in Hybridisation 95 



of that supposition regarding variability of cultivated 

 plants which has already been expressed. 



Among the experimental species there were cultivated 

 plants, such as Aquilegia atropurpurea and canadensis, 

 Dianthus caryophyllus, chinensis, and japonicus, Nicotiana 

 rustica and paniculata, and hybrids between these species 

 lost none of their stability after four or five generations*. 



* [The argument of these two last paragraphs appears to be that 

 though the general mutability of natural species might be doubtful, 

 yet among cultivated plants the transference of characters may be 

 accomplished, and may occur by integral steps until one species is 

 definitely "transformed" into the other.] 



