years has proved the unfailing efficacy of the simpler whatever for extracting the lighter or finer impurities, has been made to find a substitute for one of the gases. treatment, which consists in watering abundautly with hot which defy filtration, and which once incrusted in a boiler Street gas,… … side, while the lighter impurities cliug to the under sides of the howls or receivers. shut off, is said to occur but rarely, and with proper HOFFES' FEED WATER HEATER AND LIME EXTRACTOR. The heater is easily cleaned in a very few minutes, even care it need never happen. However, to prevent all…
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