264 



STUDY ()K lUiAINS OF ,S1X EMINENT S(;iENTISTS AND SCHOI.AKS. 



is rather narrower than that of the left and of more irregular configuration ; the par- 

 occipital is also smallei-. 'J'he angular and postparietal areas are markedly extensive. 



Mesal Surface. — The precuneus presents a very complex configuration owing to 

 the numerous ramifications of the precuneal and intraprecuneal fissures. The cuneus 

 is of average size and form. 



Fissures of Ihe Temporal Lohc {Lafero-ventral Hurfaec). — I'hesuiDertemporal fissure 

 is less tortuous than that of the left half; the length of the main segment is 9.5 cm. 



Fig. 35. — Dorso-caudal view of the biaiu of Philip Leidy. 



Caudo-dorsad it anastomoses with tlie complex, intermedial-parietal junction. The 

 meditemporal fissure is represented by several zygal segments. The subtemporal, is 

 well marked and long. The collateral fissure is ] 1 cm. long, while the postrhinal is 

 indicated by a shallow groove. 



Gyres of the Temporal Lohc in this half are much more regular in contour than 

 those of the left half. They all tend to preserve a uniformity of width which is in 

 marked contrast to the irregular appearances presentt'd in the left heniicei'el)rufn. 



