PINE-APPLE-—BOTTOM-HEAT. 347 
Fig. 44. 
pit is supposed to be heated by a small steam-pipe passing 
through a large iron tank or cistern a, filled with water, on 
the same principle as exhibited in the figure at page 305. 
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, and twelve or fourteen feet broad, and was 
commanded by two fiues. 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.” We are also disposed to agree with 
that experienced writer regarding the disuse of the pine- 
Fig. 45. 
stove itself. Besides other grievous faults, a single house 
affords too little room; and it is a matter of experience 
