318 LUTHER BURBANK 



on the smaller branches the next. In general 

 practice, however, a whole tree is usually grafted 

 over at the same time. 



"BARK" GRAFTING AND "INARCHING" 



In grafting chestnuts a modified method called 

 "bark" grafting is best. The cion is trimmed 

 very thin and quite a space is allowed for the 

 cambium layer to come into contact with the 

 cambium layer of the stock. A T-shaped slit 

 is made in the bark of the stock, cutting through 

 to the cambium layer. The flaps about the 

 vertical slit are turned back, the cion inserted, 

 and the lips of the bark closed over it and bound 

 firmly with a piece of cloth or strong twine to 

 give good support. Grafting wax is applied 

 freely. 



Such grafts are usually made on a fairly large 

 stock where it would be impracticable to split 

 the stock. As a rule four cions are inserted on 

 one stock. If they should all live, two may be 

 removed, as the grafts do best when not too 

 much crowded. 



"Inarching," as already stated, differs from 

 ordinary grafting in that the cion is left upon its 

 original roots until the union is made. 



The plant from which the cion is to be taken 

 is planted close to the plant that is to serve as 



