1 1 16 



INDEX 



Trigeminal nerve, in lemur, 57, 50, (>$ 



in man, 820, S24, 829, 841 



in mycetes, 224 



in orang, 523, 535 



in Pitliceus rhesus, 379, 380, 381 

 motor nucleus of, 394 



in tarsius, 120 

 Trigones, vagal, in orang, 543 

 Trigonum hypoglossi in chimpanzee, 574 



in gibbon, 419 



in gorilla, 656 



in orang, 501, 545 



in Pithecus rhesus, 361 

 Trigonum olfaetorium, in elilnipanzee, 570 ^ 



in gibbon, 413 



in gorilla, 649 



in lemur, 33 



in man, 791, 945 



in marmoset, 60 



in mycetes, 206 



in orang, 496 

 Trinil race, 73; 



Trochlear decussation in tarsius, 124 

 Trochlear nerve, in gibbon, 440, 456 



in lemur, 61, 62, 6, 



in man, 824 



decussation of, 3S2 

 function of, 382 



in marmoset, 173, i''4, i"5 



in mycetes, 224, 225 



in Pithecus rhesus, 362, 381 



in tarsius, 120, i2t 



significance of course ol, 126 

 Trochlear nucleus, in chimpanzee, 599, 622 



in dog-headed baboon, 347 



in gibbon, 440 



in gorilla, 679, 697 



in lemur, 84 



in marmoset, 186 



in mycetes, 236, 242 



in orang, 523, 543 



in tarsius, significance of size of, 126 

 Troglodjtes gorilla, 1 2. See Gorilla. 

 Troglodytes niger, 1 2, 545-622 

 Troglodytes niger, 1 2, 545-622. Sec (i/so Chimpanzee. 



appearance of, 545, 546 



behavior of, 545-566, 590 



of intelligent type similar to that in human 

 beings, 564-565 



coordinalive control in, 555, 566 



constructional ideas in, 557, ?i^. 559-i''6 



Pages 1-474 are in Volume I, 



Troglodytes niger, habitat of, 546 



teachability of, 566, 

 Tuber cinereum, in chimpanzee, 576 



in dog-headed baboon, 301 



in gibbon, 421 



in gorilla, 657 



in lemur, 36 



in man, 792, 833 



in Pithecus rhesus, 364 

 Tubcrcuknu aeusticum, in chimpanzee, 587, 591 



in dog-headed baboon, 304, 316, 317 



function of, 49, 374 



in gibbon, 418, 431, 432 



in gorilla, 655, 656 



in lemur, 48, 50, 51 



in man, 814 



in marmoset, 169, 170 



in mycetes, 220 



in orang, 513 



in Pithecus rhesus, 360, 373, 374 



in tarsius, 1 16-1 18 

 Tuberculum olfaetorium in tarsius, 97 

 Tubcrculum trigcmini, in chimpanzee, 572, 654 



in dog-headed baboon, 301, 304 



in gibbon, 419 



in gorilla, 662, 663 



in lemur, 39 



in marmoset, 163 



in mycetes, 209 



in Pithecus rhesus, 363 



in tarsius, 99 

 Tupaia, 957, 1044. Sec uho Tree shrew. 

 Twelfth nerve. See Nervus hypoglossus. 



T TN(;iNATE tract of Russel. See Tractus unci- 

 ^""^ natus, Hook bundle. 

 Uncus, in chimpanzee, 570 



in Gibraltar skull, 907 



in gorilla, 652 



in orang, 496 

 Ungulates, 7, 650, 970, 1039 

 Upper Paleolithic, 745, 746, 758, 759, 764 

 Utricle, 49, 170, 261, 262, 315, 320, 513, 583, 592 

 Uvula ccrebclli in tarsius, 109, 115 



VAGUS nerve in chimpanzee, 582 

 in gibbon, 419 

 in gorilla, 663-665 

 in tarsius, 108, 109 

 pages 475 1120 in Volume II. 



