PHENOMENA OF WINTER, 253 
; hooked iron rods ; so that the smoke may be permitted to pass the central flue, or 
be made to pass along the whole range. DD are two entrance doors. 
All the flues are built of pigeon-holed bricks on edge, upon which rest 9-inch 
, paving-tiles. Upon these are courses of three bricks on edge, pargeted within, 
? and securely covered with other 9-inch square paving- tiles. 
GROUND PLAN. 
ch 
From what v^^e have stated, and by inspection of the plan, it will be 
evident that a flue so erected, (if by a judicious management of the neck it draws 
well,) must radiate its heat very regularly, so as to produce an equability of 
i temperature rarely to be met with in houses warmed only by fire-flues. 
The construction also forms a very excellent pit, which may be filled with 
stable-dung, tree-leaves, tan, sawdust, or sand. The only objection which suggests 
: itself, is the dryness at the sides, created by contact of the materials with a heated 
surface of brick. However, moisture may ak,vays be maintained by introducing a 
' rain-water tank in, or under, the house ; and here we may allude to a new range 
I of houses which we inspected, where the front walls being built upon arches, 
i a very large recipient was excavated under them which contained all the water 
j that fell upon the sashes, from whence it was laded out with great facility by an 
: opening covered with a trap-door, made to fit close and move upon hinges. 
The covering of the flues might consist of tiles prepared to contain water ; and 
then, by watering the two surfaces of the flued pit, a copious vapour would be 
raised without, and aridity obviated within the pit, 
A house of the description now indicated^ — 18 or 20 feet long, by 10 or 12 
wide, would form a very efficient pine-stove, grapery, and plant-house : we find no 
deficiency in it ; and further, if it be fitted up with semi-transparent, moveable 
