Issue 20 and Volume 49.

FIRE AND WATER ENGINEERING The average quantity of water used daily in cities of the United States ranges from fifty to one hundred and fifty gallons per capita. The quantity used each day for drinking is estimated to be about half a gallon. It is of the greatest importance that this half-gallon shall be free from the germs of typhoid and other diseases. For many uses, such as sprinkling streets and flushing sewers, no purification is needed, but for a large number of other uses the value of the water depends on the amount and kind of mineral matter it contains. The best water for use in laundries, steam boilers, textile works, and paper mills is that which is clear, is free from iron, and contains only a moderate amount of other mineral matter. To accept a conflagration as a blessing in disguise is asking too much of any community…

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