Mar.] GREEN-HOUSE AND CONSERVATORY. 10 Iv] 



means. During the time when the sap is in full activity, the 

 scion must be procured, if possible, of exactly the same dia- 

 meter as the stock on which it is to be grafted. 



" First make two lateral oblique incisions, exactly similar, 

 the one on the stock from above to below, the other on the 

 scion from below to above, and both sloping from without 

 towards the centre or interior of the wood. The tongues are 

 then cut in form of a long wedge, by stripping them of their 

 bark. The cut parts are then re-united, taking care, as usual, 

 to make them coincide as exactly as possible. The scion being 

 bound by ligatures to the stock in the ordinary way. The 

 inferior part of the scion, that is, the lower, is plunged in a 

 vessel of water. It will, however, be necessary to remove 

 the water from time to time, and to renew the base of the 

 submerged scion by cutting off its extremity. 



" The stock is sometimes headed down immediately after 

 the operation, in which case, particular care must be taken to 

 leave a bud or a shoot above the incision, in order to attract 

 the sap to the place where the operation was performed. Some- 

 times, however, the stock is not headed down till after its 

 union with the scion is completed. 



" When the plant operated on is small, and the scion of a 

 delicate species, the plant should be covered with a bell-glass 

 to prevent the too great transpiration of the leaves. The air 

 in the interior must be occasionally renewed, as, without this 

 attention, it would, by the evaporation of the water, be ren- 

 dered too humid. If the diameter of the scion be less than 

 than that of the stock, the operation must of course be dif- 

 ferent from the preceding. In such a case, the incisions must 

 be limited simply to two longitudinal ones, of equal dimensions, 

 one on the scion, the other on the stock. This is the easiest 

 and the most natural mode, and also the most favorable for 

 giving solidity to the graft." 



This mode of grafting is, we think, particularly applicable 

 to oranges, lemons, &c., and these plants, engrafted by any 

 of the ordinary methods, that will admit of a portion of the 

 scions being left long enough to be inserted into a phial or cup 

 of water, will facilitate the operation. Some cultivators prac- 

 tise this mode of engrafting in this country; and a variety ')f 



