhesus, 362, 3~9-383, 38^, 402, 403 



in tarsius, 126, 149, 150 

 Sylvius, fissure of, in Ape man of Java. 869, 874, 

 876 



in chimpanzee, 567 



in Dawn man, 887, 888 



in dog-headed baboon, 296-299 



evolutional significance of, 954, 955 



in gibbon, 412-417 



in gorilla, 645, 648 



in human brain, 779-782, 783, 786, 788 



in lemur, position of, 29, 31, 34, 36, 37, 954 



in marmoset, 1 58-1 61 



in mycetcs, 202-207 



in Neanderthal man, 897, 900-904 



in new-world simians, 959 



in orang, 493, 496 



in Pithecus rhesus, 355, 358, 360, 361 



in Predmost man, 922 



in Rhodesian man, 913, 914 



in tarsius, 92-96, 957 

 Symington on reconstruction, 862 

 Syncrgia, 838 



definition of, 251 



relation of, to cerebellum, 251, 252 

 Synergic units, 251 



Pages 1-474 are in Volume I, 



' I "AIL, absence of, in gibbon and great anthro- 

 -'■ poids, 13, 17, 405, 482, 706 

 in baboon, 289 

 in cetacea, 213 

 in kangaroo, 213 



in lemur, significance of, 12, 23, 24, 43, 44, 46 

 in marmoset, 153, 162, 166 

 in mycetes, 191-201, 203, 209, 213, 258 

 in Pithecus rhesus, 370 

 relation of, to clava, 39 



to nucleus of BischofT, 213, 257 

 to nucleus of Goll, 43, 46, 105, 162, 706-708 

 in tarsius, 105, 106 

 Tarsiers, 12, 18, 22, 423. See also Tarsius. 



below lemurs and new world monkeys in organiza- 

 tion of visual function, 130 

 lower primates, begin evolutional advance to 

 human brain, 18, 85 

 Tarsiidae, family of Tarsioidea, 21 

 Tarsioidea, suborder of primates, 21, 85 

 Tarsius, appearance and behavior of, 85 

 brain of, 92-151 

 humanoid, 87 



low development of auditory sense in, 125 

 nail on third toe of, 24 

 not gregarious, 87 

 opinions concerning, 85, 9" 94 

 position of, among primates, 16, 85, 90, 130 

 posture of, 87 

 rotation of head of, 85, 90 

 spectrum, 12, 85-1 ji, 803 

 blood reactions of, 89 

 habitat, 8^, go 



lisseneephalic cerebral hemispheres in, 95, 96 

 mammalian organization of brain stem in, 101 

 measurements of, 95 

 speed in trees, 85, 87 

 tail of, 87 

 Tasmanians, primitive, Keith on, -42 

 Taste, sense of, in primates, 314 

 Tectum of midbrain, in chimpanzee, 620 

 in dog-headed baboon, 344 

 in gorilla, 694 

 in Pithecus rhesus, 383 

 in Tarsius spectrum, 122, 123 

 Tegmentum pontis, 60, 248 



in chimpanzee, 575, 591, 595, 599. f>oo, 603, 616 

 in dog-headed baboon, 325 

 in gibbon, 438-444, 450, 454 

 in gorilla, 673, 6"5 



in human, 81-, 820, 823, 826, 829, 830, 846 

 pages 47S-I120 in Volume II. 



