878 MAN 



general direction of the sigmoid sinus, thus appearing both on the occipital 

 pole and lateral convexity. Above and Ik'Iow it, is the relief of an occipital 

 con\olution. The markmgs on the lelt occipital lobe are less definite. A 

 transverse ridge extends transversely outward from the lambda across 

 either occipital area. This ridge indicates the position ot the lambdoid suture. 

 In comparison with gorilla the occipital lobe of i)ithecaiithropus shows 

 considerable expansion in all diameters. As compared w ith the similar region 

 in modern man this lobe appears much smaller. It seems j)ermissible, how- 

 ever, to presume that in his visual organization the Javan man had acK aiiced 

 a long distance abo\e any of the anthropoids. His visual associations must 

 have been much more e\tensi\'e it it is true, as seems to be the case, that 

 he had real powers of speech. His visuo-psychic functions must lia\e under- 

 gone notable expansion as he began to attach verbal names to what he saw 

 about him, thus la\ ing the foundations of that wide sphere of denomination 

 and enumeration which mankind has created. The telencephalization of 

 vision had made great strides in pithecanthropus. He was capable of a more 

 effective appreciation of his environment and not the least important element 

 in this increased eifectiveness found its expression in the better control he 

 gained over his hands through visual super\ision. The man\ and protoLind 

 innuences arising from such impro\ed visual guidance made themselves felt 

 in innumerable ways upon his jjsychie organization, upon the makeup of his 

 personality and experience, upon his capacity to learn. So also was his entire 

 psychic life affected by the increased facilit\ w ith w hich sensory impressions 

 of sight, of hearing and of bodN sense entered into more complex associations. 



THE TEMPORAL LOBE OF Pill 1 EC AXTHKOIHS EKECTUS 



The temporal loi)e in the a|H'-man brain is little, if at all, represented in 

 the calvarium. Some slight jjortion of the sui)t'rior temporal eoinolution may 

 be detected, but scarcely enough to pirmit of more than a coniectureas to its 



