Propagation by Grafting. 225 



388. Grafting Cord is made by soaking balls of com- 

 mon wrapping twine in melted grafting-wax. 



389. Grafting Paper is made by painting thin ma- 

 nilla paper with melted grafting-wax. For painting, the 

 paper is preferably spread out on a board of the exact 

 size of the sheet; to prevent too rapid cooling of the 

 wax the board should be heated. The wax should be 

 heated hot enough to spread easily, but not so hot that 

 it is absorbed by the paper. Thin muslin or calico is 

 often used instead of paper. 



Grafting paper and grafting cloth should be stored iu 

 a cool, moist place to preserve their adhesiveness. 



Many kinds of cion grafting slightly differing in de- 

 tails have been described, but the more important are 

 whip-grafting, cleft-grafting and side^grafting. 



390. In Whip-Grafting (splice-grafting, tongue graft- 

 ing) the cion and stock are both cut off with a sloping 

 cut, about an inch long, after which a tongue is formed 

 on each by splitting the wood longitudinally a short dis- 

 tance (Figs. 107, 108). The cion is best cut behind a 

 bud, as shown. 



Tn joining, the tongue of the cion is inserted into the 

 split of the stock, so that the cambium line- of the cion 

 and stock (68) coincide on one edge, and the two are 

 crowded together with considerable force, after which 

 the joint is wrapped with a narrow strip of grafting 

 paper or grafting cloth (389), or wound with grafting 

 cord (388). Sometimes the joints are simply tied with 

 unwaxed cord. 



Whip-grafting is generally used when the stock is 

 little if any thicker than the cion. It is much used by 



