GROWTH OF THE CEREBRAL CORTEX A 
TABLE 13—Continued 
5 LAMINA PYRAMIDALIS ie LAMINA GANGLIONARIS 
a Cell body Nucleus Cell body { Nucleus 
Eaten Sees TEST 8 ms Aver. diameter | Aver. diameter | Aver. diameter | Aver. diameter 
AND GROUP oe = 3 ; 
c Q se} as} z 3 z as} z og 
y g 2 Es £ & oe q 2 z 
Bee | eel og, | et | MECN dares ee Leni ig 
< = 1S) MD .S) 7) oO MQ 1@) oD) 
daus|grams| uw a bu MU ia a u 
Series IT 
F a, b Ty. I 13 =)0..832/20.8), 238.2 07.1) 19.8 128.5) 87.7" |22.3) 2404 
* cl T. [0)25+)1.204)22.9) 23.9 |18.6) 20.0 |31.0) 37.5 |23.6) 24.4 
Series III 
F a-g T. I /11+)0.844/20.6| 22.5 |17.0) 19.2 |27.9| 29.9 |21.9) 23.5 
h-j TW. U22—)1 154/21 0) 24.2 \16:7) 20.1 |29:0) 3i.6 121.7) 24.5 
Average 
(Ser. I-III) Te MT =|\0.7538\19 25) 12220) 15.9) 18.8 126.1) 9928. |20 2923.7 
(per. diff.) |. (—11.2) (—15.3) (—11.8) (—12.5) 
Average 
(Ser. I-IIT) T. I1/20—|1.107/21.9| 23.9 |17.8} 20.0 |30.4) 31.4 |23.1) 24.4 
(per. diff.) - (= 8.3) (—11.0) (— 3.1) (— 5.1) 
Average 
- (Ser. I) C. I | 8—|0.700}19.3) 20.1 16.0) 17.2 |25.8) 26.7 |20.2) 21.38 
(per. diff.) (29378) (37) | en coe) CAB) 
Average) 
(Ser. I) CMOS 2262204) 289 ASS 20.0! \20c8|) Sips N23cAs 8oe 
(per. diff.) (— 6.2) (— 8.5)! (— 3.3) (— 5.5) 
It is also seen that by underfeeding the nucleus is more affected 
than the entire cell body both in the pyramids (deficiency in 
diameters; T. I groups: cell body 11.2 per cent and nucleus 15.3 
per cent, T. II groups: cell body 8.3 per cent and nucleus 11.0 
per cent) and in the ganglion cells (deficiency in diameters; T. I 
groups: cell body 11.8 per cent and nucleus 12.5 per cent, T. II 
groups: cell body 3.1 per cent and nucleus 5.1 per cent) of brains 
of all weights, while the pyramids are more markedly affected 
than the ganglion cells both in the cell body (deficiency in diam- 
eters on the average of T. I and T. II groups: pyramids 9.8 per 
cent and ganglion cells 7.5 per cent) and in the nucleus (deficiency 
