260 Bateson . — The Effect of Cross- Fertilization 
to the self-fertilized as ioo to 91 . It may be of interest to 
mention that these plants were crossed very early in the year, 
between February 14 and March 1 , which is rather earlier than 
the season at which they have the best chance of being crossed 
in a state of nature 1 . 
Table III.— Stellaria media. 
Original order. 
Single series. 
A 
B | 
c 
D 
E 
F 
Crossed. 
Self-fert. 
Crossed. 
Self-fert. 
Difference. 
inches. 
inches. 
inches. 
inches. 
inches. 
Pot I 
7 f 
84 
9 t 
+ 1 
8 4 
71 
84 
8| 
4-0 
8 
7 1 
/ 8 
£i 
° 8 
8| 
+ 8 1 
Pot II 
6 
6 
£2 
5 S 
83 
° 8 
+ i 
7-1 
8| 
83 
°8 
176 
7 8 
4 
8 
8-| 
8| 
8 
71 
3 
8 
Pot III 
8f 
9 § 
7 f 
7 * 
1 
8 
7 t 
8f 
71 
7 } 
4 
8 
£2 
° 8 
hJL 
78 
7 * 
li 
3 
8 
Pot IV 
7 f 
6| 
71 
7 
-1 
7 ! 
5l 
7 » 
6| 
5 
8 
7 t 
5 l 
6f 
6 
6 
8 
Pot V 
61 
74 
6 s - 
U 8 
5l 
5 
— 8 
6^- 
u 8 
r 1 6 
OF 
6 
5# 
4 
8 
6 
7 
6 
5 t 
6 
8 
T otal in inches. 
H2| 
M 
O 
00 
O0|M 
Of the three species used for experiments Senecio vulgaris 
shows a greater advantage from cross-fertilization than either 
of the others ; this advantage being not inferior to that ascer- 
tained for an average conspicuous and insect-fertilized plant. 
1 H. Miiller, Befruchtung, p. 183. 
