22 TREATISE ON 



of the graft O is trimmed in the shape of a toothpick or on a slant an inch or an inch & a 

 half long. 



2°. The stock is cut with a saw & smoothed as with the cleft graft. Space for the 

 graft is made by inserting a wedge of bone or of hard wood, with the same shape as the 

 graft, between the wood and the bark of the stock, when its sap is running. 



3°. The wedge is pulled out & the graft inserted in its place so that its cut surface 

 & the edges of its bark make contact with the cambium of the stock. Take care when 

 inserting the graft between the wood & the bark of the stock that the graft's bark doesn't 

 separate from its wood; it's essential for this type of graft, & for the cleft graft, that the 

 graft's bark remains attached. Grafts are set this way all around the cut stock three inches 

 apart from one another. 



4°. The incision in the stock is covered the same way as for cleft grafts. 



If the bark of the stock is split by the action of the wedge, the graft still will 

 succeed, provided that it's tied with a ligature. Instead of separating the bark with a 

 wedge, vertical strips of bark, of the same dimensions as the cut surfaces of the grafts, 

 can be peeled down without separating their lower ends from the stock. Place the cut 

 surfaces of the grafts against the cambium of the stock, and cover them up with the bark 

 strips. Fasten all of it with a cord & dress it. With this procedure, there's no risk at all of 

 the grafts' bark coming off while they're being inserted. 



The bark also can be split vertically at location P where the wedge is to be 

 inserted, so that it doesn't tear unevenly. Still, this will have less of an effect on the 

 success of the operation than on its neatness. Instead of cutting through the entire bark, 

 it's preferable to slit only the outer layers; the inside layers are more supple and will yield 

 more easily to the motion of the wedge. This precaution can prevent the bark from being 

 completely torn up. 



