ched across from house to house be- The gauge shown in the accompanying illustrations in twenty-four hours. In Fig. 3 the gauge is shown tween the upper stories lines were attached, from is designed to register extremely low ranges or varia- complete with chart ready for application. The small… … known. Photographs have been obtained of the spec- have given place to the somewhat inartistic highways Fig. l.-DIAPHRAGMS OF GAUGE, tra of eight planetary nebulae, showing bright lines. of sanitation, we may not be surprised if the offended household gods testify their wrath by epidemics like The…
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