CONSTRUCTION OF HOT-HOUSES. 27S 



glasses fronting north. The grapes would be sour, 

 and the peaches without colour or flavour. 



Having premised this much, in a general way, I 

 shall now state what I think good medium dimen- 

 sions for different forcing-houses, and a few parti- 

 culars respecting them ; as going into detail on the 

 subject would require a separate volume. 



1. Of the Cherry-House. 



A cherry-house, to be worked by one furnace, 

 may be from thirty to forty feet in length ; from 

 ten to twelve feet wide, and twelve or fourteen feet 

 high. The parapet a foot or eighteen inches, and 

 the front glass two feet, or two and a half feet 

 high. The front flue to stand on the same founda- 

 tion with the parapet, and its return to be by the 

 back-wall ; but both flues to be separated from 

 the walls by a cavity of three inches. The front 

 parapet and flue to stand on pillars ; which pillars 

 should be thirty inches deep under the surface ; the 

 depth, or rather more than the depth requisite for 

 the border. The back wall to be trellised for train- 

 ing cherries to ; and the border to be planted with 

 dwarf cherries, or with dwarf apricots and figs, or 

 with all three. The front and end flues to be crib- 

 trellised for pots of strawberries, French beans, or 

 the like. 



2. Of the Fig-House. 



A fig-house, constructed as above, would answer 

 perfectly well. The figs might be trained to the 

 trellis at back, and either dwarf figs, apricots, or 



