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Accurate Water Barometer.
This water barometer is very accurate in predicting stormy weather by the rise of the water level in it's spout.
In this barometer a high water level in the spout corresponds to a low-pressure system and vice versa. Being sensitive to temperature changes and atmospheric pressure, it should be placed where room temperature is fairly constant - not in direct sunlight.
Two pages ( 2 sheets - front on each sheet )
B & W photos, illustrations, expanded views, and instructional narrative.
My plans are from original source materials such as books, magazines and other publications and the pages are carefully removed.
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