that if such bacteria as the bacil- pressure from the treadle, which, through the medium volves, and in this guideway is arranged to slide a pin lus prodigiosus, which is very similar to the typhoid of a lever, actuates a friction cone. adapted to puncture the paper dial when pressed by bacillus,… … tamination with sewage and the waste of manufactur- REIS’ WATCHMAN’S TIME RECORDER. ing plants on its banks. Several large cities and spring. The paper dial issimply made, as shown in towns obtain their water supply from this source, and thesmall view, and may be readily slipped on the hour if…
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