226 THE FORCING GARDENER- [&. f 



SECTION III. 



Explanation of Plate III. 



FIG. i. reprefents the plan and feftion 

 of an approved Grape-houfe, worked 

 by two fires. Here the front wall, and 

 front flue, fland on pillars which fhould 

 either be lintelled or obtufely arched, as 

 above hinted. The vines are to be plant- 

 ed within a few inches of the front wall, 

 and trained to a trellis which covers the 

 whole roof. 



Some build their front walls and flues 

 on the furface, without fupporting them : 

 this is by no means advifable ; as, in this 

 cafe, there is no poffibility of effectually 

 renewing or trenching the border without 

 endangering the wall and flue, which oper- 

 ation frequently becomes neceflary. 



In this houfe, there are no upright faflies ; 

 the length of the roof being of the greateft 

 importance here. In houfes where grapes 

 are trained on the roof, and which have 

 upright fafhes, we generally find that part 

 but indifferently covered with wood or 



fruit -> 



