Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 248
to breathe bypassing the water through the gills. Marine animals (notfishes), like the whale,—which is a warm-blooded creature,and therefore not suited to exist without air,—are obligedto come to the surface to breathe. The density of saltwater is much greater than that of fresh water, and… … Obtaining nitrogen. speaking of the atmospherfe and its constituents, of whichnitrogeh is the principal. From its life-destroying pro-perties it is called azote by French chemists, and whenwe wish to obtain a supply of nitrogen all we, have to dois to take away the oxygen from the air by burning…
Scientific recreations
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