Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 237
f times lighterthan atmospheric air, and would do admirably for the in-flation of balloons were it not so expensive to procure in 70 CHEMISTRY. such large quantities as would be necessary. Ordinarycoal gas, however, contains a great deal of hydrogen, andanswers the same purpose. A very pretty… … Preparation of hydrogen with furnace. the solution and gently expressing the gas, bubbles will beformed which are of exceeding lightness (page 72). They •can also be fired with a taper. Another experiment may be made with hydrogen asfollows :—If we permit the gas to escape from the flask,and light…
Scientific recreations
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![An illustration from [Diagrams of natural philosophy / James Reynolds]. (1850)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b28750561-51-4.webp)
