158 BOTANICAL GAZETTE [SEPTEMBER 
two primordial leaves of the normal ancestral strain than it isin the 
two to seven leaves of the tetracotyledonous strain. The percentage 
TABLE III 
dsppaioe age SUBSTANCE IN SEEDLINGS OF A TETRACOTYLE- 
RACE AND IN NORMAL PLANTS OF THE 
ANCESTRAL RACE 
PRIMORDIAL LEAVES 
SAMPLE : 
Abnormal Control Difference 
Unclasifed 
Dee ee Pa 7.566 7.982 —o.416 
“ei Oyen Ge eas 7.601 7.940 —0O.339 
=F Rte ale ESOL Na as 8.350 8.509 —0.150 
990s. ee ee, 7.686 7.986 —0.3 
2 leaves 
BRB. Gag ie eae 7.853 8.082 —0. 229 
BOG a a 6.765 6.788 0.023 
3 leaves 
OSS ere ee 7.710% 8.363 —0.570 
Oy I OES 7.541 7.817 —o.276 
5, eas gene Sara 6.976 7.2968 —0. 299 
BOSC Nbc cows cade 6.142 6.724 —0o.582 
BIG. vies oe 5.806 6.242 —0.436 
4 leaves 
Bee Ors ike oc 7712 8.232 —0.520 
BOA ee ee 7.841 7.974 —0.133 
ABO er eels 6.977 7.108 —0.131 
S00. i oe ees 6.238 6.632 —0.394 
MO ct ane 6.026 6.291 —o.265 
Std ee 6.165 6.629 —0o.464 
SIG eee, 5.884 6.348 —0o.464 
5 leaves 
S546; . eee a, 7.659 8.106 —0.537 
208s a Se ee es 7.208 7.685 —O.477 
S07 a ee 6.831 7.143 —0.312 
SOO. Ss ee. 6.175 6.562 —0. 387 
Sal oe. 5.936 6.260 —0.324 
6 leaves 
SEO ee cea vee 7.412 677 —0. 265 
B0Qc Se 7073 7.258 —0,185 
GOP aa Pe de 6.238 6.850 —0o.612 
7 leaves 
SEQ Ub aa) Ve 7..620 7.892 —0.272 
Epicotyl 
SAA ie eee. 7.283 7.398 “OL LTS 
BAG. oes tk 7.505 7. Sar —0,036 
BAB ee Cree: 7.205 7.423 —o,128 
B50 5 i eee ees 7.2 7.425 —0.118 
pe ye Spa eo eas e 8.834 9.083 “0.249 
values show considerable variation from sample to sample. As 
might have been expected on a priori grounds, the deficiency of 
