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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. XXXII. 



again the smaller relative proportions of the measnrenient in the 

 Indians than in the whites and negroes of a similar head form. A 

 disadvantage to this measurement consists in the variation in the region 

 just anterior to the pituitary fossa/' 



FORAMEN CCECUM TO PITUITARY FOSSA. 



Length from foramen caecum to jyituitary fossa. 



Relation of length from foramen cceciun to jyituitary fossa, to the mean ventral cninial 



length {the latter = 100). 



n4 cases only. 



GREATEST VENTRAL FRONTAL BREADTH. 



Finally, an effort was made to measure the greatest frontal ventral 

 diameter corresponding to the greatest breadth of the frontal lobe. 

 This measurement could be more profitably taken on the brain itself, 

 or on casts of the frontal part of the cranium. There is found in 

 almost every skull, on each side, and just anterior to the coronal 

 suture, a marked depression, which probably corresponds to the great- 

 est expanse of the frontal lobe, but definite landmarks from which to 

 measure are lacking. Notwithstanding this difficult}^, certain inter- 

 esting results have been arrived at, namely: 



« See A. Hrdlicka, Dimensions of the Normal Pituitary Fossa in the White and the 

 Negro Races; Arch, of Neurology and Psychopathology, Utica, N. Y., I, No. 4, 1898. 



