HARRIS: 
INTERRELATIONSHIP IN PHASEOLUS 171 
difference between the sample and the control is —.0813. The differ- 
ences in average weight vary from +.0368 to —.2492. 
TABLE [| 
Mean Green Weight per Plant of Primordial Leaves and of First Compound Leaf 
Primordial Leaves 
] 
| 
| 
First Compound Leaf 
Sample 
Abnormal 
2 .6034 
35 5648 
36 5951 
39 =| -5619 
40 | .6096 
4I | .6068 
42 .5879 
43 .6222 
46 .5956 
47 .7058 
48 | .6389 
49 | .5902 
53 -5402 
54 +5720 
56 -5380 
61 .5193 
64 5853 
65 5747 
66 .5886 
7C .6853 
71 -5639 
72 5565 
73 5933 
Control Difference | 
.7096 —.1062 
.6767 —~ 1 LTO 
.6361 —.0410 
16277 —.0658 
.7052 —.0956 
-7304 —.1236 
-O141 — .0262 
-7508 —.1286 
-7160 — E204: 
.6984 |! +.0074 
272 — .0883 
16674 20772 
5990 | —.0588 
.6530 | —.0810 
.5921 | —.0541 
.5827 — .0634 
.7052 —.1199 
26928") =. 1108 
.6790 | —.0904 
7000)" =—-02T3 
.6059 | —.0420 
6744 | —.1179 
.6140 —.1107 
| Percentage 
Difference 
15.0 
16.5 
Abnormal 
5132 
+5444 
5931 
.5160 
‘5179 
-4877 
.4712 
.5008 
-4645 
.5841 
-5593 
.4960 
-4491 
.4091 
+3994 
-4443 
+4530 
.4402 
.5246 
-4794 
4132 
-3799 
3933 
+5929 
.6188 
.6254 
-5549 
.6138 
.6140 
.7204 
.6115 
.6019 
+5473 
| .6395 
.5851 
-4948 
4547 
.4646 
4811 
.5848 
‘5717 
.5960 
.4998 
-4534 
.4882 
.4887 
Control 
Difference poe SoEse 
| —-0797 | 13.4 
0744" || “352-0 
| —.0323 5.2 
—.0389 7.0 
| —.0959 15.6 
(Sp —=s1263 20.6 
| —.2492 34.6 
| ——LtO7 18.1 
—— lay Aa ee 2eO 
+.0368 | 6.7 
—.0802 | 12.5 
—.0891 15.2 
—.0457 | 9.2 
— .0456 10.0 
| —.CG652 | 14.0 
= O8 089 |e f.0 
—.1318 | 22.5 
SES ty |) 25.0 
—.0714 | 12.0 
— .0204 4.1 
— .0402 8.9 
—.1083 22):2 
— :0954 19.5 
If these differences be reduced to percentages by using the weight 
of the normal plants as a base, as shown in the final columns of each 
section of the tables, it appears that the primordial leaves of the 
morphologically aberrant plants are from 3.0 to 18.0 percent lighter 
«than the leaves of the normal plants in the 22 samples in which this 
relationship between the two types of plants holds for the primordial 
leaves. Thus the percentages are highly variable. 
the 23 determinations is 11.95 percent. 
The average for 
In the case of the first com- 
pound leaves, the percentage reduction ranges from 4.1 to 34.6 with 
an average of 14.06 in the 23 samples. 
Note that the percentage 
shows that the difference between the abnormal and the control sample 
is far less in the case of the single exception, sample 47, than it is in 
Thus it is only 1.1 as compared with an average 
the average series. 
value of 11.95 for the primordial leaves and only 6.7 as compared 
with the average of 14.06 percent in the compound leaves. 
I now turn to a consideration of dry weight. 
