199 Humbert. 
We see here that so far as height and width are concerned the 
constants are no larger for the lines from injected capsules than for 
those from the uninjected. With the other two characters the treat- 
ment has increased the variability uniformly. It is also of interest 
to note that the two treatments of copper nitrate produced about 
an equal effect in each case both on the standard deviation and the 
coefficient of variability. 
Plant No. 250—2. 
Height 
Pedigree Chem. Sti Dev. Coef. of Var. 
250—2 c 610 CuSO, 5-267 + 194 8.30 + 305 
55 2a — 5.218 + 176 8.04 + 270 
Width 
a 2c 610 CuSO, 4.151 + 153 12.16 + 454 
re 2a —_ 3-498 + 18 10.20 + 347 
Number of Branches 
2c610 CuSO, 2.272 + 083 11.61 + 432 
rs 2a — 1.546 + 052 7.87 + 265 
Number of Seed Pods 
| 62 COLO CuSO, 47-640 + 1.753 21.39 + 822 
D 2a _ 51.299 + 1.730 22.99 + 815 
In this case both the standard deviation and the coefficient of 
variability are much larger for the plants from copper sulfate treated 
capsules than for those from untreated capsules, for three characters, 
and less for the character “number of seed pods’’. The treatment has 
increased the variability of the plants. 
Plant No. 250—5. 
Height 
Pedigree Chem. St. Dev. Coef. of Var. 
250—5 c 624 ZnSO, 5-271 + 201 8.91 + 312 
» 50016 CyHCl,0 + H,O 3:939 + 253 6.11 + 393 
, 5a —_ 5.035 + 170 7.71 + 260 
Width 
” 5 0624 ZnSO, 5.039 + 192 14.83 + 576 
or S@ilchde C,HC1,0 + H,O 3.274 + 210 8.97 + 577 
5 5a — 4.211 + 142 12.38 + 423 
Number of Branches 
» 50624 ZnSO, 2.159 + 082 11.17 + 430 
5c 616 C,HC1,0 + H,O 2.022 + 130 11.4I + 743 
5a —_ 1.481 + 050 7.77 + 262 
