242 Non-Isolablc Races. 
uals, which gave a poorer harvest, gave rise to the larg- 
est number of abnormals amongst their offspring. 
I have repeated the same experiment with the harvest 
of 1899, with the seeds of four separate seed-parents, but 
as I did not know their capacity for producing abnormals 
in advance, the difference was not so striking. The large 
seeds gave rise to 2-4%, the small ones to 3-13% abnor- 
mals. Altogether seedlings from 2758 large and from 
617 small seeds were examined. 
Two questions present themselves in connection with 
the interpretation of these experiments: (1) Can the 
position in which the small seeds are chiefly produced 
on the plant, be determined? 1 (2) Are the germs of the 
small seeds perhaps the better nourished ones ; is there, 
for instance, just as much nutriment brought to them 
as to the large seeds, but must they, for want of room 
or for other reasons, utilize it in some other way? 
I recommend these problems for further study, and 
may perhaps in the mean time record a few facts bear- 
ing on them which I have observed. In the crimson 
clover, monstrosities occur much more frequently among 
the seedlings from small than among those from large 
seeds. The latter are almost all perfectly normal. The 
small seeds often produce plants with supernumerary 
cotyledons, or with two or more primary leaves (instead 
of one) or with divided peduncles, symphyses in the 
leaves and other malformations (Fig. 48). Unfortunately 
it is often difficult to keep these individuals alive and to 
bring them to flower. 
Let us now cast a final glance over the whole course 
of the experiment. 
1 In stocks, according to CHATE, Culture des Giro-flees , the seeds 
which produce double-flowered plants arise chiefly from the lower 
half of the pods of the strongest racemes of the plant. 
