pursuit so simple and yet interesting, that monia, a cloudy appearance. Organic matter may be ing large surfaces which will transmit the heat to the many of our readers will, we apprehend, desire to suspected in water containing ammonia. current of air that enters the dwelling. But this in- enter… … No. 7. Test for iron.— chimney, where they are CAMP'S HOT-AIR FURNACE.! This is a solution of prussi- turned by a second valve ate of potash, and, if the least iron be present, its action through the middle pipe, F, of the upper series, and more so when the requisite materials can be obtained is…
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