5i6 
AMERICAN JOURNAL OF BOTANY 
[Vol. 8, 
varieties, a number of smooth galls were found to be stemless as shown in 
figures 6 A and 6C, which are cross sections of the beets shown in figures 5 A 
and 5C respectively. The warty galls are as a rule stemless. The galls 
in the plants grown in plot "SW" were also of the three types, and the 
arrangement of the vascular bundles in the crown galls appears to depend 
upon the internal structure of the root before inoculation. 
Shortly after the plants of the two plots "E" and "SW" were gathered 
they were carefully washed and weighed. They were loosely wrapped in 
separate pieces of paper and dried in a hot air oven at 100° C. for several 
days and then weighed again. The results are given in table 2. Columns 
I and 2 give the fresh and dry weights of the normal plants from plot ''SW, " 
that is, in the unfertilized soil. 
Table 2. Comparison of weights of Beta vulgaris, vars. Early Model and Egyptian 
Early, grown on plots SW and the roots of which were inoculated with Bacterium tume- 
faciens; controls were growing among the inoculated plants. The inoculations were made 
August 4, iQ2o; the crop was hanested October ig, IQ20 
Plants grown in Plot "SW" (unfertilized soil) 
Plants grown in Plot "E" 
(fertilized soil) 
No. 
Normal 
Root Inoculated 
Normal 
Root Inoculated 
Fresh 
Dry 
Fresh 
Dry 
Fresh 
Dry 
Fresh 
Dry 
I 
5-90 
•50 
24.30 
1.90 
22.20 
1^55 
11.50 
1. 10 
2 
370 
•45 
17^50 
1.50 
27.60 
2.15 
33^10 
3^90 
3 
5-30 
•65 
2.50 
.20 
18.80 
1.20 
38.40 
3.10 
4 
5.50 
.65 
8.40 
•70 
47.2 
3^70 
21.10 
2.05 
5 
9.50 
1.45 
19.40 
1.50 
24.30 
2.10 
29.30 
25.05 
6 
7.60 
.80 
9.80 
.70 
17.20 
1.70 
61.60 
5.30 
7 
9.00 
1. 00 
8.50 
.60 
28.30 
2.70 
17.10 
1.20 
8 
23.80 
2.30 
16.80 
1.50 
27.10 
2.60 
56.10 
4.60 
9 
29.80 
3.80 
5.00 
.60 
28.80 
7.70 
38.10 
3^90 
10 
9.00 
1.30 
8.10 
.60 
19.60 
4.20 
38.00 
3.80 
II 
24.00 
3-30 
10.90 
.90 
54^50 
3.00 
•26.00 
2.70 
12 
14.00 
1.40 
5.00 
•50 
37^50 
2.50 
24.10 
1^50 
13 
540 
.90 
4^30 
.40 
42.20 
.90 
44.00 
2:70 
14 
4.50 
.50 
7.20 
.80 
9.10 
2.25 
96.10 
6.50 
15 
2.40 
.30 
7.90 
.70 
23.40 
1-55 
20.10 
1.40 
16 
6.00 
.60 
5.20 
.50 
21.70 
2.80 
42.10 
3^25 
17 
11.20 
1.30 
6.80 
•65 
34.60 
1. 00 
33-50 
2.40 
18 
39.00 
3.50 
13.00 
5^40 
32.50 
4^50 
19 
9.00 
1.90 
79.20 
3.50 
83.10 
7.00 
20 
10.00 
.90 
46.80 
3-40 
25.70 
2.70 
21 
8.00 
1.70 
20.60 
1. 10 
18.10 
1.50 
22 
12.90 
1.90 
18.00 
2.90 
37.60 
2.90 
23 
20.00 
•45 
33^50 
6.10 
71^50 
6.00 
24 
20.50 
69.50 
•70 
21.80 
1.70 
25 
4.60 
9.70 
18.50 
1.65 
26 
72.10 
6.50 
27 
28.50 
2.45 
28 
36.10 
2.60 
29 
16.00 
1. 10 
Totals 
301.50 
31^55 
167.60 
14.25 
774.40 
66.10 
1,091.60 
115.05 
12.06 
1.26 
9.85 
•83 
30.96 
2,64 
37^64 
3.96 
