I I 12 



INDEX 



SpinoccrilxIIar tract, fiinctiiin of, 266 



in lemur, 61 



in marmoset, 166, 167 



in Pithccus rhesus, 381 



in tarsius, 105 

 Spinothalamic tract, in chimpanzee, 578, 583, j86 



in clog-headed baboon, 306-316, 324-330 



in gibbon, 422-432 



in lemur, 42-62 



in man, 806-810 



in marmoset, 167-178 



in mycetes, 2 1 1 -228 



in orang, 503, 507 



in Pithecus rhesus, 366-373, 382-386 



in tarsius, 102-128 

 Splenium of corpus callosum In l)aboon, 297 



in gorilla, 6^1 



in man, 048 



in mycetes, compared with Icnicir niarninset, 204 

 Squirrel, 89 

 Standing on tarsius, 91 

 Stereognosis, 916 



Stereoscopic vision. .SVe Binocular vision. 

 Stratum complexum pontis, in chimpanzee, 592 



in dog-headed baboon, 324, 326 



in gibbon, 436, 439 



in gorilla, 674, 676 



in lemur, 56, 59 



in man, 820, 823, 826, 8jo 



in marmoset, 172 



in mycetes, 223, 224 



in orang, 517, 521 



in Pithecus rhesus, 380 



in tarsius, 124 

 Stratum profundum pontis, in chimpanzee, 592 



in dog-headed baboon, 324, 325 



in gibbon, 436, 439 



in gorilla, 674, 676 



in lemur, 59 



in man, 822, 825, 828, 8^2 



in marmoset, 172 



in mycetes, 223, 225 



in orang, 517, 522 

 Stratum superlicialc griseum in gorilla, 679 



in lemur, 65, 67 



in marmoset, 172, 177 



in mycetes, 223 

 Stratum superlici.ile pontis in chimpanzee, 591, 592 



in dog-headed b.iboon, }2o, 324, 325 



in gibbon, 436, 439 



in gorilla, 674, 676 



Pages I 474 are in Volume I, 



Stratum superficiale pontis in lemur, 56, ^9 

 in man, 820, 823, 826, 850 

 in Pithecus rhesus, 377, 379, 380 

 in tarsius, 124 

 Striae acu.sticae in chimpanzee, 574 

 in dog-headed baboon, 303, 343 

 in gibbon, 419 

 in gorilla, 656 

 in lemur, 40 

 in man, 799 

 in orang, 499, ,-41, ,-43 

 in Pithecus rhesus, 362 

 Structural design, dclinite principle of, regulates 



series of nuclei in brain stem, 374 

 features, comparative review of values of, 725 

 Substantia gelatinosa Rolandi, in baboon, 337-341 

 in gibbon, 426, 455 

 in gorilla, 662, 68,-, 688 

 increase in size in, 43, 46, 47 

 in lemur, 74, 77, 79 

 in man, 804, 810, 824, 841 

 in marmo.set, 183-189 

 in mycetes, 216, 234-239 

 in orang, 516, 533-536 

 in Pithecus rhesus, 379, 393-397 

 relation o(, to substanti.i gelatinosa trigcmini, 74, 



394 

 in tarsius, 136-149 

 Substantia gelatinosa trigcmini. See Rolando, 



nucleus of. 

 Substantia nigra in chimpanzee, 603, 618-621 

 in dog-headed baboon, 328-345 

 function of, 64, 227, 329, 332, 528, 603, 684 

 in gibbon, 443, 444, 452 

 in gorilla, 682, 693, 695 

 in lemur, 62, 64, 66, 68, 75, 79 



approached by reticular formation, 78 



as reconstructed, 73, 81, 82 



relation to pontile nuclear masses, 81 



significance of size of, 64 

 in man, 826-856 

 in marmoset, 176-188 

 in mycetes, 227-240 

 in orang, 528, 540, 542 

 in Pithecus rhesus, 386-401 

 in tarsius, 128-148 

 Sulcus centralis, 30, 36, 37. See also Rolando, fissure 



of. 

 in dog-headed baboon, 296-299 

 in gibbon, 414-41^ 

 in lemur, 50, 31, 34, 36 

 pages 475 1 120 in Volume II. 



