92 PROPAGATION BY DIVISION. [CHAP. IV, 



ing the moss from the glass ; the glass itself is 

 afterwards taken off, and the pots set erect. 



This mode of grafting is practised very ex- 

 tensively at Messrs. Knight and Perry's Exotic 

 Nursery, Chelsea, and in many other first-rate 

 establishments of the same kind. 



The great points to be attended to in this 

 mode of grafting are, giving the plants bottom 

 heat, and covering them closely, whence the 

 name of greffe etouffee, as the plants appear 

 almost stifled for want of air. According to 

 both modes, as soon as the graft has taken, the 

 leaf and bud of the stock above the insertion 

 of the scion, which were left on to draw up the 

 sap, are cut off, and the plant is then in a fit 

 state to be removed to the greenhouse, or any 

 other place where it is to flower. 



Grafting-clay and grafting-wax have been 

 so frequently mentioned in the various opera- 

 tions of grafting and budding, that it seems 

 necessary to say a few 7 words on their compo- 

 sition. Common grafting-clay is made with 

 any kind of stiff clay mixed with a fourth part 

 of fresh horse-dung free from litter, and a por- 

 tion of cut hay; a little water is sprinkled on 

 the mass, and the whole is beaten together 

 several times a day for about a week, till the 

 ingredients are thoroughly amalgamated. The 

 French grafting-clay, or Onguent de Saint 

 Fiacre, is composed of equal parts of stiff clay 

 and cow-dung; but a superior kind, which was 

 recommended by the late M. De Candolle, is 

 composed of one pound of cow-dung, half a 

 pound of pitch, and half a pound of yellow 

 wax. Grafting- wax is generally made of equal 

 parts of turpentine, bees'-wax, and rosin, with 



