description of a Stove. 413 
At four o’clock the thermometer, placed at the distance 
above-mentioned, was at 42 degrees. 
At five, at 37 degrees. 
At seven, 34. 
At nine, 31. 
At midnight, 26. 
You could not bear to touch with the hand the iron rim 
of the heat openings. The bulb of the thermometer be- 
ing placed opposite one of these openings, at the dis- 
tance of ^ centimetres (about 3 inches) rose in four mi- 
nutes to 35 & . 
The next morning at 9 o’clock the thermometer, which 
had been again placed at the distance of 35 centimetres., 
was at 22°. 
Finally at noon, that is to say twenty-one hours after 
the last wood was put in, and eighteen hours after the 
key had been turned, all the wood being reduced to char- 
coal, the thermometer stood between 18° and 19°. It was 
then placed two centimetres only from one of the heat 
openings, and in less than six minutes it rose to 26°. 
These effects are so different from what we commonly 
obtain by the consumption of three or four times as much 
fuel, that I may expect more than one reader to suppose 
them exaggerated ; but I hope a sufficient number will 
be found disposed to make trial of these stoves, that 
their testimony and example may at length triumph over 
our habits, and produce a general conviction, that, with- 
out suffering any privation ourselves, we may preserve 
for our offspring what useless waste is daily robbing 
them of, in an article of the first necessity. 
Vol. i 
