238 Ko)i-Is()lablc Races. 



of leaves counted on tlie plant (about 100). The numbers 

 were therefore smaller in this than in the previous year. 

 For this culture I had planted out the normal and ab- 

 normal seedlings of the most abnormal seed-parents and 

 some abnormal seedlings of the remaining seed-parents. 

 No essential difference between these three groups could 

 be detected when they were recorded at the time of flow- 



ermg. 



Pitclier formati(^n was observed ])oth amongst the 

 seedlings and during the later stages; tliis is another 

 indication of correlation amongst the vari(xis characters. 



In the summer of 1898, 41 of the selected plants fur- 

 nished a sufficient quantity of seed. In the following 

 s])ring I determined the proportions of seedlings with 

 compound primary leaves in the crops from each of these 

 parents and reckoned them in percentages. The compo- 

 sition of the 1898 harvest with respect to this character 

 was : 



Percentage of abnormal offsprino; 1 2 3 4 5 8 11 15 16 20 24 27 

 Parents 3 12 7542121 11 11 



That is to say, a considerable advance which at once 

 becomes evident if this series of figures is com])ared with 

 that given above for the 1897 harvest (1-4 and 6%). 

 This advance has moreover taken place in spite of the 

 falling off in llie number of 4-foliate leaves in tlie seed- 

 parents. 



In the spring of 1899 I only selected seedlings with 

 trifoliate primary leaves for transplanting (see Fig. 47C), 

 and only from amongst the offspring of the four seed- 

 ])arents with from 15-24Vr abnormal oft'spring. At the 

 time of flowering, however, my hopes were disappointed. 

 In the middle of July there were amongst 120 richlv 

 branched flowering plants 45% without the anomalv, 



