By William Kent, Esq. 389 



in the chamber, has enabled me to increase, with facility, the 

 temperature of the house considerably, and with a smaller 

 iire, as it allows the current of heated air to escape with more 

 rapidity, and the house is consequently sooner filled with it. 



The pit is built, back and front, of the same height from 

 the ground, and contains part of the chamber above the 

 floor, into which chamber the flue is turned immediately on 

 entering the house, and carried the whole length, and back 

 again, as shewn by the letters, b b b, after which it passes 

 along the front, c c, and end, d, all which the plan will more 

 clearly exhibit. The bottom of the pit, k, which also forms 

 the top of the chamber, is paved with stone, and is seventeen 

 inches deep, the pit itself, wherein the pots are plunged, being 

 filled with saw-dust. I apprehend the saw-dust will last at least 

 for this purpose, two years ; no worms will breed in it, and the 

 labour of turning it, and shifting the pots, will be much less 

 than when tan is used. By occasionally pouring a few pots 

 of water into the pit, which may be done by lifting up a pot 

 here and there, a fine steam will be raised to the roots of the 

 plants ; and by doing the same through the registers into the 

 chamber, the whole house may be filled with steam. 



