CURRENT LITERATURE 477 
ecisively apparent average of 3:1, 2. ¢. of four plants of this first gener- 
three had the dominating and one the recessive character. This was 
without exception for all characters which were considered. Interme- 
forms were not noticed in any of the experiments. Asan example may 
tioned that in the first experiment, from 253 hybrids 7324 seeds were 
inthe second year. Of these, 5474 were round or roundish, and 1850 
angular and wrinkled, resulting in a ratio of 2.96:1. In the second 
riment, 258 plants gave 8023 seeds, of which 6022 were yellow, and 2001 
giving a ratio of 3.01:1. The other ratios were for (3) 3-15:1, (4) 
I, (5) 2.82:1, (6) 3.14:1, (7) 2.84:1. For the whole series the ratio was 
or practically 3:1. : 
The second generation showed that these forms, which in the first gener- 
had exhibited the recessive character, did not vary in this character. 
/remained constant or fixed. Of those with the dominant characteristic 
first generation, two parts gave offspring which in the ratio of 3:1 carry 
nant and recessive characteristics, #7. ¢. the same relation as the 
forms ; and only one part remained constant with the dominant char- 
In the first experiment of this series, 565 plants from round seeds 
first generation gave 193 with none but round seeds —and were there- 
stant in this characteristic, 372 gave round and angular seeds in 
1. The number of hybrids was therefore to the number of con- 
t the relations were 3: page 1 — 
parts the dominating and recessive character, : 
t and second experiments carried through six generat — 
and seventh through five, and the fourth, fifth, and sixth, through ™ 
show the ratio of 2:1:1, although beginning with the te 
small number of plants was used. If, then, 4 | 
t characteristics, e. £ the dominating one, the r¢ recessi | 
