18 AN ANALYSIS OF THE EFFECT OF SELECTION. 
ee 
LE owt ‘56 
Fic. 7. 
Fig. 7.—Means and standard deviations for 868 inbred minus line. 
Fic. 8.—Means and standard deviations for crossbred minus line. 
Fic. 
8. 
TaBsiE 15.—Crossbred Minus Series. 
Generation. n 
gic 'x:atelavele,s ie 323 
| Raa Go ae 688 
Beene an 1,022 
Baan iotetere tie 1,473 
Be saiectctias 1,503 
ge ccicariee 401 
Bie ashore 265 
Pere yetetereiey 245 
Bio's susssye ava. 177 
6,097 
LAL __ PP PP 
M 
-523+0.028 
-297+ 
667+ 
.357 + 
622 
354 
-083 = 
073 
AT5 + 
-020 
.017 
-013 
-014 
-025 
026 
-030 
-039 
0.753+0.020 
- 786+ 
- 829+ 
«735+ 
- 788+ 
. 730+ 
621+ 
. 666+ 
. 767+ 
.014 
.012 
-009 
-010 
.017 
.018 
-021 
.027 
070+0.026 
+0. 
eta] 
eal 
-048 = 
-151+ 
-026 
-142+ 
107+ 
- 230+ 
-191+ 
-021 
-017 
-016 
-033 
-041 
-041 
-049 
1From Fs of the inbred speck line described later. 
Table 16 and figure 9 show the result. 
The break after I's represents 
the same treatment as that given to the 1002 line (p. 10)—4. e., two 
generations of unselected mass cultures. 
This line gives perhaps the clearest evidence of the effectiveness of 
selection that we have yet observed. Reversed selection begun in 
F, was apparently also successful. 
consistently lower means than any other here recorded. 
Finally, the line after F. gives 
