PINE-APPLE — BOTTOM-IIEAT. 



365 



roof, in whieh the astragals are parallel. A segment of 

 an elliptical arch somewhat less than a quadrant, the 

 origin of the curve being on the front wall, seems bet- 

 ter adapted for a pit than any portion of a circle. This 

 pit is supposed to be heated by a small steam-pipe pass- 

 ing through a large iron tank or cistern a, filled with 

 water, on the same principle as exhibited in the figure 

 at page 321. 



The old-fashioned pine-stove was a lofty structure, 

 in the vinery form, with front sashes. It used to be 

 forty or fifty feet long, an'd twelve or fourteen feet broad, 

 and was commanded by two flues. In addition, to the 

 pine-plants in the pit, the roof was also partly covered 

 with vines, a practice justly condemned by the late Mr. 

 Nicol in his "Forcing Gardener.'' "VYe are also dis- 

 posed to agree with that experienced writer regarding 



r 



Fi:?. 45. 



the disuse, of the pine-stove itself. Besides other griev- 

 ous faults, a single house affords too little room; and 

 it is a matter of experience that, where the stock of 

 pine-plants is not extensive, certain and abundant crops 

 of fruit cannot be expected. Instead, therefore, of a 

 succession and fruitjng-house of the old form, with 



