THE FORCING GARDENER. [fi. 1. 



and trained to a trellis fixed to the roof- 

 beams. 



The fafhes are alfo to be double on the 

 roof, and made all moveable, that air 

 may be freely admitted in all parts of the 

 houfe. 



Fig. '3. reprefents the elevation of the 

 front wall of either houfe, being the fame, 

 except in length. 



SECTION IV. <V 



Explanation of Plate IF. 



FIG. i. reprefents the plan and vertical 

 fedion of two- divifions of a hot- wall, 

 on a new and much-improved conftruc- 

 tion. 



Here the flue makes four returns^ de- 

 creafing gradually towards the top of the 

 wall, which is neceflary to the diftribution 

 of an equality of heat to the furface ; and 

 here alfo the upper courfe of the flue is 

 carried much nearer to the top of the 

 wall than is generally done, which is of 

 great utility in ripening the extreme fhoots 

 of the tree, thefe naturally growing later 



and 



