Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 183
,and, having placed a card over the mouth, to invert itcautiously. If the card be kept in a horizontal position,the water will be supported in the glass by the pressureof the air agauast the urface of the card. (See Fig. 169.) 384. In a like manner, if we take aprinciple and jar, and having filled… … the gasometer. Fig. 170. sure of the atmosphere upon the waterin the vessel. Such an arrangementenables the chemist to collect and pre-serve the various gases without admix-ture with air; for if a pipe or tubethrough which a gas is passing bedepressed beneath the mouth of thejar, so that the…
Physics · Science · Technology
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