196 



OPEN AIR GKAPE CULTURE. 



A method which partakes partly of grafting and 

 partly of inarching is shown in the annexed figure. 

 Fig 56. Here the graft is covered with soil which 



Fig. 56. 



supports it in the same manner as a cutting, while at 

 the same time it receives nutriment from the stock. 



SEED HYBRIDIZATION. Young vines are never raised 

 from seed, except for the production of new varieties ; 

 but, as this subject is deservedly attracting very 

 general attention at present, a few practical hints 

 thereon may prove acceptable. 



Ever since Bacon observed that Ct The compound 

 ing and mixture of plants is not found out, which, 

 nevertheless, if it be possible, is more at command 

 than that of living creatures, wherefore it were one 



