200 PETUNIA VIOLACEA. CHAT. VI, 



The Westerham-crossed plants in weight to 

 the self-fertilised as 100 to 22 



The Westerham-crossed plants in weight to 

 the intercrossed as 100 to 101 



The intercrossed plants in weight to the self- 

 fertilised as 100 to 22-3 



We here see, judging by weight instead of as before by height, 

 that the Westerham-crossed and the intercrossed have an 

 immense advantage over the self-fertilised. The Westerham- 

 crossed are inferior to the intercrossed by a mere trifle ; but it is 

 almost certain that if they had been allowed to go on growing for 

 another month, the former would have completely beaten the 

 latter. 



As I had an abundance of seeds of the same three lots, from 

 which the foregoing plants had been raised, these were sown in 

 three long parallel and adjoining rows in the open ground, so as to 

 ascertain whether under these circumstances the results would be 

 nearly the same as before. Late in the autumn (Nov. 13) the ten 

 tallest plants were carefully selected out of each row, and theii 

 heights measured, with the following result : 



TABLE LXXXHL 



Petunia violacea (plants growing in the open ground). 



