Chap. II. 



DESCENDANTS OF HERO. 



49 



Several flowers on the self-fertilised children of Hero in Table 

 XIV. were fertilised with pollen from the same no ever ; and from 

 the seeds thus produced, self-fertilised plants of the eighth 

 generation (grand-children of Hero) were raised. Several other 

 flowers on the same plants were crossed with pollen from the other 

 children of Hero. The seedlings raised from this cross may be 

 considered as the offspring of the union of brothers and sisters. 

 The result of the competition between these two sets of seedlings 

 (namely self-fertilised and the offspring of brothers and sisters) 

 is given in the following table : 



Table XVI. 



The average height of the thirteen self-fertilised grandchildren 

 of Hero is 79 "76 inches, and that of the grandchildren from a 

 cross between the self-fertilised children is 74 -85 ; or as 100 to 94. 

 But in Pot IV. one of the crossed plants grew only to a height of 

 15? inches; and if this plant and its opponent are struck out, as 

 would be the fairest plan, the average height of the crossed 

 plants exceeds, but only by a fraction of an inch, that of the self- 



E 



