426 
HAYATO ARAI 
TABLE 7 
Data on body weight according to age 
OO 
BODY WEIGHT OF RATS 
(AVERAGED IN GKAMS) 
(OBSERVED) 
THE STANDARD AGE IN DAYS 
CORRESPONDING TO BODY 
WEIGHT (DONALDSON, 15) 
THE AGE OF RATS (AVERAGED 
IN DAYS) (OBSERVED) 
5.5 1 1 
22.0 18 21 
33.0 jl ; 32 
64.0 50 53 
95.0 88 68 
102.0 | 85 72 
TABLE 8 
The relation between the body length and the number of ova in both ovaries; average 
numbers 
NUMBER OF 
MBER OF OV: 
i a - CORPORA LUTEA. 
NUM- INTER- WEIGHT 
BER VAL OF NON OF BOTH ra] 3 = iS 
OF BODY LENGTH OVA- ton) a 
RATS | LENGTH RIES eS = 3 Ss 2 = 3 nd 
Bo £ g ES $ & od s 
oe Sy eee a ee leg ae 
Rats without corpora lutea 
mm mm. mgm. 
1 47 35,105 35,105 
1 52 27,870 | 382 28,252 
1 60 24,608 | 978 25,586 
2 69-76 13 2.0 | 17,417 | 758 20 18,195 
2 83-89 86 4°4 12,587 | 4387 |) 396 56 | 13,476 
2 95-105) 100 8I2 "9187" 237°) 200"! 112: 95736 
2 {108-122} 115 8.6 | 10,252 | 232) 173 | 113) 10,770 
3  |128-132) 130 9.4 | 10,891 | 207 95 65 | 10,758 
5 188-145) 142] 11.1) 8,718) 168 91 43 | 9,020 
3 |146-148) 147 | 14.1 | 8,697| 216 86 64 | 9,063 
Rats with corpora lutea 
OP WSS=156) 9 bbs |) 28iaral eo wiod || zee ee 92:| 6,168: 21+\ 10 | Net 
4 |162-168} 168 | 36.6 | 8,488} 254) 121 56 | 8,869 TEN ailisye| | = 
2 |171-171) 171 | 45.3 | 5,544) 198 | 119 30 | 5,886| 26] 25] 51 
4 |182-185) 184] 54.7 | 6,218} 179 94 51 | 6,542] 42-| 22) 64 
4 |189-200) 194] 56.6] 4,706). 154 74 31 | 4,965| 48] 20] 63 
1 O15) |) 65.2) 117098) ales 61 21 |) 1,919 | > 90,)\) 189/408 
eee 
