27:: OF TEIE BLIGHT AND SIMILAR DISEASES. 



one of its best ends, that of improving useful arts. And 

 here I cannot but mention the experiments continually 

 going on under the inspection of the ingenious Mr. 

 Knight, of fertilizing the germen of one species or vari- 

 ety with the pollen of another nearly akin, as in apples, 

 garden peas, &c., by which, judiciously managed, the 

 advantages of different kinds are combined. By the 

 same means Linnzeus obtained intermediate species or 

 varieties of several plants : and if any thing were want- 

 ing to confirm his theory respecting the stamens and 

 pistils, this alone would place it out of all uncertainty. 



