A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 269
lace even thoughbarriers intervene, as may be shown by tak-ing a porous earthenware cup, a a, Fig. 236,such as is used in Groves battery, and ce-menting into its mouth *a tube, b. A wide-mouthed bottle, c c, being placed as a cover over the What are the diurnal variations ? What is the Aneroid ?… … Fig. 23G. porous cup, it may be filled with hydro-gen by displacement. If the end of thetube be put in water in a cup, .<#, the wa-ter will rush up the moment the bottle isremoved. The hydrogen diffuses outthrough the porous cup. Even India-rubber will allow the sameresults to be Fig. 23L shown.…
Chemistry · Physics
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