GROWTH OF THE CEREBRAL CORTEX 
TABLE 1—Continued 
CORRECTION-COEFFICIENT 
OBSERVED CORRECTED 
GROUP BRAIN WEIGHT AREA AREA 
OF CORTEX L. F in fresh The sameon OF CORTEX 
brain slide 
grams mm .* mm. iJ mm. mm.2 
Vive 0.610 12.0 9.35 8.35 14.9 
a 0.617 10.7 9.25 7.95 14.4 
e 0.690 15.0 9.60 9.00 leans 
0.639 12.6 iii 15.5 
Vila 0.740 is), 2 10.50 9.80 18.1 
b 0.760 IDS 10.65 8.50 Sra 
0.750 IUDSAD tee Hii 
VIII a 0.800 14.4 10.50 9.25 18.5 
h 0.805 13.8 10.90 9.20 19.4 
b- 0.822 16.2 10.45 9.60 1G=2 
Cc 0.849 18.0 10.50 9.70 Alot 
k 0.870 15.1 10.95 9.40 20.5 
d 0.898 730 11.45 10.15 21.6 
0.841 15.8 i Ge 20.1 
Ix d 0.959 17.9 11.60 10.50 21.8 
e 0.960 16.9 11.40 9.85 2259 
a 0.972 15.4 11.30 9.70 20.9 
(10 days) 0.964 16.7 Hele ENE 
xX a 1.033 13.9 11.90 9.40 DOES 
b 1.036 15.9 11.85 9.85 Deval 
e 1.051 io 12.05 10.05 25.0 
1.040 15.8 1.22 23.8 
XI a OM Nise 2.00 10.00 Zea 
b 1.189 18.8 50 10.25 28.0 
Cc 1.193 19.1 65 10.50 2128 
d 1.195 16.0 2.60 10.00 25.4 
(20 days) rpg 17a8 1.22 26.6 
“XII ¢ 1.234 18.4 12.30 10.35 26.0 
a 1.2738 lye 7/ 2.45 9.65 26.2 
1.253 HGf il 1.247 26.1 
XIII a 1.301 18.7 13.00 11.10 20 
g 1.307 15.6 12.95 10.00 26.2 
b 1.327 17.2 13.20 10.50 2i.2 
c 1.346 17.8 13.00 10.10 29.5 
h 1.392 21.9 13.45 11.60 29.5 
il YD) 18.2 1.23? Ry Ao 
