TABLE 
5 
Giving for each litter group in this study the average brain weight and the average 
measurements L.G, W.B and Ht. of the cerebrum, each compared with the corre- 
sponding standard values for the same brain weight, calculated by the use of the 
formulas given by me (Sugita, ’17). 
are given at the foot of the table. 
The averages for the test and control groups 
AVER-— W. B. E.G: Ht. 
SERIES, LITTER AND TEST AGE 
GROUP CONTROL BRAIN 
WEIGHT |Observed|Standard |Observed| Standard |Observed| Standard 
grams num. mm. mm. mm. mm. mm. : 
Series I 
IN G5 fein (oly at aol 0.584 | 10.79 | 10.94 9.69 9.20 6.99 7.06 
h eS IE O24s SRO ae MeaGO | D2eSOn|e12e30. 8.45 §.70 
b, e, g (Goal OR74 05 63) |e SOF NON | 1On6S oO 7.68 
1 CH M2785 MBE Soe |e AOG alse lone sabi 8.95 9.30 
Series [ 
Bya, cent ‘veal OGLE | EE 11 28 |) 10. Zo 9.96 7.36 7.38 
1 SUS UE PDO WIS 2I0) || hos Ths PA ested AE AO) 8.50 SEuo: 
b, d Cr 0.543 | 10.50 | 10.78 ORS 9.18 6.90 6.95 
(x lal Cee AA SRA ele Sull boron elonaas 8.68 9.00 
Sertes I 
Cran @ Gl ARS EOS RTO TS AON ea 8.70 §.88 
b, e CH SISO eles ON TS 63e ese 33 8.83 9.40 
Series I 
DD Fancy. Alert OR Sr EO er ee i725 10280 7.98 7.92 
e ADEIUE | TSO CLO GO) |) PA ray |) TAR 8.60 8.86 
b Cra OLSON 2 25a et2260.\) 140) | tt 66: 8.00 8.20 
f Cholla 2200 Soon eisesO)| 13230) 13.05 8.80 9.20 
Series I 
Ka, b, ¢, d plat Once || WACS |) wk /Al | Maes |) POL KG 8.29 8.10 
g, h AR OL |) We MAPS) asta os AO PISA GE iO) 8.98 8.95 
e, f (Oj, JOE | Te 835 Bs TSAO De CASI ARCs) 8.88 9.05 
Series II 
F a, b ALi OFSSZe eUZR00N i eroSn pile 50 a3 7.95 8.05 
e-l AU, JE |) POE | UBIO Ges) ey bl 2.98 9.30 ils 
Series III 
G a-g alee: 0.844 | 12.22 | 12.46 | 11.46 | 11.32 8.13 §.69 
h-j WW, WE | ab aE) aes Pare dh aless ates |) May UBS |) G0) 8.95 9.00 
Average Baal 0.753 | 11.65 | 11.98 | 10.92 | 10.60 7.78 7.87 
(Ser. I-III) AGMA OF elise leaner oncom| tel 2 equ ZeG 2, 8.78 §.90 
Average } (Opa ORS AG ee 76N) TOR62 5 OEZS 7.47 7.61 
(Ser. I) ©, IW) UPR) WB SEO 183.1) Tes 0s 8.83 9.19 
