140 Atavism. 
HESPERIS FROM THE SEED OF WHITISH FLOWERED PLANTS. 
W 5% 
IV 2 
57% 
\ 92% W. 
W^ 
30% 
} 
LI 
4% 
2% 
I 6% L. 
V 
2% 
2% V. 
I determined the composition of the cultures of the 
next year, 1 899, in the same way ; they were both raised 
from the seeds of lilac plants. One of them (5th gen- 
eration) flowered partly in 1899 and partly in 1900; 
but the other only in 1899. The result was as follows: 
HESPERIS FROM THE SEEDS OF LILAC FLOWERED PLANTS. 
Color 1st Experiment (5th Gen.) 2d Experiment (3d Gen.) 
W^ 3% \ 4% \ 
W 2 15% 38% W 22% - 50% W. 
W 3 20% > 24% J 
L L \ II \ . L 2 ll \ - 
V 32% = 32% V 22% = 22% V. 
The first list is based on 155 flowering plants, and the 
second on 219. 
The seeds of the whitish Hespcris, therefore, in this 
experiment, produce their like with a small percentage 
of lilacs and violets. The seeds of lilacs, on the other 
hand, give rise to the three types in about equal numbers, 
though it must be remembered that the limit between 
/T.3 and LI is to a certain extent arbitrary. 
I have not yet made a sufficient number of observa- 
tions on the inheritance of the violet color in this race. 
In the only experiment which I have carried out, only 
five plants flowered and they had the same color as their 
parents. 
Let us now pass on to a detailed description of the 
