14 
NAOKI 
SUGITA 
TABLE I—Continued 
NO. | eer | SEX BODY WEIGHT | BODY LENGTH | TAIL LENGTH | BRAIN WEIGHT 
7 | Brains mm. mm. grams 
NAc f 254.0 215 180 2.015 
a (1) f 253.1 213 2.089 
253 .6 214 180 2.052 
N XXI g m 331.0 215 195 2.156 
d m 231.8 215 174 2.187 
281.4 216 _ 185 2.172 
N XXII 
N XXIII a m 394.0 256 202 2.345 
394.0 256 202 2.345 
TABLE 2 
Showing the sex, body weight and length, tail length and brain weight of the Norway 
rats used in this study (horizontal sections) accompanied by the averages for each 
brain weight group 
NO. 
N XII 
NXE b 
IN=XVb 
d 
| 
eee ae SEX | BODY WEIGHT | BODY LENGTH 
grams mm. 
(1) m 20.0 85 
(2) | m 17.0 83 
(0) am 20.7 87 
19.2 85 
(3) m B30). 71 108 
85.7 108 
(4) m 31.7 103 
(3) m 36.7 111 
(3) | m 38.4 115 
(Gy ht 43.8 126 
(4) | m 34.7 108 
Be Al 113 
m 48.5 
m 54.1 
51.3 
TAIL LENGTH 
BRAIN WEIGHT 
mm. 
42 
64 
41 
49 
101 
101 
grams 
1.133 
1.160 
1.199 
1.164 
1.348 
1.343 
407 
.428 
443 
475 
481 
447 
er oy 
1.511 
1.529 
1 520 
