198 NAOKI SUGITA 
TABLE 6 
Giving for each litter group in this study the average age, brain weight, and the 
average cortical thickness in the sagittal and frontal sections. The general average 
cortical thickness was obtained and compared with the standard value for the same 
brain weight, quoted from a previous paper (Sugita, ’17a). The data for each 
individual and for each locality of the cortex were originally tabulated in three full 
tables (tables 6a, 6b and 6c) which are on file at The Wistar Institute and from which 
this table 6 was condensed. The correction-coefficients are given in averages for 
each litter group for each kind of section. The averages for the test and control 
groups are given at the end of the table. 
GaEriON? par oe AVERAGE 
SERIES, LITTER AND oes ie cea GE Dae iehian) (Galak oe 7 sens 
GROUP on AGP | srarn |Correc-| Corti- | Correc-| Corti- | Corti- | ard for 
Bioke AGE |weicHt| tion cal tion cal cal the 
coeffi- | thick- | coeffi- | thick-| thick- | same 
cient ness cient ness ness brain 
weight 
days grams mm. ety mm Rae a 
Series I 
ING, Ba Cl di av, I US Meese) UGG |) Ze ales | aA |p lees || oe @) 
h 40. JOU) a5 1.024 Pal | ibaa ibs} || P25) |) WL Sts. |) il 53 
\ ley Cyl 8— | 0.688} 1.09 | 1.384 | 1.14 | 1.46 | 1.40 | 1.38 
1 (Oe OU) ike 12278) 123) | aie 26) |e 200s Som ees: 
Series I 
B a, ¢c, e, f APR OS ORC Ni ass ales | al ee al ete a4} | if 4) 
1 40 U0) We) T2O52| 20M IRGC R Mas i(alie2 Lon) leo) llerned 
b, d C.I] 6 | 0.543] 1.08 | 1.18 | 1.09 | 1.32 | 1.25 | 1.28 
fe lol 7 ©. Wi as— | 1.744) 15240) 1 s74 4 2-31 |) 2014) LesSsiees8o0 
Series I 
@rancrd A 20) DOS) ae 74s 2 oa Ze OS eles O Gs erie taa 
b, e Ce 22 SO Ti ei7 al alata inferno 
Series I 
Da,ec,d ee L2— | On77S| Teale ee O48 abe 24 |e CON eile 2 leon 
e Ih JE ke 1.089 IA Wika ciety PSO al Seal a ery 
b Cr 9 OersvAO}) eels |) vbatiay beer) al tei |) aleAal |) il @y 
f CF 22 1220 A leis = = = 1.82 
8 EE | (eee Pose Pies Peat ae ee AS ; Jae 
Series I 
13) [oy Gy Cl AMS EAE ie COS{oyAy baal WP abesshq) Ibo 283 |) iL @sy | Ae Wes 
g, h 4h JN) AO PPA) OA aber Pea) | Pan aksy |] al iss | ile) 
e, f Oe IN) TS OH TO) TESS |p algal || Lee | aL ih |) 
