l.ennir 



Tarsius 



jMarinosLt 



iMycetes 



Baboon Nlacaciis 



FIGS. 4-1 TO 481. CROSS SECTION AT THE LEVEL OF THE CAIDAL 



Tlicsc comparisons arc intended to disclose tlie internal eonllguration of corresponding levels in the neiiraxis. 

 each level in the several species. 



[1000] 



