GROWTH OF THE CEREBRAL CORTEX 
TABLE 8 
99 
Showing the observed and corrected values of. the area of the cerebral cortex in the 
sagittal section of the Norway rat brain, accompanied by the data for the correc- 
tion-coefficient in the individual cases and the correction-coefficient for each 
brain weight group. L. F is the longitudinal diameter of the cerebrum 
CORRECTION-COEFFICIENT 
OBSERVED 
GROUP BRAIN WEIGHT AREA 
OF CORTEX ¢ The same 
on fresh brain on slide 
grams mm .2 mm. mm. 
N XI b 1155 18.4 ILL} 10.40 
a 1.160 17.0 12.10 10.15 
1 eS 14.2 12.55 9.60 
1.163 16.5 1.21? 
N XII 
N XIII a .369 16.7 12.95 10.10 
1.369 16.7 ees 
N XIV b 1.407 18.2 13.45 10.50 
g 1.429 16.3 13.05 10.10 
a 1.431 19.1 13215 10.40 
1 1.431 18.1 13.05 10.25 
e 1.437 15.8 12.80 10.05 
k 1.445 19.2 13).35 10.30 
1.430 iar) 1.28? 
N XV ¢ sas le 16.4 12.70 10.10 
e 557 1723 to 10.30 
1.537 16.9 1.30? 
N XVI a 1.619 WZ 13.50 10.20 
g 1.632 16.8 13.45 9.7 
e 1.636 15.9 13.55 10.00 
1.629 16.6 1.35? 
N XVIle 1.710 18.8 13.70 10.40 
g e721 18.7 13.40 10.20 
a 1.738 16.8 13.60 10.40 
c 1.788 20.1 14.20 11.00 
1.739 18.6 eve 
N XVIII ec 1.825 18.1 14.30 10.70 
a 1.833 22.0 14.20 11.50 
1.829 20.1 1.28? 
CORRECTED 
AREA 
OF CORTEX 
mm. 
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