16 AN ANALYSIS OF THE EFFECT OF SELECTION. 
The effectiveness of selection is doubtful, but the line runs con- 
sistently lower than the three plus lines, and reversed selection was 
perhaps effective. 
TaBLE 12.—900, Inbred Minus Line. 
Generation. n M o r Diff. M. 
Bis s.cereieree 130) )|"4. 769 == 0.045. | Ot 71 ==ONOB2 Ih ieee ecsset crete si ener ioum +0.769 
Ret aS eas, 204 | 4.603+ .038 NO OAS OZ Gallvoievouspeveelskegeus steneta + .603 
Fig isysisiensirctaters 256 | 4.578+ .032 .767+ .023 — .021+ .042 | + .976 
ig en ee 194 | 4.959+ .040 .818+ .029 + .155+= .048 | +1.000 
1 ease Soe 243 | 5.124+ .037 .847+ .026 + .032= .043 | +1.255 
Nes. sores Netave 103) |e. 6602] COZ Zal| MAG Sa ODS erste crereretereretetetslone + .660 
Wi ives saheiess 148 | 5.000+ .044 .797+ .031 + .103= .055 | +1.986 
Wertvstevasat 69 | 4.826+ .070 .867+ .050 + .159= .079 | — .420 
Mga aes etosets 271 | 4.576+ .031 -740+ .022 — .005+ .041 | + .644 
Hips sacs. 762 | 4.555+ .019 .769+ .014 — .0O11+ .024 | + .654 
1 Ov ioeratars Oe 340 | 5.141+ .031 .849+ .022 — .142+ .036 | +1.340 
2,720 
REVERSED SELECTION. 
1 OP St er 68 |4.897+ 0.062 |0.750+ 0.044 | ............... —1.103 
Wii ccaicieve were 71 15.4512: 3062 | .7283= “O440\in irc ricites — .549 
Regence one 98 |5.194+ .082 | .488%= .023 | ..........000.- — .806 
237 
868 Minus Line. 
This line is descended from culture 868, which was produced by a 
sepia, Dichet, ebony-sooty female from 856 and a rough male from 
852; 856 was the result of mating a stock sepia, spineless, kidney, 
sooty, rough male to a Dichet ebony-sooty Tamas 
female from 840 (q. v. above, in pedigree of ; 
900 line). 852 was a descendant of the peach, Dorso- | Ofspring. 
spineless, kidney, sooty, rough, and peach- centrale. 
ebony stocks, and (although it did not trace to 0 25 
the Dichet stock) of the same original cultures 5 sf 
as 864, the ancestor of the first inbred plus line 3 0 
(see above). 4 £ 
The offspring of 868 itself were classified for | Total..... 51 
dorso-central bristles, as shown in table 13. 
The data for the succeeding generations are given in table 14 and 
figure 7. 
The numbers of individuals and of generations are rather small, 
for the reason that the line was not very vigorous, and finally died 
out in spite of all attempts to preserve it. It gave the lowest means 
of any line so far discussed. Reversed selection was apparently suc- 
cessful. 
