52 Mendel's Experiments 



subsequent development, and consequently the results [of 

 the reciprocal crosses] can be reckoned together in each 

 experiment. The relative numbers which were obtained for 

 each pair of differentiating characters are as follows : 



Expt. 1. Form of seed. From 253 hybrids 7,324 seeds 

 were obtained in the second trial year. Among them were 

 5,474 round or roundish ones and 1,850 angular wrinkled 

 ones. Therefrom the ratio 2 '96 to 1 is deduced. 



Expt. 2. Colour of albumen. 258 plants yielded 8,023 

 seeds, 6,022 yellow, and 2,001 green ; their ratio, therefore, 

 is as 3*01 to 1. 



In these two experiments each pod yielded usually both 

 kinds of seed. In well-developed pods which contained on 

 the average six to nine seeds, it often occurred that all the 

 seeds were round (Expt. 1) or all yellow (Expt. 2); on the 

 other hand there were never observed more than five angular 

 or five green ones in one pod. It appears to make no 

 difference whether the pods are developed early or later in 

 the hybrid or whether they spring from the main axis or 

 from a lateral one. In some few plants only a few seeds 

 developed in the first formed pods, and these possessed 

 exclusively one of the two characters, but in the subse- 

 quently developed pods the normal proportions were main- 

 tained nevertheless. 



As in separate pods, so did the distribution of the 

 characters vary in separate plants. By way of illustration 

 the first ten individuals from both series of experiments 

 may serve*. 



* [It is much to be regretted that Meiidel does not give the 

 complete series individually. No one who repeats such experiments 

 should fail to record the individual numbers, which on seriation are 

 sure to be full of interest.] 



