344 
J. A DETLEFSEN AND E. ROBERTS 
tive. Whether non-disjunction has any necessary relationship 
to our result will be discussed in a subsequent paper. 
TABLE 3 
Series B: low selection 
5 
< 
Hi 
THE DISTRIBUTION OF CROSSOVER VALUES 
IN EACH GENERATION 
THE TOTAL POPULA- 
TION IN EACH GENER- 
ATION 
« B, 
g B, 
z, 

P3 
» 
n 
S 
Z 
34 
H S 
a, 
ii 
THE SELECTED PAIR 
o 
1? 
W 
o 
- 
10 
- 
10 

in 
to 
3 
10 
"5 

'tj* 
10 
CO 
10 

> 



"3 
1 
> s 
a 
It 

OR SELECTED EN 
MASSE GAVE 
Fi 
5 
3 
10 
6 
3 
2 
2 
2,056 
7,189 
28.60 
211 A 
61: 219 = 28.75 
F2 
1 
129 
530 
24.34 
129: 530 = 24.34 
Fs 
47 
1 
1 
1 
9 
5 
8 
7 
6 
6 
2 
1 
2,204 
8,089 
25.02 
172.1 
175: 645 = 27.13 
F4 
1 
330 
1,141 
28.92 
330:1141 = 28.92 
F5 
82 
1 
1 
1 
4 
19 
17 
5 
19 
11 
2 
5,798 
23 ,618 
24.55 
288.0 
48: 230 = 20.87 
Fs 
1 
1 
379 
1,411 
26.86 
296:1130 = 26.19 
F7 
61 
1 
1 
1 
4 
4 
18 
13 
9 
8 
1 
1 
5,490 
21 ,974 
24.98 
360.0 
36: 251 = 14.34 
Fs 
i 
1 
1 
1 
650 
2,858 
22.74 
217:1185 = 18.31 
F9 
83 
1 
12 
12 
13 
17 
13 
9 
3 
2 
1 
3 ,230 
17 ,550 
18.40 
211.4 
17: 276= 6.16 
Flo 
1 
^ 
2 
1 
595 
3 ,502 
16.99 
191:1179 = 16.20 
Fu 
84 
3 
6 
13 
24 
14 
10 
10 
3 
1 
1,896 
11 ,937 
15.88 
142.1 
5: 96= 5.20 
Fn 
3 
3 
1 
1 
815 
4,558 
17.88 
66: 512 = 12.89 
Fl3 
63 
3 
9 
13 
16 
10 
6 
5 
759 
7,439 
10.20 
118.1 
15: 197= 7.61 
Fl4 
1 
3 
1 
1 
149 
790 
18.86 
25: 207 = 12.08 
Fl5 
1 
68 
609 
11.17 
68: 609 = 11.17 
F16 
79 
5 
7 
22 
29 
12 
2 
1 
1 
1,416 
14 ,765 
9.59 
186.9 
12: 169= 7.10 
Fl7 
6 
^ 
642 
6 ,027 
10.65 
122:1009 = 12.09 
F18 
74 
6 
5 
28 
22 
9 
1 
2 
1 
1,195 
12,166 
9.82 
164.4 
4: 77= 5.19 
Fl9 
3 
9 
4 
2 
975 
8,786 
11.10 
47: 464 = 10.13 
F20 
52 
4 
5 
12 
16 
9 
5 
1 
641 
6 ,533 
9.81 
125.6 
20: 179 = 11.17 
F21 
» 
1 
5 
5 
1,108 
11 ,407 
9.71 
199:2027= 9.82 
F22 
67 
3 
6 
15 
22 
12 
7 
2 
1 ,232 
11,717 
10.51 
174.9 
1: 63= 1.59 
F23 
1 
2 
2 
1 
392 
3,649 
10.74 
51: 768= 6.64 
F24 
47 
10 
13 
16 
5 
3 
431 
6,801 
6.34 
144.7 
0: 107= 0.00 
F25 
1 
1 
4 
1 
223 
3,119 
7.15 
39: 454= 8.59 
F26 
38 
5 
13 
12 
6 
1 
1 
280 
3,903 
7.17 
102.7 
6: 141= 4.26 
F27 
1 
1 
65 
1,152 
5.64 
43: 873= 4.93 
F28 
46 
10 
8 
12 
7 
6 
3 
215 
2,650 
8.11 
57.6 
0: 39= 0.00 
F29 
2 
10 
158 
6.33 
8: 129= 6.20 
The Fi sibs from 9 53 were mated in thirty-four pairs and 
gave as a whole a crossover value of 28.60 per cent (table 3). 
