304 



STUDY OF BRAINS OF SIX EMINENT SCIENTISTS AND SCHOLARS. 



TABLE A. 



MeASUEEMEKTS 01'' THE BRAINS OF THE SiX SCIENTISTS AND SCHOLARS DESCRIBED IN THIS jMeMOIR, TOOETHEE WITH THOSE OF THE BRAINS OF 



Major J. W. Powell, Dr. E. C. Seguin, and George Francis Train, compared with the Averages obtained in 

 THE Brains of Ten Ordinary Men Tabulated in Table B. 



Name 



Age 



Brain-weight (grams) 



Brain-length 



Brain- width 



Cerebral index 



Horizontal circumference 



Width, left hemicerebnim 



Width, riglit liemicerebriim 



Left occipito-temporal lengtli 



Right occipito-temporal length 



Length of callosum 



Percentage of callosal length compared with brain- 

 length 



Left centro-temporal height . . 

 Right centro-tem])oral height 

 Left centro-ol factory height .. 

 Right centro-olfactory height 



Arc Measures: 



{Frontal are 

 Parietal arc 

 Occipital arc . . . . 

 {Frontal arc 

 Parietal arc 

 Occipital are .... 



Cerebral Indices: 



( Frontal index 



Left i Parietal index 



( Occipital index 



C Frontal index 



Right i Parietal index 



( Occipital index 



Horizontal Distances: 



(Expressed in eentesimals of the hemicerebral length) 

 From the cephalic point to — 



' I. Tip of temporal lobe 



Ijcft 2. Sylvian-presylvian junction 



Lateral -I 3. Ventral end of central fissure 



Aspect 4. Sylvian episylvian junction 



. 5. Caudal point 



Left 



Mesal 

 Aspect 



6. Frontal edge of callosum 



7. Porta (Foramen of Jlonro) 



8. Dorsal end of central fissure 



9. Dorsal intersection of paracentral f . 



10. Caudal edge of callosum 



11. Oceipito-ealcarine junction 



L 12. Dorsal intersection of occipital f . . . 



Joseph 

 Leidy 



67 

 1545* 



18.2 



13.4 



74.9 



51.0 



6.7 



G.7 



13.2 



13.3 



8.5 



46.7 



11.2 

 11.6 

 10.1 

 10.2 



16.0 

 7.2 

 5.9 



16.0 

 6.5 

 6.8 



54.95 



24.74 

 20.27 

 54.60 

 22.18 

 23.12 



28.8 

 33.8 

 40.5 

 67.2 

 100 



18.8 

 40.2 

 57.5 

 70.0 

 66.6 

 75.5 

 87.2 



Philip 

 Leidy 



53 



I4I5 



15.9 



12.2 



77.2 



46.2 



6.1 



6.1 



11.9 



12.0 



8.0 



50.6 



10.4 

 10.5 



14.3 

 5.4 

 5.8 



14.5 

 5.0 

 6.0 



50.1 

 21.2 

 22.7 

 56.8 

 19.7 

 23.5 



25.5 

 28.7 

 40.1 

 50.0 

 100 



16.9 

 37.6 

 59.2 

 66.2 

 67.5 

 72.6 

 88.5 



A. J. 

 Parker 



36 



1475* 



17.3 

 12.6 

 73.6 

 48.0 



13.3 

 13.7 

 7.15 



41.5 



10.2 



10.3 



9.2 



9.2 



14.0 

 5.5 

 5.5 



14.0 

 6.0 

 5.0 



56.0 

 22.0 

 22.0 

 56.0 

 24.0 

 20.0 



25.9 

 30.5 

 42.0 

 60.5 

 100 



57.5 

 65.1 



84.1 



U. 



Allen 



56 

 1531 



16.8 



14.1 



83.9 



50(48) 



7.1 



7.0 



12.0 



11.6 



8.0 



47.6 



9.5 

 9.1 



8.7 

 8.4 



13.0 

 4.5 

 6.0 



14.0 

 4.0 

 5.5 



55.3 

 19.1 

 25.6 

 59.0 

 17.0 

 23.5 



E. D. 

 Cope 



57 

 1545 



16.5 

 13.5 



81.8 



47.3 



6.8 



6.6 



12.8 



13.0 



7.2 



43.7 



10.5 

 10.5 



8.7 

 8.7 



15.5 

 3.1 

 5.0 



15.5 

 3.0 

 5.0 



65.6 

 13.1 

 21.2 

 65.9 

 12.8 

 21.3 



23.6 

 29.1 

 43.6 

 60.6 

 100 



21.7 

 40.0 

 67.9 

 72.7 

 65.4 

 78.7 

 87.2 



Wm. 

 Pepper 



1593 



18+ 

 12.3 



50.0 



6.1 



6.2 



13.3 



13.7 



8.6 



47.7 



8.7 

 8.5 

 6.7 

 7.0 



14.5 

 5.5 

 6.0 



13.6 

 6.8 

 5.6 



55.7 

 21.1 

 23.1 

 52.3 

 26.1 

 21.5 



J. W. 



Powell 



68 

 1488 



17.4 



13.8 



79.3 



50.3 



7.1 



6.7 



13.6 



13.0 



7.4 



42.5 



lO.I 



10.4 



7.7 



8.0 



15.5 

 5.0 

 5.3 



16.0 

 5.0 

 5.0 



60.0 

 19.4 

 20.5 

 61.5 

 19.2 

 19.2 



23.0 

 31.0 

 40.0 

 63.7 

 100 



2.01 

 40.2 

 61.2 

 64.9 

 63.2 

 57.3 

 86.7 



Avs. of 

 9 Emi- 

 nent 

 Men 



54.2 

 27.1 



18.7 



25.6 

 29.1 

 44.0 

 60.0 

 100 



20.0 

 42.5 

 65.7 

 70.3 

 68.6 

 77.0 

 91.4 



57.0 



58 

 1513 



17.2 



13.2 



78.7 



49.4 



6.5 



6.4 



13.1 



13.1 



7.7 



45.5 



10.2 



10.3 



8.6 



8.8 



15.0 

 5.3 

 5.3 



15.0 

 5.6 

 5.6 



57.2 

 20.1 

 22.7 

 57.5 



Avs. of 



lOOrdi- 



nary 



Men 



33 

 1443 



17.2 

 13.9 

 81.0 

 50.2 

 6.93 

 6.98 

 13.3 

 13.1 

 7.26 



41.3 



10.8 



10.9 



8.9 



9.0 



15.5 

 5.7 

 5.7 



15.5 

 5.5 

 5.9 



57.7 

 21.0 

 21.3 

 57.7 

 20.4 

 22.1 



24.0 

 30.4 

 44.4 

 60.5 

 100 



22.0 

 41.2 

 63.9 

 68.2 

 64.2 

 74.7 

 86.2 



• Estimated brain-weight. 



Note. — Blank spaces indicate that the measurement could not be made or, because of distortion while hardening, was not available for 

 the purposes of comparison. The absolute measurements of the brains of the eminent series are often below those determined in the brains 

 of the ordinary series for the reason that most of the former were preserved in alcohol or mixtures containing alcohol, and therefore 

 producing more or less shrinkage, while the latter were all preserved in formaldehyde and underwent little or no shrinkage. The figures 

 expressing relativity (in eentesimals or percentage) are the most useful for analysis. 



