THE PINE APPLE. 41 



passes along the middle of the house, returns 

 on itself and then makes four returns in the 

 back wall. The path- way enters from behind, at 

 the end opposite to that at which the flue enters ; 

 proceeds to the middle of the house, along the 

 middle, till it meets the flue at the opposite ; and 

 then it turns round till it meets the flue against the 

 back wall, close by the furnace. By this arrange- 

 ment of the walk, no interruption is given to the 

 flue ; which is of great consequence, where it has so 

 many returns to perform. A furnace invented by 

 Mr. James Scot, of Turnham Green, a commercial 

 Pine-grower of those days, is recommended. It is 

 cast in one piece, and requires a wrought-iron door 

 and a cast-iron plate to build over the chamber. 

 Justice agrees with Miller in recommending the 

 furnace to be built within the house, (but supplied 

 from without) in order that no heat may be lost. 



The plan given requires no succession-house ; 

 but he describes a frame used by many persons for 

 growing young Pines, " made in the same manner as 

 common hot-bed frames, but higher and broader ; 

 that is, three feet higher at the back, sloping to one 

 and a half in front, and six feet wide." These cover 

 a tan-pit causewayed at bottom, and surrounded 

 by a stone wall. It is very proper, he says, to have 

 these frames at work as well as the stoves. He 

 also mentions flued pits, such as are described by 

 Miller (Sect. 2.) Both stoves and pits he covers 

 with boards, tarpauling, or mats, at night ; and 

 the fuel he uses is coal or peat, avoiding wood as 

 of too rapid consumption. 



