276 I'HE FORCING GARDEN. 



The parapet may be about eighteen inches in height, 

 and the rafters should rest immediately upon it. 

 The intention here is, to train the peaches and nec- 

 tarines up the roof, in the same manner as vines, 

 only a little nearer to the glass, and none against 

 the back-wall. 



The tront-fiue may run within two feet of the 

 parapet, and sliould return by the back-wall, being 

 separated from it by a three-inch cavity. The )>a- 

 rai)et and front-flue must stand on pillars, three feet 

 deep under the ground-level, in order to give full 

 scope to the roots of the plants. 



A house intended as a succession liouse to tlie a- 

 bove, that is, not to be forced so early, may be of 

 a like length, ten or eleven feet wide, and thirteen 

 or fourteen feet high ; also without upright, or front 

 glasr,, and otherwise may be constructed in all re- 

 spects as above. And, 



A late peach-house, to be managed by one fur- 

 nace, may be forty or forty-five feet long; thirteen 

 or fourteen feet wide, and fourteen or fii"teen feet 

 high. It may either have, or not have, upright 

 glass in front ; w^hich should not, hov/ever, exceed 

 four, or four and a lialf feet in heiglit, including 

 the parapet. The flues may be conducted as above 

 specified for tlic early houses. The intention here 

 is, to train plants on trellises against tlie back wall, 

 and likewise half w-ayup the roof, in the maimer of 

 vines J so that it may be termed a double peach-house, 



5. Of the Finery, 

 Pineries are, and may be, very difterently con- 



