98 
ZOOLOGY: G. N. CALKINS 
TABLE 1 
Average Division Rate per Individual, in Ten-day Periods 
10-DAY 
PERIODS 
RIES 
s 
RIES 
03 
W 
<! 
o 
1 
9.8 
2 
6.6 
3 
4.8 
4 
5.4 
5 
7.8 
6 
21.0 
7 
18.6 
8 
20.8 
18.6 
9 
18.0 
18.8 
10 
12.6 
16.2 
11 
13.2 
16.8 
16.0 
12 
14.8 
17.2 
18.2 
13 
14.6 
15.6 
16.0 
14 
13.2 
14.2 
17.0 
15 
15.0 
16.4 
17.6 
16 
13.6 
15.6 
18.4 
17 
17.0 
17.4 
19.0 
18 
12.8 
18.0 
20.0 
19 
7.4 
13.4 
15.2 
20 
11.0 
14.4 
16.6 
21 
7.0 
12 .8 
14.4 
22 
9.0 
10.4 
13.4 
23 
7.6 
11.4 
14.6 
24 
11.2 
17.6 
18.4 
25 
4.8 
10 6 
12.6 
26 
2.2 
0 0 
10.4 
27 
0.2 
0 R 
> . o 
9.4 
28 
0.6 
o . u 
3.4 
29 
0.2 
7.6 
1.4 
30 
0.0 
6.0 
0.8 
31 
Dead 
6.8 
0.4 
32 
4.8 
0.2 
33 
2.4 
0.0 
34 
0.6 
0.0 
35 
0.0 
Dead 
36 
0.4 
37 
0.4 
38 
0.0 
39 
0.0 
40 
Dead 
19.6 
16. 
17. 
15.8 
14 
19.1 
21.4 
16.4 
18.0 
15.6 
15.6 
11.0 
17.2 
16.6 
15.418.6 
17.817.4 
17.820.4 
17.2 
15.415.8 
17.2 
4 14.6 
412.4 
1.6 14.4 
6 20.6 
17.0 
12.6 
13.4 
13.8 
16.4 
19.8 
20.2 
19.6 
15.8 
16.8 
14.0 
12.8 
14.2 
19.8 
13.8 
15.2 
12.0 
11.8 
10.8 
12.0 
14.6 
9.8 
9.6 
12.0 
8.0 
5.8 
3.8 
2.8 
0.0 
Dead 
18.4 
22.6 
19.4 
11.8 
15.0 
15.8 
14.8 
17.6 
18.0 
11.6 
16.4 
17.4 
14.0 
12.8 
13.8 
20.823.2 
15.; 
16.0 
13.2 
16.2 
18.6 
13.0 16.0 
PARENTAGE 
C series from A78th generation 
D series from A137th generation 
H series from A237th generation 
J series from A3 11th generation 
F series from C86th generation 
I series from F143d generation 
L series from 1199th generation 
