66 NAOKI SUGITA 
TABLE 1—Concluded 
SuakewES CORRECTION-COEFFICIENT GonnEcrEn 
GROUP BRAIN WEIGHT AREA es En AC AREA 
CORTEX L. F in fresh The same on OF CORTEX 
brain slide 
grams, mm.2 mm. mm. mm.2 
XIV a 1.412 UP 13.40 10.40 29.1 
e 1.441 15.2 13.25 10.10 26.2 
b 1.483 21.1 13.30 11.30 29.3 
1.445 17.9 1.26 28.2 
XV a 1.530 17.4 13.70 10.80 28.1 
b 1.542 19.6 13.50 11.40 27.5 
c 1.552 1572 13.70 10.65 28.6 
d 1.5738 20.0 13.70 11.15 30.1 
e 1.574 18.9 13.75 11.05 29.3 
1.554 18.6 1.242 28.7 
XVI a 1.642 18.9 14.10 11.30 29.4 
g 1.643 18.7 14.65 11.60 29.7 
c 1.647 18.7 13.75 11.05 29.0 
e 1.690 eo 13.65 10.70 28.6 
1.656 18.4 1.26? 29.2 
XVII f 1.720 18.3 14.90 11.60 30.2 
a 12721 18.4 13.90 10.90 29.8 
b 1.730 23.5 13.85 70 32.8 
c 1.731 20.8 14.30 11.60 SHES Z/ 
1.726 20.2 1.22 31.1 
XVIII ec 1.817 18.5 15.20 11.50 32.4 
a 1.844 24.7 14.00 12.10 33.0 
e 1.855 21.6 15.05 12.15 33.1 
1.839 21.6 1.22 32.8 
XIX a 1.924 20.6 15.40 12.30 32.3 
1.924 20.6 1.25 82.3 
xX a 2.039 22.6 15.10 12.60 32.5 
b 2.069 745). 1L 15.55 13.20 34.8 
2.054 23.9 92 33.7 
hemisphere and cutting the corpus callosum, the commissura 
anterior and the chiasma opticum (Sugita, ’17 a). On the draw- 
ing of the outline of the frontal section (fig. 2), which was traced 
