CHAP. U. CROSSED AND SELF-FERTILISED PLANTS. 39 



less capsules produced by two other self-fertilised plants of the 

 .same lot, not included in Table IX., which had been highly 

 favoured by being grown in separate pots, contained the large 

 average number of 5 1 seeds per capsule. 



TABLE IX. {Eighth Generation.') 



Crossed and self-fertilised Plants of the Ninth Generation. 

 The plants of this generation were raised in the same manner 

 as before, with the result shown in Table X. 



The fourteen crossed plants average in height 81 '39 inches 

 and the fourteen self-fertilised plants 64*07, or as 100 to 79. 

 One self-fertilised plant in Pot III. exceeded, and one in Pot IV. 

 equalled in height, its opponent. The self-fertilised plants 

 showed no sign of inheriting the precocious growth of their 

 parents; this having been due, as it would appear, to the 

 abnormal state of the seeds from the unhealthiness of their 

 parents. The fourteen self-fertilised plants yielded only forty 

 spontaneously self-fertilised capsules, to which must be added 

 seven, the product of ten flowers artificially self-fertilised. On 

 the other hand, the fourteen crossed plants yielded 152 spon- 

 taneously self-fertilised capsules ; but thirty-six flowers on these 

 plants were crossed (yielding thirty-three capsules), and these 

 flowers would probably have produced about thirty sponta- 

 neously self-fertilised capsules. Therefore an equal number 

 of the crossed and self-fertilised plants would have produced 

 capsules in the proportion of about 182 to 47, or as 100 to 26. 

 Another phenomenon was well pronounced in this generation, 

 but I believe had occurred previously to a slight extent ; 



