POLMAISE SYSTEM OF HEATING. 
87 
The caloric imparted to the atmosphere of the house is obtained 
from the radiation of an iron stove, situated at the back of the 
house, and opposite to which is a hole in the wall for the admis¬ 
sion of the heated air, which in its passage is met by and distri¬ 
buted through a woollen cloth, requiring to be kept wet, in ordei 
to deprive the air of some portion of its aridifying qualities : 
now the statement, that this instantaneous contact between the 
