Table 29.—Summary of the results of thirteen generations of minus selection, based on Tables 16-28.
Generation.
No. of offspring.
Mean, parents.
Mean, offspring.
Standard deviation, parents.
Standard deviation, offspring.
Correlation, parents-offspring.
Absolute regression of offspring on parents.
Advance of parents.
Advance of offspring.
1
5
1.46
1.00
.208
.515
.46
2
13
1.41
1.07
.342
.493
-.033
.34
-.05
.07
3
19
1.56
1.18
.196
.484
.206
.38
.15
.11
4
32
1.69
1.28
.190
.460
.020
.41
.13
.10
5
70
1.73
1.41
.233
.500
.184
.32
.04
.13
6
1,25
1.86
1.56
.185
.488
.164
.30
.13
.15
7
1,68
2.01
1.73
.132
.352
.143
.28
.15
.17
8
1,72
2.05
1.80
.107
.283
.094
.25
.04
.07
9
1,59
2.11
1.92
.184
.285
.059
.19
.06
.12
10
1,45
2.18
2.01
.255
.242
.158
.17
.07
.09
11
98
2.30
2.15
.229
.349
.081
.15
.12
.14
12
1,03
2.44
2.23
.310
.372
.406
.07
.14
.08
13
57
2.50
2.39
.177
.317
.235
.11
.06
.16
Total
11,704
Table 30.—Mean grade and number of offspring produced by parents of a particular grade in each generation of the minus selection series, based on Tables 16-28. The grade of the parents is indicated at the head of each column. In the body of the table is recorded the mean grade of the offspring (in light-faced figures) and the number of offspring (in heavy-faced figures).
Generation.
Grade of parents; below, grade and number of their offspring.
Total number of offspring.
1¼
1⅜
1½
1⅝
1¾
1⅞
2
2⅛
2¼
2⅜
2½
2⅝
2¾
2⅞
3
1
1.34
.85
1.37
1.05
8
31
6
10
55
2
1.17
1.45
1.11
0.67
1.09
1.10
17
5
37
3
27
12
132
3
1.05
1.04
1.31
1.22
1.26
1.96
20
28
28
48
63
3
195
4
1.56
1.16
1.31
1.36
1.34
1.18
1.36
4
29
59
40
93
95
9
329
5
1.50
1.25
1.35
1.30
1.64
1.52
1.80
51
53
54
262
143
109
5
701
6
1.34
1.46
1.49
1.59
1.58
1.52
1.82
24
94
244
502
283
85
11
1,252
7
1.55
1.67
1.65
1.72
1.74
1.93
1.62
1.88
2.28
1.87
5
32
330
969
260
41
4
15
18
6
1,680
8
1.84
1.81
1.86
1.87
1.87
1.92
1.67
19
1170
377
36
30
17
6
1,726
9
1.90
1.93
1.93
1.91
2.07
811
403
148
175
53
1,591
10
1.96
2.00
2.04
2.05
2.13
2.15
1.95
2.18
478
474
217
119
67
49
27
20
1,451
11
2.08
2.15
2.13
2.16
2.21
2.20
2.26
1.95
51
183
318
268
81
52
26
5
984
12
1.98
2.14
2.15
2.11
2.24
2.32
2.45
2.51
2.65
10
118
166
230
242
137
42
53
35
1,037
13
2.22
2.35
2.40
2.47
2.55
2.43
2.50
67
170
154
108
31
26
15
571
11,704
Table 31.—Results of a first return selection from generation 6, minus series.
Grade of parents.
Grade of offspring.
Totals.
Means.
Regression.
0
¼
½
¾
-1
-1¼
-1½
-1¾
-2
⅜
2
1
3
4
8
8
26
1.08
-.60
⅝
2
2
3
4
10
14
17
20
4
76
1.33
-.71
¾
1
1
2
1
5
1.30
-.65
⅞
2
2
1
4
2
11
1.41
-.63
Totals or means, .60
2
4
6
5
16
18
28
33
6
118
1.28
-.68
Table 32.—Results of a second return selection from generation 6, minus series.