X LIST Ol ILLUSl RATIONS 



Figure Pace 



54. Baboon. Level of the superior colliculus 330 



55. Baboon. Level of the optic ciiiasm 332 



56. Baboon. Level of the anterior commissure 333 



5-. Dorsal surface of the gray matter of the brain stem, Papio cynocephalus (color). 33- 



58. Lateral surface of the gray matter of the brain stem, Papio cynocephalus (color). 339 



59. Ventral surface of the gray matter of the brain stem, Papio cynocephalus (color) . 341 



60. Macacus rhesus. Full-grown monkc\ aiui \oung 351 



61-164. liand and foot of Macacus riiesus 352, 353 



65. Dorsal surface of brain of Macacus rhesus 358 



66. Base of brain of Macacus rhesus 359 



6". Left lateral surface of brain, Macacus rhesus 360 



68. Right lateral surface of brain, ALacacus rhesus 361 



69. Ventral surface of brain stem, Macacus rhesus 362 



"O. Dorsal surface of brain stem, Macacus rhesus 363 



"I. Macacus. Le\el of the pyramidal decussation 366 



"2. Macacus. Le\ el of caLidal limit of dorsal sensorx nuclei 36'' 



73. ALacacus. Le\'el of caudal limit of inferior olivary nucleus 369 



"4. ALacacus. Level through middle of inferior olivary nucleus 3-2 



-§. ALacacus. Level of the vestibular nuclei - 3~3 



~6. Macacus. Level of the cerebellar nuclei 3~6 



~7. Macacus. Level of the emergence of the sixth ncr\e 3~8 



78. Macacus. Level through the middle of the pons Varolii 381 



79. Macacus. Level of the emergence of the trochlear nerve 382 



80. Macacus. Level of the inferior colliculus 384 



<S[. Macacus. Le\el of the superior colliculus 386 



82. Macacus. Level of the optic chiasm 38" 



83. Macacus. Level of the anterior commissure 388 



84. Ventral surface of gray matter of brain stem, Pithecus rhesus (ro/or) 393 



85. Dorsal surface of gray matter of brain stem, Pithecus rhesus (color) 395 



86. Lateral surface of gray matter of brain stem, Pithecus riiesus (color) 397 



87. 188. Hylobates syndactylus (gibbon) 406, 407 



89-192. Hand and foot of Hylobates syndactylus 408,409 



93. Dorsal surface of brain, H\lobatcs hoolock 414 



94. Base of brain, Hylobates hoolock 415 



95. Left lateral surface of brain, Hylobates hoolock 416 



96. Right lateral surface of brain, H>lobates hoolock 41:' 



97. Ventral surface of brain stem, Hylobates hoolock 418 



98. Dorsal surface of brain stem, Hylobates hoolock 419 



99. Gibbon. Level of the pyramidal decussation 422 



200. Gibbon. Level of the caudal extremity of the inferior olive 425 



201,202. Gibbon. Level through the middle of the inferior olive 428,429 



203. Gibbon. Level of the vestibular nuclei 431 



204. Gibbon. Level of the cerebellar nuclei 433 



