egree of purity of water, a still more important investigation has been found of late amount of heating required to kill the bacteria. years in bacterioscopic examination. In fact it has In the Rietschel & Henneberg boiler, however, no drop of water leaves the boiler before having reached been… … water, while the feed water supplied to the boiler is Fig. 3.—Stationary Sterilizer Having a Capacity Fig. 4.—Steam-Operated Water-Sterilizer Producing preheated at the same time to the boiling point. This of 66 Gallons per Hour. 26.4 Gallons of Sterilized Water per Hour. and spread. Recent…
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