Assertion: barometer's glass tube | /r/HasProperty | filled with refined mercury
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Source sentences:
text: A glass tube of 36 inches in length, filled with the open end upwards with refined mercury--thus boiled and suddenly inverted into a cistern, which is furnished with a leathern bag, on which the atmosphere, acting by its varying weight, presses the fluid metal up to corresponding heights in the tube, easily read off by an external scale attached thereto.